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An artificial satellite moving in a circular orbit around the earth has a total (kinetic + potential) energy

An artificial satellite moving in a circular orbit around the earth has a total (kinetic + potential) energy  E0. Its potential energy is

(a) – E0                                       (b) 1.5 E0

(c)  2 E0                                  (d) E0

Answer: c

(7)

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