A 150-kg satellite is in a 310-km altitude stable circular orbit around earth. What is its orbital kinetic energy? a) 4.46*107 J. b) 4.46*1011 J.                                c) 4.46*109 J. Data: mass of earth = 5.97*1024 kg, radius of earth = 6380 km, G = 6.67*10-11.

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