Physics Homework Questions & Answers Archive

Focusing System of the Eye Three events occur to bring the image into focus on the retina: accommodation, pupil constriction, and convergence. Test your knowledge about these events by selecting 'True' or 'False'. Accommodation is as a result of parasympathetic stimulation from the Optic nerve (l). In accommodation, the lens becomes more convex (spherical) in shape. One reason accommodation becomes more difficult as an object is brought closer to the eye because the lens cannot become any more flattened. When we look at a close-up object, the pupil diameter decreases. When the pupil is constricted, the light entering the eye tends to pass through the center of the lens than through the edges of the lens. The smaller the pupil diameter, the more light enters the eye and is directed toward the retina. Both pupils can pick up the light rays when the eyes are looking forward. Convergence states that eyes are rotated medially as an object moves closer. In convergence, rotation of the eyes is accomplished by the medial oblique muscles.

What is the anatomical name for the voice box?

imuridsen : Course Home labmastering.pearson.com/?courseld =1314520411. Multiple Choice Question 9.48 Part A We do not observe tides in a community swimming pool because the tides are only observed at night. it is shallow compared to the ocean. gravitation on the small mass of water is negligibly small. they are masked by the much stronger pull of Earth gravity. all parts of it are practically the same distance from the Moon. Submit Request Answer Provide Feedback

An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.7 x 10^4 kg, and the force causes its speed to change from 6200 to 5600 m / s. (a) What is the work done by the force? (b) If the asteroid slows down over a distance of 1.2 x 10^6 m determine the magnitude of the force. (a) Work = (b) F=

ASSIGNMENT Assignment 2 Items Details Items - Due Oct 18, 2024 11:59 PM. - Late work is permitted until Oct 21, 2024 11:59 PM. It will be turned in automatically after the late work period ends. Submit answer Get help Practice similar Find the distance from the point (-1,2,5) to the plane -4x+3y-5z=5. Submit answer Next item Answers Answer Points - B 1 Report technical issue · Email instructor

mylabmastering. pearson.com Quiz Chapter 5 Hide Timer 01:10:56 Multiple Choice Question 5.2.11 35 of 40 Revie Part A When holes are drilled through the wall of a water tower, water will spurt out with the greatest speed from the hole closest to the top of the tower. middle of the tower. bottom of the tower. all the same Submit Request Answer Provide Feedback Next ；

Determine whether you can use the normal distribution to approximate the binomial distribution. If you can, use the normal distribution to approximate the indicated probabilities and sketch their graphs. If you cannot, explain why and use the binomial distribution to find the indicated probabilities. A survey of adults in a region found that 32% name professional football as their favorite sport. You randomly select 12 adults in the region and ask them to name their favorite sport. Complete parts (a) through (d) below Determine whether a normal distribution can be used to approximate the binomial distribution. Choose the correct answer below. A. No, np<5 B. No, nq<5 C. Yes, both np ≥ 5 and nq ≥ 5

Time In the atmospheric figure below, the Polar Cells are identified by the letter: Select one: a. A. b. G. c. D. d. B. e. C. f. F.

As shown in the figure, fluid fills a container having several sections. At which of the indicated points is the pressure greatest?

This chart represents a(n): Intermittent lift well that is operating normally. Continuous lift well that is operating normally. Continuous lift well with a throttling operating valve. Intermittent well with an injection cycle that is too long.

Examine the image. Which sites are most likely to be located on oceanic crust?

Find the slopes of the lines I₁, I₂, I₃, and I₄ in the figure below.

The amplitude of the action potential of a given neuron is - dependent on the magnitude of the incoming stimulus. - always the same regardless of the magnitude of the incoming stimulus. - smaller if the resting potential of the neuron is lower. - larger in response to depolarizing currents of greater magnitude.

10 1 point What is the effect of synaptic facilitation? A decrease in synaptic response after repeated stimulation An increase in synaptic strength due to residual calcium A long-term weakening of synaptic strength Removal of neurotransmitter receptors from the synapse

I. (5 points) The growth rate for a fish depends on its weight. For a certain fish population, the growth rate G as a function of its weight w is G(w)=-w^2+4w The weight, w is measured in ounces and G is measured in ounces per year. a. Is the function G(w) concave up or concave down, and why? i. Answer: ii. Reason: b. At what weight is the fish growing the fastest (maximized), and what is the maximum growth rate? Show all your steps and include all units. i. Weight = ii. Growth rate = c. Assuming that the end of life occurs when growth stops (G(w)=0), at what weight will death occur? Show all your steps and include all units. i. Value only: ii. Units only:

What is the frequency of green light that has a wavelength of 501 nm? (c=3.00 × 10^8 m / s)

Determine the quadrant in which θ lies. sec (θ) > 0, cot (θ) < 0 I II III IV

Which approaches to personality are based on the idea that personality is motivated by inner forces and conflicts about which people have little awareness or control? O Social Learning O Psychodynamic O Trait O Learning

A flow of 300 gpm is pumped against a head of 75 feet. The pump is 80% efficient and the motor is 85% efficient. What is the Motor HP? 6.2 HP 9.5 HP 8.4 HP 7.3 HP

Which one of the following photons of electromagnetic radiation will have the greatest energy? One photon of red light (wavelength =650 nm) One photon of blue light (wavelength =470 nm) One photon of yellow light (wavelength =580 nm) One photon of green light (wavelength =550 nm) All of these will have the same energy.

Listed following are several objects in the solar system. Rank these objects from left to right based on their distance from the Sun, from closest to farthest.

A solid of constant density is bounded below by the plane z=0, above by the cone z=4r, r ≥ 0, and on the sides by the cylinder r=2. Find the center of mass. The center of mass is (x̄, ȳ, z̄).

