3) Given five planets in another solar system. Their mass and radius are: Planet A: M...

Question

Question

Answer 1

Answer #1

g = GM(planet)/Radius^2

Thus,

g(A) = GM/(2R) ^2 = GM/4R^2

g(B) = G(2M)/R^2 = 2GM/R^2

g(C) = G(4M)/(2R)^2 = GM/R^2

g(D) = GM/R^2

g(E) = G(2M)/(3R)^2 = 2GM/9R^2

Thus, the order will be:

B>C=D>A>E

Answer 2

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