An astronaut wants to find out how much she would weigh on a variety of moons. On Earth, she measures her mass as $82\,\text{kg}$. She looks up the values of $g$ on different moons and uses these values to work out her weight. The outcomes are shown. Which weight has been worked out correctly?
- ACallisto, $g = 1.2\,\text{N kg}^{-1}$, calculated weight $= 68\,\text{N}$
- BCharon, $g = 0.28\,\text{N kg}^{-1}$, calculated weight $= 23\,\text{N}$
- CDione, $g = 0.23\,\text{N kg}^{-1}$, calculated weight $= 2.3\,\text{N}$
- DUmbriel, $g = 0.23\,\text{N kg}^{-1}$, calculated weight $= 0.0028\,\text{N}$