Satellite a orbits the earth at a height 3.00 times the earth's radius. satellite b orbits the earth at a height 2.00 times the earth's radius. what is the ratio of the period of satellite b to the period of satellite a?

a) 1 to √(3/2)^3

b) 1 to 3√(3/2)^2

c) 1 to √(2/3)^3

d) 1 to 3√(2/3)^2

*the "3√" represents a cubic root*
i think the answer is b, but i am not sure

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