what is gravitational force ?

what is the range of gravitational force ?

What is the gravitational force on a body inside a spherical shell? Why is it so?

A body weighs 63 N on the surface of the earth. What is the gravitational force on it due to the earth at a height equal to half the radius of the earth?

The masses of two bodies are m_1 and m_2 the distance between them is d. What is the gravitational force between them?

‘What is the work done by earth's gravitational force in keeping the moon in its orbit?

Two heavy spheres each of mass 100 kg and radius 0.10 m are placed 1.0 m apart on a horizontal table. What is the gravitational force and potential at the mid point of the line joining the centers of the spheres? Is an object placed at that point in equilibrium? If so, is the equilibrium stable or unstable?

An artificial satellite is at a height of 36,500 km above earth's surface. What is the work done by earth’s gravitational force in keeping it in its orbit?

A rocket is fired from the earth towards the sun. At what distance form the earth's centre is the gravitational force on the rocket zero? Mass of the sun = 2 xx 10^20 kg and mass of earth = 6 xx 10^24 kg and orbital radius 1.5 xx 10^-8 km.

Give two characteristics of gravitational force.

What do we call the gravitational force between the earth and an object?