Question 8

Let the gravitational potential energy, U, of an earth-satellite system be defined as zero for infinite separation of the two bodies. If the satellite is in an eccentric orbit, there may be two points in the orbit, a and b, such that U(a)/U(b) = +3.

The kinetic energy of the satellite at point a is

• A.   Greater than at point b
• B.   Less than at point b
• C.   The same as at point b
• D.   More negative than at point b

Formula Sheet

Question 7

Question 9

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