Question: Question 2 0 . 0 5 pts Taking the zero of potential energy to be at the infinite separation of two masses, consider the energy

Question

2

0.05

pts

Taking the zero of potential energy to be at the infinite separation of two masses, consider the energy of a body in circular planetary motion. Which of the following statements is valid?

None of these is valid.

The potential energy of the system decreases as the radius of the orbit increases.

The total mechanical energy of the system is constant and negative.

The total mechanical energy of the system is constant and positive.

The potential energy of the system is equal to the kinetic energy but opposite in sign.

Question 2 0 . 0 5 pts Taking the zero of

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