Solve the following examples / numerical problems:
If the body performs uniform circular motion around the earth at a height of 3600 km from the earth's surface, what will be its gravitational potential energy ?

Solve the following examples / numerical problems: A satellite of mass 100 kg performs uniform circular motion around the earth at a height of 6400 km from the earth's surface . Find its gravitational potential energy. [g=9.8 m/s^2, R=6400 km]

Satellite revolving around the earth at a height of 400 Km above the earth's surface has a time period of about

Solve the following examples / numerical problems: If the weight of a body on the surface of the moon is 100 N , what is its mass ?

Solve the following examples / numerical problems: Assuming that the earth performs uniform circular motion around the Sun, find the centripetal acceleration of the earth. [Speed of the earth =3 xx10^4 m/s, distance between the earth and the Sun= 1.5xx10^11 m]

Calculate the acceleration due to gravity at a height of 300 km from the surface of the Earth

Solve the following examples/numerical problems : If the mass of a planet is eight times the mass of the earth and its radius is twice the radius of the earth, what will be the ratio of the escape velocity on the earth to the escape velocity on the planet?

An artificial satellite is at a height of 35780 km .from the earth's surface. What is the period of revolution of this satellite?

Solve the following examples / numerical problems: A body of mass 20 kg is at rest on the earth's surface. (i) Find its gravitational potential energy. (ii) Find the kinetic energy to be provided to the body to make it free from the gravitational influence of the earth. (g=9.8 m/s^2, R=6400km)