Physics · Gravitation

An object of mass 3.60 kg is released by an astronaut into a circular orbit about the Earth at an altitude of 700 km. The mechanical energy of the object in its orbit is (Given: Radius of the Earth RE = 6370 km, mass of the Earth ME = 5.98 × 1024 kg, Universal gravitational constant G = 6.67 × 10-11 N·m2/kg2):

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