Question

Energy is required to move a 1590 kg mass from the Earth’s surface to an altitude 2.59 times the Earth’s radius RE. (RE=6.37 × 106 m) What amount of energy is required to accomplish this move?

Answer in units of J.

Answer 1

Solution: - Re Energy at the surface of earth = U; = - G Mem Energy at 2.59 Re above the earth = Nf = - Glem Ret 2.59 Re 40=UA-U - Uf = - G Mem 3.59 Re Total energy seasured to accomplish is AU = - Glem + Ghem C 3.59 Re Re sue cream (**) = 6.67 X10-12 x 1590 X 5.97 X1024 x 0.721 6:37 X 106 = 7.166.27 x 1016 : 7.17 x 1019 J AU