Solve the below problem:
Q: A satellite of mass m describes a circular orbit of radius r about the earth. Express as a function of r
(a) The potential energy of the satellite,
(b) Its kinetic energy,
(c) Its total energy. Denote the radius of the earth by R and the acceleration of gravity at the surface of the earth by g, and assume that the potential energy of the satellite is zero on its launching pad.