Question 18 You are asked to gather some data on wait times for a popular rollercoaster at the amusement park where you work. You can't track the waiting time of every rider, so you decide to sample 81 people at random each day. The mean of a distribution of sample mean wait times is 18 minutes and the standard deviation of the sampling distribution ( σₓ̄ ) is 0.5 minutes. What is the standard deviation of the population ( σ )? 1. ? 2. 0.5 3. 18 4. 4.5

Find the work done by F=(x^2+y)i+(y^2+x)j+ze^2k over the following paths from (5,0,0) to (5,0,5). a. The line segment x=5, y=0,0 ≤ z ≤ 5 b. The helix r(t)=(5 cos t) i+(5 sin t) j+(5t/2π) k, 0 ≤ t ≤ 2π c. The x-axis from (5,0,0) to (0,0,0) followed by the line z=x, y=0 from (0,0,0) to (5,0,5) a. Find a scalar potential function f for F, such that F=∇f. A. x^3+xy+y^3+ze^z-e^z+C B. (1/3)x^3+xy+(1/3)y^3+z-e^z+C C. (1/3)x^3+x^2y^2+(1/3)y^3+e^z+C D. (1/3)x^3+xy+(1/3)y^3+ze^z-e^z+C E. The vector field F is not conservative.

Understanding the scale of Earth is challenging without context. Approximately 25 percent of Earth's surface is at land mass. What is the ratio of this surface area of land mass on Earth to the total surface area of Mars? 3 2 1 4

r = [4.0 cm + (25 cm/s^2) t^2] i + (5.0 cm / s) t j t=0 r=4.0 cm t=2.0

Los trenes de carga solo pueden producir una aceleración relativamente pequeña. (a) ¿Cuál es la velocidad final de un tren de carga que acelera a una tasa de 0,0500 m / s^2 durante 8,00 min, que parte de una velocidad inicial de 4,00 m / s? (b) Si el tren puede frenar a una tasa de 0,550 m / s^2, ¿cuánto tiempo tardará en detenerse a partir de esta velocidad? (c) ¿Qué distancia recorrerá en cada caso?

Consider the function (f(x)=frac6sqrtx^2-16) over the interval ([3,5]). Does the extreme value theorem guarantee the existence of an absolute maximum and minimum for (f(x)) on this interval?

Two carts with masses m₁=100 kg and m₂=50 kg are connected by the rope at the applied force of Fₐ=850 N. Both cars are experiencing friction with coeffic of friction is 0.15

공기 표준 디젤 사이클이 압축비가 18 , 차단비 2 를 갖고 있다. 압축과정 초기 공기의 온도, 압력 및 체적은 각각 27 °C, 100 kPa, 1,917 cm^3 이다. 공기의 비열이 일정하다고 가정하고 (냉공기 표준, cold-air-standard assumption) 사이클 각 과정 최종 상태의 온도와 압력, 정미 출력일과 열효율, 평균 유효압력을 구하여라.

Problem 7: (3% of Assignment Value) Please answer the following questions about uniform circular motion. - Part (a) v A planet orbits a star in a circular orbit at a constant orbital speed. Which of the following statements is true? The planet experiences a centripetal force pulling towards its star. Correct! - Part (b) v When a planet is orbiting a star, which force plays the role of the centripetal force? The gravitational force. Correct! - Part (c) v Which of the following statements about uniform circular motion is true? An object in uniform circular motion experiences a centripetal force. Correct! Part (d) A student swings a ball on a string in a circle at a constant speed, then suddenly lets go of the string. When the student lets go of the string, what happens from a physics standpoint? The centripetal force disappears. A tangential force stops acting on the ball. A tangential force starts acting on the ball. A centripetal force starts acting on the ball. Nothing happens from the standpoint of physics. None of these are correct.

The speed of a transverse wave on a string is 170 m / s when the string tension is 120 N. To what value must the tension be changed to raise the wave speed to 180 m / s? Hints: v = sqrt(F/mu) and you are solving for mu first and in the second part, you are using mu to calculate F ? [mark all correct answers] a. 195 N b. 132 N c. 155 N d. 145 N e. 105 N f. 35 N

The Earth orbits the sun in 365 days. What is the tangential speed, in m / s, of the earth in orbit? The average sun-earth distance is 1.50 x 10^11 m.

Which of the following is a physical change? wood burning in a campfire iron turning to rust butter turning rancid distillation cooking an egg

Question 14 (1 point) Why did iron and nickel separate from silicon and aluminum when Earth was settling into layers? They have opposite charges. They have different densities. They have different temperatures. They were pushed down by other elements.

The mercury manometer shown here is open to the atmosphere at 760 torr on the right side and contains a confined gas on the left. The pressure of the confined gas is: A. 727 torr B. 760 torr c. 793 torr D. 1520 torr E. 1487 torr

A block with a mass of 0.440 kg slides, starting from rest, from point A down the frictionless track that includes a loop-the-loop with a radius of r=2.04 m, as shown. The block initially is 5.51 m high from the bottom of the track. What is the minimum speed required for the block to stay on the track at the top of the loop (point B) in m / s ? 4.47 7.75 6.33 9.49 8.95

Block B has a mass of 2.70 kg and is moving to the left at a speed of 4.80 m/s. Block A has a mass of 3.60 kg and is moving to the right. The two blocks undergo a perfectly inelastic collision. What should be the velocity of Block A in order to have the two blocks remain at rest after the collision?

The larger the gauge number, the smaller the diameter of the conductor. True False

Convert the polar equation to rectangular coordinates. (Use variables x and y as needed.) θ=3 π

x PC. Vector Addition X+G+F F+L=C C

The vertices of triangle DEP are D(-3,-3), E(-2,-4), and F(-2,0). Graph triangle DEF and its image after reflection in the line y=-x.

From this graph, you can tell that a move from D1 to D3 would show an increase in supply, a decrease in supply, an increase in demand, a decrease in demand.

The puck in Figure P11.46 has a mass of 0.120 kg. The distance of the puck from the center of rotation is originally 40.0 cm, and the puck is sliding with a speed of 80.0 cm/s. The string is pulled downward 15.0 cm through the hole in the frictionless table. Determine the work done on the puck. (Suggestion: Consider the change of kinetic energy.)

Part A If the electron is initially in the ground state level of the finite square well, E1=0.625 Einfty, and absorbs a photon, what maximum wavelength can the photon have and still liberate the electron from the finite well? Express your answer numerically in meters using three significant figures.

