Consider the orbital motion of a planet going around the Sun. Which of the following statements about the motion is true？

A、Only the mechanical energy of planet is conserved.

B、Only the angular momentum of planet is conserved.

C、Both the angular momentum and mechanical energy of planet are conserved.

D、Neithor of the angular momentum or mechanical energy of planet is conserved.

提问人：网友huihui2310 发布时间：2022-01-07

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