Questions: 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

Solution Steps

The question asks why we do not observe tides in a community swimming pool. It provides five possible reasons, and we need to determine the correct one.

1. The tides are only observed at night: This is incorrect because tides occur due to gravitational forces and are not limited to nighttime.
2. It is shallow compared to the ocean: While the depth of the pool is different from the ocean, this is not the primary reason for the absence of observable tides.
3. Gravitation on the small mass of water is negligibly small: This is incorrect because gravitational forces act on all masses, regardless of size.
4. They are masked by the much stronger pull of Earth gravity: This is incorrect because tides are a result of the gravitational pull of the Moon and the Sun, which act in addition to Earth's gravity.
5. All parts of it are practically the same distance from the Moon: This is correct because the tidal forces depend on the difference in gravitational pull across the body of water. In a small pool, this difference is negligible.

Based on the analysis, the correct reason is that all parts of the swimming pool are practically the same distance from the Moon, making the tidal forces negligible.

Final Answer