Question: In another solar system a planet has twice the earth's mass and three times the earth's radius. Your weight on this planet is ________ times

In another solar system a planet has twice the earth's mass and three times the earth's radius. Your weight on this planet is ________ times your earth-weight. Assume that the masses of the earth and of the other planet are uniformly distributed.
(a) 0.667
(b) 2.000
(c) 0.111
(d) 0.444
(e) 0.222

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