The binding energy of a satellite of mass 80Kg revolving in an orbit close to the Earth's surface (M=6×1024Kg,R=6.4×106m)
A satellite orbits the earth at a height of 400 km above the surface. How much energy must be expended to rocket the satellite out of the earth’s gravitational influence? Mass of the satellite = 200 kg; mass of the earth = 6.0 ×1024 kg; radius of the earth = 6.4 ×106 m; G = 6.67 × 10–11 N m2 kg–2.