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1. A certain satellite travels in an approximately circular orbit of radius 7.5 × 106 m...

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Physics

1. A certain satellite travels in an approximately circularorbit of radius 7.5 × 106 m with a period of 6 h 27 min.Calculate the mass of its planet from this information

2. (a) At what height above Earth's surface isthe energy required to lift a satellite to that height equal to thekinetic energy required for the satellite to be in orbit at thatheight? (b) For greater heights, which is greater,the energy for lifting or the kinetic energy for orbiting?

Please help:)

Answer & Explanation Solved by verified expert
3.9 Ratings (692 Votes)
Here let the mass of planet is M 1 radius of orbit r 75 106 m time period of planet T 6 h 27 min as the period of planet is given as T2r3 4pi2G M 6 3600 27 60275    See Answer
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