What is the value of gravitational intensity at the surface of Earth and at the Earth's centre?

Gravitational intensity of centre of earth is …...

A satellite of mass m is revolving around the Earth at a height R above the surface of the Earth. If g is the gravitational intensity at the Earth’s surface and R is the radius of the Earth, then the kinetic energy of the satellite will be:

A satellite of mass m is revolving around the Earth at a height R above the surface of the Earth. If g is the gravitational intensity at the Earth’s surface and R is the radius of the Earth, then the kinetic energy of the satellite will be:

A satellite of mass m is revolving around the Earth at a height R above the surface of the Earth. If g is the gravitational intensity at the Earth’s surface and R is the radius of the Earth, then the kinetic energy of the satellite will be:

The gravitational potential at centre of earth is

What is meant by gravitational field intensity at a point due to the Earth ?

What is the value of g at the centre of the Earth?