(Answered) A calculate the acceleration due to gravity your weight and

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a) Calculate the acceleration due to gravity, your weight and your escape velocity for each planet in the solar system and Earth's moon. (Hint: use a spread sheet).

b) Just by looking at the dataset that you have produced explain why the Moon has no atmosphere.

c) How massive would a "planet" of radius 30km have to be before nothing, not even light, could not escape from it?
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