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A mysterious new planet has a radius of R = 6800 kilometers. In order to take...

A mysterious new planet has a radius of R = 6800 kilometers. In order to take pictures of the surface of the planet, you launch a satelite into a circular orbit at an altitude of h = 900 kilometers above the surface of the planet. You measure the period of the orbit to be 3.75 Hours.
A) What is the mass of the planet, in Kilograms?
B) Suppose the satelite was launched at an altitude of h = 7800 kilometers above the surface of the planet. What would the period be in this case? Give your answer in units of hours.

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