To convert kilometers to meters, multiply by 1,000 (since 1 km = 1,000 m).
\[
5.6 \, \text{km} \times 1,000 = 5,600 \, \text{m}
\]
To convert millimeters to micrometers, multiply by 1,000 (since 1 mm = 1,000 \(\mu m\)).
\[
0.75 \, \text{mm} \times 1,000 = 750 \, \mu m
\]
To convert grams to kilograms, divide by 1,000 (since 1,000 g = 1 kg).
\[
100 \, \text{g} \div 1,000 = 0.1 \, \text{kg}
\]
- 5.6 km to meters: \(\boxed{5,600 \, \text{m}}\)
- 0.75 mm to micrometers: \(\boxed{750 \, \mu m}\)
- 100 g to kilograms: \(\boxed{0.1 \, \text{kg}}\)