Hocke's Law F = -kx

Find the absolute extrema of the function (f(x, y)=5 x^2-5 x y+4 y^2+x-2 y+4) on the domain defined by (-1 leq x leq 2) and (-3 leq y leq 2). Please show your answer to at least 4 decimal places. Absolute Maximum: Absolute Minimum:

Some people believe that different octane gasoline result in different miles per gallon in a vehicle. The following data is a sample of 11 people which were asked to drive their car only using 10 gallons of gas and record their mileage for each 87 Octane and 92 Octane. Person Miles with 87 Octane Miles with 92 Octane --------- 1 234 237 2 257 238 3 243 229 4 215 224 5 114 119 6 287 297 7 315 351 8 229 241 9 192 186 10 204 209 11 547 562 Do the data support that different octanes produce different miles per gallon at the α=0.02 level of significance? Note: A normal probability plot of difference in car mileage between Octane 87 and Octane 92 indicates the population could be normal and a boxplot indicated no outliers. a. Express the null and alternative hypotheses in symbolic form for this claim. Assume µd̄=µ1−µ2, where µ1 is the population mean mileage for Octane 87 and µ2 is the mean mileage for Octane 92. H0: µd̄ = 0 H1: µd̄ ≠ 0 b. What is the significance level? α= 0.02 c. What is the test statistic? Round to 3 decimal places. ? d. What is the p-value? Round to 5 decimal places. p= e. Make a decision. - Reject the null - Do not reject the null f. What is the conclusion? - There is sufficient evidence to support the claim that different octanes produce different miles per gallon. - There is not sufficient evidence to support the claim that different octanes produce different miles per gallon.

A completely submerged object always displaces its own weight of fluid. volume of fluid. density of fluid. all of the above none of the above

A tank is full of water when a valve at the bottom of the tank is opened. The equation V=100(242-t)^2 gives the volume of water in the tank, in cubic meters, after t hours. What is the volume of water in the tank before the valve is opened? square meters How long does it take the tank to fully empty hours Find an equation for dV/dt dV/dt= What is the flow rate after 4 hours? Select an answer When is the water flowing out of the tank the fastest? t= hours

Alex is asked to move two boxes of books in contact with each other and resting on a rough floor. He decides to move them at the same time by pushing on box A with a horizontal pushing force FP=9.3 N. Here A has a mass mA=10.6 kg and B has a mass mB=7.0 kg. The contact force between the two boxes is FC. The coefficient of kinetic friction between the boxes and the floor is 0.04. (Assume FP acts in the +x direction.) (a) What is the magnitude (in m / s^2 ) of the acceleration of the two boxes? □ m / s^2 (b) What is the force exerted on mB by mA? In other words what is the magnitude (in N ) of the contact force FC? □ N (c) If Alex were to push from the other side on the 7.0-kg box, what would the new magnitude (in N ) of FC be? □

A block of mass m₁=40 kg on a horizontal surface is connected to a mass m₂=17.3 kg that hangs vertically as shown in the figure below. The two blocks are connected by a string of negligible mass passing over a frictionless pulley. The coefficient of kinetic friction between m₁ and the horizontal surface is 0.24. (a) What is the magnitude of the acceleration (in m / s²) of the hanging mass? □ m / s² (b) Determine the magnitude of the tension (in N) in the cord above the hanging mass. □ N

Review A 2.5 kg mud ball drops from rest at a height of 14 m. Part A If the impact between the ball and the ground lasts 0.50 s , what is the average net force exerted by the ball on the ground? Express your at using two significant figures. F = □ N

The concept that geological processes operating now are the same processes that operated in the past is the principle of uniformitarianism catastrophism plate tectonics superposition

A loaded tractor-trailer with a total mass of 5400 kg traveling at 2.7 km/h hits a loading dock and comes to a stop in 0.58 s. What is the magnitude of the average force exerted on the truck by the dock? Express your answer using two significant figures. F= N

¿Qué cantidad de calor se debe aplicar a un trozo de plomo de 850 g para que eleve su temperatura de 18°C a 120°C? CePb=0.031 cal / g°C.

First Name Kendra Last Name - Lab 1-Measure the Gravity (Weight) of your toy- car. Mass (g) Mass (kg) Gravity (weight) / N 1.Measure by triple beam 80.08 0.08 kg 0.08 kg(9.8 m / s) 2. If move your toy-car to the Moon, Its mass will be the same (the same/bigger/smaller). And its Weight (Gravity) will be smaller (the same/bigger/smaller). Why? Lab 2-Explore the characteristics of Friction Force 1. Make your car to move at different surface with constant velocity. (The friction force equals the spring force) 1. Conclusion: the different surface add different friction 2. Add different weight (More weight causes bigger normal force). Move the car on the lab table with constant "V" and record the friction force. 2. Conclusion 3. Compare the Sliding Friction and the Rolling Friction. 3. The Rolling friction is than the sliding friction.

Find all points of discontinuity for the function whose graph is shown.

convert the polar equation to rectangular form and sketch the graph. r = 6 cos θ

Follow the nine-step graphing strategy to sketch the graph of the rational function. f(x) = 3 / (x^2 - 16) B. The function has no x-intercept. 6. Find the equations of any vertical asymptotes. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The vertical asymptote(s) is(are) x = -4, x = 4. (Type an equation. Use a comma to separate answers as needed.) B. The function has no vertical asymptotes. 7. Determine whether the graph has a horizontal asymptote or a slant asymptote. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The horizontal asymptote is . (Type an equation) B. The function has no horizontal asymptote. It has a slant asymptote of . (Type an equation. Type your answer in slope-intercept form.) C. The function has no horizontal asymptote and has no slant asymptote.

The accompanying scatterplot shows the number of passengers departing from an airport month by month since the start of 1997 to May of 2006. Time is shown as years since 1990, with fractional years used to represent each month. (Thus, June of 1997 is 7.5 -halfway through the 7th year after 1990.) The regression and the residuals plot are also given in the accompanying display. Complete parts a) through g). d) Would you use this model to predict the numbers of passengers in 2010 (YearsSince1990=20)? Explain. A. No, because that would extrapolate too far from the years that were observed. B. Yes, because the year 2010 is close enough to the last observed value to be a safe estimate. C. Yes, because the value of R^2 is large enough to safely predict the number of passengers. D. No, because air traffic is too random to predict for any time period. e) There's a point near the middle of this time span with a large negative residual. Can you explain this outlier? A. The negative residual is September 2001. Air traffic was artificially low following the attacks on 9/11. B. The negative residual is January 1998. The extremely high ticket prices that year caused air traffic to decline. C. The negative residual is July 1999. There is no apparent cause for the decline in air traffic. D. The negative residual is March 2004. A boom in the economy was causing higher than normal air traffic as more people were traveling abroad. f) The data has been updated through 2016 and plotted on a new scatterplot, shown to the right. If the model for the data through 2006 had been used to predict the number of passengers in 2010, how well would it have worked? Why?

