(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. The radius of the earth is 6.37 x 10^{6}m, and the altitude of a geosynchronous orbit is 3.58 x 10^{7}m. What are (a) the speed and (b) the magnitude of the acceleration of a satellite in a geosynchronous orbit?

2. Relevant equations

M (mass of the earth) = 5.98 x 10^{24}

G (gravitational constant) = 6.67 x10^{-11}

GMm = mv^{2}

r^{2}........ r

3. The attempt at a solution

I understand the problem and how to get the answer. I just do not understand where the units go on the above formula and where it is derived from.

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# Homework Help: Geosynchronous Orbits

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