Writing Errands

Communications satellites are placed in circular orbits where they stay directly over a fixed point on the equator as the earth rotates. These are called geosynchronous orbits. The altitude of a geosynchronous orbit is 3.58×107 m (≈ 22,000 miles).
(a) What is the period of a satellite in a geosynchronous orbit?
(b) Find the value of g at this altitude.

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