The angle that something rotates during its motion is called its rotational. It is often measured in either degrees, revolutions or radians.

A data set includes weights of garbage discarded in one week from 62 different households. The paired weights of paper and glass were used to obtain the results shown to the right. Is there sufficient evidence to support the claim that there is a linear correlation between weights of discarded paper and glass? Use a significance level of α=0.05. Click here to view a table of critical values for the correlation coefficient Correlation matrix: Variables Paper Glass Paper 1 0.3543 Glass 0.3543 1 Determine the null and alternative hypotheses. H0: ρ H1: ρ (Type integers or decimals. Do not round.) Identify the correlation coefficient, r. r= (Round to three decimal places as needed.) Identify the critical value(s). (Round to three decimal places as needed.) A. There is one critical value at r= . B. There are two critical values at r= ±

Astronaut 1 has a mass of 60 kg. Astronaut 2 has a mass of 80 kg. Astro 1 and 2 want to travel to separate planets, but they want to experience the same weight (in N). Astro 1 visits a planet with gravitational acceleration 7.0 m/s^2. What must be Astro 2 planet's ag to equal Astro 1's weight? Express your answer with the appropriate units.

When you drop a 0.39 kg apple, Earth exerts a force on it that accelerates it at 9.8 m/s^2 toward the earth's surface. According to Newton's third law, the apple must exert an equal but opposite force on Earth. If the mass of the earth 5.98 x 10^24 kg, what is the magnitude of the earth's acceleration toward the apple? Answer in units of m/s^2.

Given parallel lines l and m, which of the following choices lists a pair of angles that must be congruent? F. angle 1 and angle 2 G. angle 1 and angle 3 H. angle 2 and angle 3 J. angle 2 and angle 5 K. angle 3 and angle 5

There are four fundamental forces in the universe. Which of the four forces is the strongest?

A stone is thrown straight up from the roof of a 240-ft building. The distance (in feet) of the stone from the ground at any time t (in seconds) is given by the following. h(t)=-16 t^2+32 t+240 When is the stone rising? 5<t<1 t<5 t<1 t>5 t>1 When is it falling? 1>t>5 t<5 t<1 t>1 t>5 If the stone were to miss the building, when would it hit the ground? t= sec

Bi-214 undergoes beta decay

In the overhead view of the figure, a 450 g ball with a speed v of 5.8 m/s strikes a wall at an angle θ of 41° and then rebounds with the same speed and angle. It is in contact with the wall for 14 ms. In unit-vector notation, what are (a) the impulse on the ball from the wall and (b) the average force on the wall from the ball?

Question 9 (1 point) The efficiency of normal solar panels that are available in the market is about 50% 17% 33% 75%

Find a particular solution to the differential equation using the Method of Undetermined Coefficients. x''(t)-18x'(t)+81x(t)=te^(9t) What is the auxiliary equation associated with the given differential equation? (Type an equation using r as the variable.) A solution is xp(t)=.

A piston-cylinder device initially contains 0.2 kg of steam at 200 kPa and 300 degrees C. Now, the steam is cooled at constant pressure until it is at 150 degrees C. Determine the volume change (in m^3) of the cylinder during this process.

A planet has a mass of 2.50 × 10^23 kg and a surface gravity of 4.50 m / s^2. What is the radius of the planet? [?] × 10^[?] m

Two masses are 5.60 m apart. Mass 1 is 4.17 kg and mass 2 is 3.29 kg. What is the gravitational force between the two masses? F=[?] × 10^[?] N G=6.67 × 10^-11 N · m^2 / kg^2

Problem 04.053 - Change of internal energy for neon Neon is compressed from 100 kPa and 16.00°C to 500 kPa in an isothermal compressor. Determine the change in the specific volume and specific enthalpy of neon caused by this compression. The gas constant of neon is R=0.4119 kJ / kg · K, and the constant-pressure specific heat of neon is 1.0299 kJ / kg · K. (Include a minus sign if necessary.) The change in the specific volume is m^3 / kg. (Round the final answer to four decimal places.) The change in the specific enthalpy is kJ / kg.

Question 2 Which of the following CAN you do to a vector without changing the identity of that vector (i.e., without turning it into a different vector)? Select the correct answer You can rotate it. You can invert it (i.e.,flip it over). You can enlarge it (i.e., increase its length). You can shrink it (i.e., reduce its length). You can translate it (i.e., move it left, right, up or down).

Systematic management

Your answer is incorrect. Graph the line with slope 7 and y-intercept -5.

Triangle G'H'I' is the image of triangle GHI under a translation followed by a rotation 180° about the origin. Write the rules for the translation and rotation. Translation: (x, y) -> Rotation: (x, y) -> ( ,

A -50 nC charged particle is in a uniform electric field E=(10 V / m, east). An external force moves the particle 1.0 m north, then 5.0 m east, then 2.0 m south, and finally 3.0 m west. The particle begins and ends its motion with zero velocity. a. How much work is done on it by the external force? b. What is the potential difference between the particle's final and initial positions?

List all possible values of the angular momentum quantum number l for an atomic electron with principal quantum number n = 4.

Video One, a Blu-ray disc player manufacturer, produces two models of Blu-ray players. The mini-blue, which can only play a Blu-ray disc and the media-blue that plays Blu-ray disc and contains a personal DVR. The players are assembled on two different assembly lines. Line 1 can assemble 2 units of the mini-blue model and 13 units of the media-blue model per hour, and Line 2 can assemble 4 units of the mini-blue model and 8 units of the media-blue model per hour. The company needs to produce at least 48 units of the mini-blue model and 168 units of the media-blue model to fill an order. If it costs 400 for each hour of Line 1 and 800 for each hour of Line 2. How many hours of each line should be run to minimize cost? Let x= the number of hours for Line 1 Let y= the number of hours for Line 2.

y=3 ln (x+8)/x^2 y'=

Find the derivative of the function. y = -3 e^(-5 x^2) dy/dx = □

Use integration, the Direct Comparison Test, or the Limit Comparison Test to test the integral [ int0^pi / 6 tan (3 theta) d theta ] Select the correct choice below and fill in the answer box to complete your choice. (Type an exact answer.) A. The integral converges because (int0^pi / 6 tan (3 theta) d theta=) . B. The integral diverges because (int0^pi / 6 tan (3 theta) mathrmd theta=) .

