The net amount of work done on planet by the star’s gravitational force if it moves at constant speed in circular orbit and also if it moves in elliptical orbit so that the speed is not constant.

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Chapter 13, Problem Q13.11DQ

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The net amount of work done on planet by the star’s gravitational force if it moves at constant speed in circular orbit and also if it moves in elliptical orbit so that the speed is not constant.

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