What is the orbital velocity for a satellite orbiting close to the surface of earth?

How does the orbital velocity of a satellite depend on the mass of the satellite?

What is orbital velocity? Derive it expression.

What is molecular orbital?

What is parking orbit?

What is the work done by the force of gravity on a satellite moving round the earth? Justify your answer.

If the earth stops rotating about its own axis, what is the effect on the value of weight of any object on the surface of earth?

How escape velocity is related to orbital velocity for orbit close to earth?

Deduce the relation between the orbital velocity of a body moving round the earth just over its surface and its escape velocity.

The escape velocity from the earth is V. What is the escape velocity from a planet whose mass and radius is twice those of the earth ?