What is the gravitational potential at infinity?

Define gravitational potential.

Define gravitational potential at a point

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?

What is gravitational potential energy at a point? How much of work is done in shifting mass from the surface to a height equal to its radius?

What is the gravitational field at a point inside a spherical shell?

what is gravitational force ?

What is the relation between gravitational intersity and gravitational potential at a point?

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

What is the unit of water potential?