In Δ NOP, p=5.1 inches, n=6.6 inches and ∠O=18°. Find ∠P, to the nearest 10th of a degree.

Use transformations of the graph of f(x)=2^x to graph the given function. Be sure to graph and give the equation of the asymptote. Use the graph to determine the function's domain and range. If applicable, use a graphing utility to confirm your hand-drawn graphs. g(x)=2^x-2 Graph g(x)=2^x-2 and its asymptote. Use the graphing tool to graph the function as a solid curve and the asymptote as a dashed line.

Exam Lesson Name: Electricity and Electronics Exam number: 700798 R R Exam Guidelines Exam Instructions Question 16 of 20 : Select the best answer for the question. 16. Which of the following does not accurately describe the forces that exist within an atom? A. Electrons closer to the nucleus and electrons farther from the nucleus repel due to like charges. B. Electrons positioned closer to the nucleus have a greater attraction to the protons and are more likely to be discharged from the atom than electrons farther away. C. Electrons in an atom are attracted to the protons within the nucleus due to opposite charges. D. Electrons positioned farther away from the nucleus are less attracted to the nucleus than are electrons positioned closer to the nucleus. Mark for review (Will be highlighted on the review page)

What is the velocity of the mass at a time -t? Express this velocity in terms of R, ω, t, and the unit vectors î and ĵ.

En la parte más alta de un plano que forma ángulo con la horizontal de 35°, se libera un cuerpo de 80 kg de masa. La superficie está pulida, de manera que no hay rozamiento. Calcule el trabajo neto realizado hasta llegar a la horizontal, si el desnivel inicial es de h=86 cm. a. 647.2 J b. 371.2 J c. 674.2 J d. 67424 J

You are pushing a heavy box across a rough floor. When you are initially pushing the box and it is accelerating, the force you exert on the box is equal to the force of the box pushing back on you. the force you exert on the box is greater than the force of the box pushing back on you. you exert a force on the box, but the box does not exert a force on you. the force that the box exerts on you is greater than the force you exert on the box. the box is so heavy it exerts a force on you, but you do not exert a force on the box.

Exam number: 700698RR Exam Guidelines Exam Instructions Question 7 of 20 : Select the best answer for the question. 7. How does a hydraulic press with two pistons manipulate forces and pressures? A. The pressure on the small piston is greater than the pressure on the large piston, and the forces are the same. B. The pressure on the large piston is greater than the pressure on the small piston, and the forces are the same. C. The force on the large piston is greater than the force on the small piston, and the pressures are the same. D. The force on the small piston is greater than the force on the large piston, and the pressures are the same. Mark for review (Will be highlighted on the review page) «Previous Question Next Question 》

Use transformations of the absolute value function, f(x)=x, to graph the function h(x)=x-2-7. What transformations are needed in order to obtain the graph of h(x) from the graph of f(x) ? Select all that apply. A. Horizontal stretch/shrink B. Vertical shift C. Reflection about the y-axis D. Reflection about the x-axis E. Horizontal shift F. Vertical stretch/shrink

MindTap - Cengage Learning tatic/nb/ui/evo/index.html?deploymentld=5991351822008956208794324814el GAGE MINDTAP dTap Quiz: Domestic Refrigerators and Freezers signment: 1.4 MindTap Quiz: Domestic Refrigerators and Freezers ne Remaining: 1:35:28 estions sir3a09hch45.21m The type of compressor typically found on a domestic appliance is a. welded, semihermetic. b. flanged, hermetic. c. flanged, semihermetic. d. welded, hermetic.

Qual das curvas observadas no gráfico de tensão versus deformação abaixo resiste a tensões maiores antes de atingir o limite de escoamento? Explique qual o critério utilizado para embasar a sua escolha.

States of Manter Using Charles's Law An arctic weather balloon is filled with 26.1 L of helium gas inside a prep shed. The temperature inside the shed is 6 °C. The balloon is then taken outside, where the temperature is -12 °C. Calculate the new volume of the balloon. You may assume the pressure on the balloon stays constant at exactly 1 atm. Round your answer to 3 significant digits.

After an injection, the amount of a medication A, in cubic centimeters (cc), in the bloodstream decreases with time t, in hours. Suppose that under certain conditions A is given by the function below, where A0 is the initial amount of the medication. Assume that an initial amount of 90 cc is injected. Complete parts (a) through (d). A(t)= A0 / (t^2 + 1) a) Find A(0), A(1), A(2), A(8), and A(10). A(0)=90.0000

Intensity of light GRAPH B. The rate of photosynthesis depends on the concentration of carbon dioxide. As carbon dioxide increases, the rate of photosynthesis (A) decreases (B) increases

Question 9 A 220-kg object is lifted at a constant speed through a height of 42 m by a crane. The crane takes a total time of 1.8 seconds to lift this object.

Consider the following Verilog code. Which statement(s) is (are) correct? Select all that apply. ``` module M1 (F, A, B, C, D, E); output F ; input A,B,C,D,E; wire w1,w2; nor (w1,A,B); nor (w2,C,D); SubM0 M0 (F,w1,w2,E); endmodule ``` module SubM0(output y,input x1,x2,x3); assign y=(!x1) (!x2) (!x3); endmodule

A force Fapp=25 N is applied to block A of mass mA=4.5 kg which in turn pushes against the block B of mass mB=7.5 kg, as shown in the figure. If there is no friction between the blocks and the horizontal surface, what is the force exerted on block B by block A? (a) 16 N (b) 20 N (c) 25 N (d) 35 N (e) 18 N

Why do the functions f(x) = sin^(-1)(x) and g(x) = cos^(-1)(x) have different ranges?

f(x, y) = x^2 e^(-x^2-y^3) 1. fy = 2 x^3 y^2 e^(-x^2-y^3) 2. fy = 2 x^2 y^3 e^(-x^2-y^3) 3. fy = -3 x^2 y^2 e^(-x^2-y^3) 4. fy = -3 x^3 y^2 e^(-x^2-y^3) 5. fy = 3 x^2 y^2 e^(-x^2-y^3) 6. fy = -2 x^2 y^3 e^(-x^2-y^3)

Use the reflexive verb "refrescarse" in the sentence below: ¿Ustedes en el lago? A. se refrescaron B. me refresqué C. te refrescastes

A rope, attached to a weight, goes up through a pulley at the ceiling and back down to a worker. The worker holds the rope at the same height as the connection point between the rope and weight. The distance from the connection point to the ceiling is 45 ft. Suppose the worker stands directly next to the weight (i.e., a total rope length of 90 ft) and begins to walk away at a constant rate of 2 ft/s. How fast is the weight rising when the worker has walked 10 feet? ft / s How fast is the weight rising when the worker has walked 30 feet? ft / s [Note: You should consider the triangle involving the pulley, location of the worker and the original position of the weight.]

