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A planet orbits a sun in a clockwise elliptical orbit as shown in the diagram below
Bubble in the letter representing the position or choose e if it is constant

At which position does the planet have the greatest gravitational energy?

A planet orbits a sun in a clockwise elliptical orbit as shown in the diagram below Bubble in the letter representing the position or choose e if it is constant class=

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Answer:

Greatest gravitational energy is at "C".

The planet has to do work "against" the field to get to "C".

Also, if m v R (angular momentum) is constant then as R increases v must decrease for this term to be constant and KE = 1/2 M v^2  must decrease also to get to point C.

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