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An artificial Earth satellite has a mass of 2.0 x 103 kg an travels in an elliptical orbit at an average altitude of 400

An artificial Earth satellite has a mass of 2.0 x 103 kg an travels in an elliptical orbit at an average altitude of 400 km a) What is the average value of the gravitational potential in orbit? b) What is the average kinetic energy? c) What is its total energy d) Find its speed at its nearest point from Earth 280 km.

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