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OpenStudy (anonymous):
At a particular point, a satellite in an elliptical orbit has a gravitational potential energy of 7000 MJ with respect to Earth's surface and a kinetic energy of 4000 MJ. At another point in it's orbit, the satellite's potential energy is 2000 MJ. What is its kinetic energy at that point?
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OpenStudy (anonymous):
according to the law of conservation of energy KE + PE = constant
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