Question: A 200-kg communications satellite is placed into a circular orbit around Earth with a radius of 4.23 x 10 7 m (26,300miles). (a) Find the

A 200-kg communications satellite is placed into a circular orbit around Earth with a radius of 4.23 x 10⁷m (26,300miles).

North Pole Earth

(a) Find the gravitational force on the satellite. (There is some useful information in Section 2.7.)
(b) Use the equation for centripetal force to compute the speed of the satellite.
(c) Show that the period of the satellite€”the time it takes to complete one orbit€”is 1 day. (The distance it travels during one orbit is 2Ï€, or 6.28, times the radius.) This is a geosynchronous orbit: the satellite stays above a fixed point on Earth€™s equator.

North Pole Earth

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