An Earth Satellite Moves In A Circular Orbit At A Speed Of 5500 m/s.

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An earth satellite moves in a circular orbit at a speed of 5500 m/s. What is its orbit period?

Answer: T = 4.19 h

Explanation

Givens:

When a satellite is orbiting the Earth, the only force that is acting on it is the gravitational force between them.

Notice that Rs is the radius of the satellite orbit.

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