Question

Put a satellite in circular orbit about a planetX at an altitude of one planet X radius above the surface of the planet X. you want to change the orbit to an altitude of 2 planet X radii about the surface of planet X. How much work does the satellites engine have to do for this change?

Given:

Planet X:

no atmosphere

mass- 4*10^24 kg

radius 6*10^6 m

satellite

mass 700kg

Answer #1

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