Use polar coordinates to find the volume of the given solid below the paraboloid (z=18-2 x^2-2 y^2) and above the (xy)-plane.

1.19 A spring of negligible mass has force constant k=800 N / m. (a) How far must the spring be compressed for 1.20 J of potential energy to be stored in it? (b) You place the spring vertically with one end on the floor. You then lay a 1.60 kg book on top of the spring and release the book from rest. Find the maximum distance the spring will be compressed.

Which statement about Saturn's rings is not true?

Consider the figure below. What are the angles of rotational symmetry, x, for the figure where 0°<x ≤ 360°? Enter the angles separated by commas, with deg after any value in degrees.

What does heat capacity measure? Select the correct answer below: The amount of heat required to change the temperature of a substance The temperature difference between two substances The ability of a substance to conduct heat The total energy stored in a substance

An object accelerates 8.2 m / s^2 when a force of 20.1 newtons is applied to it. What is the mass of the object?

Desde lo alto de un poste se encuentra una cuerda amarrada al piso con un ángulo de depresión de 60°. El alto del poste es 6 metros. Entonces, ¿cuál es el largo de la cuerda?

Piano music is typically notated using the staff. Select one: Grand Treble Alto Clef

Assume that a randomly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find P3, the 3rd percentile. This is the bone density score separating the bottom 3% from the top 97%. Which graph represents P3? Choose the correct graph below. A. B. C. D. The bone density score corresponding to P3 is (Round to two decimal places as needed.)

Triangles ABC and DEF are similar triangles. Solve. Round to the nearest tenth. Find the area of triangle ABC.

If a person hears a tone of 3000 Hz , three groups of neurons take turns sending the message to the brain-the first group for the first 1000 Hz , the second group for the next 1000 Hz , and a third for the next 1000 Hz . This principle is known as the a. volley principle. b. place principle. c. relay principle. d. frequency principle.

The graph below shows the function f(x). At which of the labelled points is the derivative f'(x) positive? (a) A and B (b) A and D (c) B and C (d) B and D (e) C and D

Problem 2. An inverted conical tank is 3 m tall and 1 m in diameter at its widest point. The water is being pumped out of a spout 2 m above the top of the tank. Recall that the metric density of water is ρ=1000 kg / m^3. (a) Find the work needed to empty the tank if it is full. Include units. (b) Find the work to empty half the height of the tank (assuming it is full to begin with). Make a prediction before you calculate!

Hard disks are circular disks that store data in your computer. Suppose a circular hard disk is 3.5 inches in diameter. If the disk rotates at 7100 revolutions per minute, what is the linear speed of a point on the edge of the disk (in inches per minute)? The linear speed is approximately inches per minute. (Do not round until the final answer. Then round to two decimal places as needed.)

A line passes through the point (-1,2) and has a slope of 8. Write an equation in slope-intercept form for this line.

In the mid-1400s, Gutenberg made books more accessible by using A the bookbinder. B movable type. C the fountain pen. D engraving plates.

A steep mountain is inclined 79° to the horizontal and rises 3100 ft above the surrounding plain. A cable car is to be installed from a point 900 ft from the base to the top of the mountain, as shown. Find the shortest length of cable needed. Please round the answer to the nearest integer, ft

Among 6872 cases of pacemaker malfunctions, 318 were found to be caused by firmware, which is software programmed into the device. If the firmware is tested in 3 different pacemakers from a batch of 6872 and the entire batch is accepted if there are no failures, what is the probability that the firmware in the entire batch will be accepted? Is this procedure likely to result in the entire batch being accepted?

Question 3 6.67 pts Which of the following statements would be correct regarding the following reaction? (there may be multiple correct answers) 2 H2(g) + O2(g) --> 2 H2O(g) - the rate of O2 disappearance is twice the rate of H2 disappearance. - the rate of H2 disappearance is twice the rate of O2 disappearance. - the rate of H2O appearance is equal to the rate of O2 disappearance. - the rate of H2O appearance is twice the rate of O2 disappearance.

Transcription What happens during the initiation stage of transcription? RNA polymerase makes more RNA. RNA polymerase binds to the promoter. RNA polymerase reaches the end of the gene.

Given the functions: f(x)=x^3+3 x g(x)=sqrt5 x h(x)=2 x+7 Evaluate the function (g ∘ f)(x) for x=2. Write your answer in exact simplified form. Select "Undefined" if applicable. (g ∘ f)(2) is sqrt Undefined

Find all asymptotes and/or holes in the graph of (f(x)=fracx^2-2 x-8x^2-x-6).

What is the direction of w? Round to the nearest hundredth.

Gas phase sulfur (S) and gas phase oxygen (O2) have the same molar mass. At the same temperature, they also have the same A C(v) B average KE per mole C average rotation KE per mole D average translational KE per mole

CO 3.12: Recall quantum theory terms appropriately, including wavelength, frequency, electromagnetic spectrum, wave-particle duality, deBroglie wavelength, Heisenberg uncertainty principle, Schrödinger equation, and wave function. Match the term to its corresponding definition: Term - wavelength - frequency - electromagnetic spectrum - wave-particle duality - deBroglie wavelength - Heisenberg uncertainty principle - Schrödinger equation - wave function Definitions - A function of the coordinates of an electron's position in three-dimensional space that describes the wave-like properties of the electron. - All particles also have wave-like characteristics, which are only noticeable when the particles are very small. - The wavelength of a particle is inversely proportional to its momentum and mass. - A mathematical formula used to find the allowed energy levels of atoms. - The number of cycles (waves) per second that pass a given point in space. ( v ) - The entire range of electromagnetic radiation ordered by energy. - The distance between two consecutive peaks or troughs in a wave. ( ^a ) - A principle stating that there is a fundamental limitation to how precisely both the position and momentum of a particle can be known at a given time.

