1) When comparing mass and size data for the planets Earth and Jupiter, it is observed that Jupiter is about 300 times more massive than Earth. One might quickly conclude that an object on the surface of Jupiter would weigh 300 times more than on the surface of the Earth. For instance, one might expect a person who weighs 500 N on Earth would weigh 150000 N on the surface of Jupiter. Yet this is not the case. In fact, a 500-N person on Earth weighs about 1500 N on the surface of Jupiter. Explain how this can be. (include the correct sig figs).

2) If the gravitational force exerted by the Moon on an astronaut landed on the Moon is 113.6 N, what is the mass of the astronaut? (M_Moon = 7.3483 x 10²² kg, R_Moon = 1.7374 x 10⁶ m)