One model for a certain planet has a core of radius R and
Chapter , Problem 23(choose chapter or problem)
One model for a certain planet has a core of radius R and mass M surrounded by an outer shell of inner radius R, outer radius 2R, and mass 4M. If M ! 4.1 $ 1024 kg and R ! 6.0 $ 106 m, what is the gravitational acceleration of a particle at points (a) R and (b) 3R from the center of the planet?
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