What is the potential energy u of the satellite

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Reference no: EM132110042

Question: This problem concerns the properties of circular orbits for a satellite of mass m orbiting a planet of mass M in an almost circular orbit of radius r.

In doing this problem, you are to assume that the planet has an atmosphere that causes a small drag due to air resistance. "Small" means that there is little change during each orbit so that the orbit remains nearly circular, but the radius can change slowly with time.

The following questions will ask about the net effects of drag and gravity on the satellite's motion, under the assumption that the satellite's orbit stays nearly circular. Use G if necessary for the universal gravitational constant.

1) What is the potential energy U of the satellite? Express your answer in terms of m , M , G , and r .

2) What is the kinetic energy K of the satellite? Express the kinetic energy in terms of m , M , G , and r .

Reference no: EM132110042

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