A communications satellite is to be placed into an equatorial circular orbit around the earth so that it always remains directly over a point on the earth’s surface. If this requires the period T (approximately), determine the radius of the orbit and the satellite’s velocity.

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Units Used: Given: Mm = 10 km T = 24 hr G = 66.73 x 10 -12 3 m 2 kg.s Me = 5.976 × 1024 kg