1.

State the value of potential energy of an object on the surface of earth.

Answer»

★᭄ꦿ᭄Answer★᭄ꦿ᭄

Near the surface of the Earth, the WORK DONE in lifting an OBJECT through a height h is the product mgh , so U=mgh . The gravitational potential energy, U , of a system of masses m1 and M2 at a distance r using gravitational constant G is U=−Gm1M2r U = − G m 1 M 2 r .



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