Find the direction of the vector sum vec(A)+vec(B) Vector A is 17.6 m long in a 32.8° direction. Vector B is 236 m long in a 63.9° direction. direction (degrees)

¿A qué categoría corresponden los vientos de valle y montaña? (UNA RESPUESTA) (A) Vientos locales (B) Continentales

Use Newton's method with the specified initial approximation (x1) to find (x3), the third approximation to the solution of the given equation [ x^3-frac2x-x^2+1=0, quad x1=2 ]

A 708.1 Hz sound has a velocity of 1084 ft / s in the air and a velocity of 4992.9 ft / s in water. Find the wavelength of this sound in (a) air and ft (b) the water. ft

Izumi is the scorekeeper for her school's basketball team at Florida State. Throughout the season, she has wondered if there is a relationship between the number of assists and number of rebounds. She collected data for each player and created the scatter plot shown. The equation y=-0.92 x+138.21 is fit to the data Izumi collected. Select ALL the statements that are true. A. Based on the model, there will be approximately 120 rebounds when 20 assists are made. B. The number of rebounds made decreased by 0.92 for each additional assist made C. The number of assists made decreased by 0.92 for each additional rebound made. D. The y-intercept represents the number of rebounds made when the number of assists are zero. E. The y-intercept represents the number of assists made when the number of rebounds are zero.

A 9 - ft ladder leans against the side of a house. How far is the bottom of the ladder from the side of the house when the angle of elevation of the ladder is 62 degrees? Round your answer to the nearest tenth.

El gradiente altitudinal es exclusivo de la troposfera (A) Verdadero (B) Falso

The graph below shows the velocity versus time of a toy car moving across the floor. Which of the following best approximates the displacement of the car between 0 and 8 seconds? A 0 m B 10 m C -22 m D -32 m

(csc(x))^2-(cot(x))^2=

Question 15 2 pts ln 2017: Italy India GDP 1.953 trillion (in USD) 2.597 trillion (in USD) Population 60.59 million 1.339 billion GDP per capita ? ? Which country has a higher GDP per capita, and maybe a better standard of living? Libya India Italy

A balloon is filled to a volume of 1.50 L with 2.50 moles of gas at 25°C. With pressure and temperature held constant, what will be the volume of the balloon if 0.45 moles of gas are released?

Find the 47th derivative of the function f(x) = cos(x).

A 55.4 g sample of glass, which has a specific heat capacity of 0.670 J ⋅ g^-1 ⋅ °C^-1, is put into a calorimeter that contains 300.0 g of water. The temperature of the water starts off at 21.0°C. When the temperature of the water stops changing it's 23.1°C. The pressure remains constant at 1 atm. Calculate the initial temperature of the glass sample. Be sure your answer is rounded to 2 significant digits.

Temperature data from four international science institutions. All show rapid warming in the past few decades and that the last decade has been the warmest on record. Data sources: NASA's Goddard Institute for Space Studies, NOAA National Cimatic Data Center, Met Otfice Madiey CentreIClimatic Research Unit and the Japanese Meteorological Agency. Each year, scientists from several major institutions tally the temperature data collected at stations around the world and make independent judgments about whether the year was warm or cool compared to previous years. What conclusion can you draw from the data shown in the graph? There are far too many anomalies to draw any valid conclusions from the data. The world has warmed since 1880, and the last decade has been the warmest on record. Global warming is occurring due only to to human activities which lead to increases in Greenhouse gases. Although findings from the research groups vary sharply and thus contain large degrees of

Jim rides his skateboard down a ramp that is in the shape of a quarter circle with a radius of 5.00 m. At the bottom of the ramp, Jim is moving at 9.00 m/s. Jim and his skateboard have a mass of 72.1 kg. How much work is done by friction as the skateboard goes down the ramp?

Find the equation of the line that has the given properties. Contains (-6,-3); parallel to the line y=-4x-2 The equation of the parallel line is (Type your answer in slope-intercept form.)

Calculate the kinetic energies (in J) of the following. (a) a 2,002.0 kg automobile moving at 130.0 km/h J (b) an 84 kg runner sprinting at 13 m/s J (c) a 9.1 x 10^-31 kg electron moving at 2.3 x 10^7 m/s J

Según Koppen que a que tipo de clima corresponden los datos mostrados (A) Am (B) Cw (C) cm (D) Af El balance hídrico siempre tiende a cero (A) Verdadero (B) Falso

Scissor are an example of (A) First-class lever (B) Second-class lever (C) Third class lever D None of them

The picture shows four sheets of metal placed on top of snow. Each piece of metal is a different color. If the sun shines on these metal pieces for 5 hours, which color will have melted the farthest into the snow? (A) Pink (B) White (C) Brown (D) Yellow

A model rocket is launched with an initial upward velocity of 40 m/s. The rocket's height h (in meters) after t seconds is given by the following: h = 40t - 5t^2 Find all values of t for which the rocket's height is 15 meters. Round your answer(s) to the nearest hundredth. (If there is more than one answer, use the "or" button.) t = [] seconds

Pregunta 7 10 puntos ¿Con qué etapa del ciclo hidrológico se relaciona la sublimación? (UNA RESPUESTA) (A) Fusión (B) Solidificación (C) Evaporación (D) Infiiltración (E) Escorrentía

At the instant of the figure, a 1.20 kg particle P has a position vector r of magnitude 7.30 m and angle θ₁=47.0° and a velocity vector v of magnitude 4.10 m / s and angle θ₂=28.0°. Force F, of magnitude 4.70 N and angle θ₃=28.0° acts on P. All three vectors lie in the xy plane. About the origin, what are the magnitude of (a) the angular momentum of the particle and (b) the torque acting on the particle?

Find the area of the shaded region. The graph depicts the standard normal distribution of bone density scores with mean 0 and standard deviation 1. The area of the shaded region is (Round to four decimal places as needed.)

