Derive an expression for gravitational potential energy of a body at a distance r from earth.

Derive an expression for Gravitational potential above the surface of the earth.

Derive an expression for kinetic energy of Rolling Motion.

At what height above the surface of the earth is the gravitational potential energy of a body equal to that on the surface of the moon ? Assume that the mass of the earth is 80 times that of the moon and the radius of the earth is 4 times that of the moon. Given ,Radius of the earth =6400 km.

Find the expression of potential energy of a charge conductor.

Deduce an expression for the potential energy stored in a parallel plate capacitor.

The change in the gravitational potential energy when a body of mass m is raised to a height nR above the surface of the earth is (here R is the radius of the earth)

Deduce an expression from the potential energy stored in a parallel plate capacitor.

Derive an expression for acceleration due to gravity at a depth d from earth's surface . Is it increases or decreases.