The list below shows the temperature Zachary record four days last January. Monday: -20°F Tuesday: -6°F Wednesday: -1°F Thursday: -27°F On which of the days did Zachary record the lowest temperature?

1 kN = 10 N 1 N = 10^-1 N 1 nN = 10 N 1 N = 10^-6 N

Which gate can be represented by the following ladder diagram? NOR Gate OR Gate AND Gate XOR Gate

1) Encuentre las fuerzas en los elementos DF, DG y EG. (100 puntos). a. Considere el soporte A de tipo 1 y el soporte L de tipo 2.

Calculate the voltage gain for this circuit.

Two very long currents, both of magnitude 2 A run as shown. One is flowing into the page (-z), while the other is flowing to the right (+x). Three locations (X, Y, and Z) are labeled. i. At which location is the magnitude of the total net magnetic field the lowest? A. Point X B. Point Y C. Point Z D. Points X and Y tied for lowest E. It is equal at all three points ii. In which direction is the total net magnetic field at Point Z? A. Right and Out of the page (+x,+z) B. Right and Into the page (+x,-z) C. Left and Out of the page (-x,+z) D. Left and Into the page (-x,-z)

Now apply the loop rule to loop 1 (the larger loop spanning the entire circuit). Sum the voltage changes across each circuit element around this loop going in the direction of the arrow. Express the voltage drops in terms of Vb, I1, I3, the given resistances, and any other given quantities.

The signal-to-noise ratio compares the amount of noise in the room compared to the noise the ultrasound system makes the signal's amplitude compared to the reflector's depth the amount of contamination in a signal to its meaningful information the noise in the beam former compared to the signal produced

A nucleus moving at a speed of 2.5 × 10^8 m / s crashes into a device that measures its kinetic energy to be 1.24 × 10^-9 J. What is the mass of this nucleus?

Question 14 The graph below shows one complete cycle of the graph of an equation containing a trigonometric function. Find an equation to match the graph.

Which of the following have the same direction as the average velocity? Initial position minus final position Displacement Final position minus initial position

Which of the following was the eventual result of the Allied attempts to contain Soviet expansion? Communist countries helped the Soviets expand into Western Europe. Western and Communist countries formed rival military alliances. Western countries helped to gain independence for Communist countries. Western and Communist countries agreed to unite West and East Germany.

For the given functions f and g, complete parts (a)-(h). For parts (a)-(d), also find the domain. f(x)=x-8 ; g(x)=2x^2 What is the domain of f-g? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The domain is x . (Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) B. The domain is x x is any real number .

What is the energy of a photon of yellow light whose wavelength is 489 nm? (Planck's constant, h = 6.626 x 10^-34 J . s; Speed of light = 3.0 x 10^8 m / s) 3.38 x 10^-28 J 4.07 x 10^-19 J 5.09 x 10^5 J 3.37 x 10^-19 J 3.37 x 10^-10 J

Question 16 (1 point) An object is thrown from the top of a building. The following data measure the height of the object from the ground for a five second period. Calculate the correlation coefficient using technology (you can copy and paste the data into Excel). Round answer to 4 decimal places. Make sure you put the 0 in front of the decimal. Seconds Height 0.5 112.5 1 110.875 1.5 106.8 2 100.275 2.5 91.3 3 79.875 3.5 70.083 4 59.83 4.5 30.65 5

Si en un circuito en paralelo, la resistencia de R1 es de 18 Ω y la de R2 es de 36 Ω, ¿cuál es la resistencia total del circuito?

Question 3 For a building located in State College, PA - Tin = 70 F - Tout = 10 F - Peak heat loss - 12,000 Btu/hr - Electricity as the fuel for heating - 95% efficiency and 0.08 / kWh - HDD - 5,964 Calculate Aref Question 4 For the same question above, calculate annual heating energy use Btu Question 5 For the same question above, considering the fuel source - electricity, please calculate the energy cost () for annual heating

(12) In the opposite electric circuit, the reading of the voltmeter is (a) 20 V (b) 15 V (c) 5 V (d) 0

(ii) 두 직선 l, l' 이 평행할 때, m=m', n ≠ n' (iii) 두 직선 l, l' 이 일치할 때, m=m', n=n' 예3 두 직선 y=ax-4, y=bx-b 가 일치할 때, 상수 a, b 에 대하여 a+b 의 값을 구하시오. 확인03 두 직선 y=3x+4, y=ax+3 이 평행할 때, 상수 a 의 값을 구하시오. 개념 (4) 두 직선 y=mx+n, y=m'x+n' 이 수직일 조건

Given the following circuit where V5=5, IT=20 mA, and P2=42 mW, find P1, the power dissipated in resistor R1.

QUESTION 3 REFER TO THE POTENTIAL ENERGY DIAGRAM HERE, WHICH REFERS TO STANDARD CONDITIONS. IF WE INCREASE THE CONCENTRATION OF A AND B, WITHOUT INCREASING THE CONCENTRATION OF C AND D: A. THE ΔG OF THE REACTION WILL BE A LARGER POSITIVE NUMBER B. THE ΔG OF THE REACTION WILL BE A LARGER NEGATIVE NUMBER C. THE RELATIVE CONCENTRATIONS OF A+B VS C+D AT EQUILIBRIUM WILL CHANGE D. THE ENERGY OF THE TRANSITION STATE WILL RISE E. ONLY A AND C ARE TRUE

Find the vector equation that represents the curve of intersection of the cylinder (x^2+y^2=4) and the surface (z=xe^y). Write the equation so the (x(t)) term contains a (cos (t)) term. (x(t)=) (y(t)=) (z(t)=)

Since the elevator in the previous problem travels with constant velocity v=4.0 m/s, it takes a total time Δt=7.5 s to travel the full 30 m. Using your answer from the previous question for the work done, calculate the average power that the motor must deliver to lift the elevator and the passenger. (Round your answer to the first decimal place). P=81619.2 W P=97619.2 W P=76285.9 W P=65619.2 W

Find the equation of the tangent plane to the surface z+5=xe^y cos z at the point (5,0,0). x+y-z=5 x+y-5 z=5 5 x+y-z=5 x+5 y-z=5 x+5 y+z=5

An electric current is a . - stationary charge - flowing or moving charge - resistance to the flow of electrons - molecule or atom that attracts electrons

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