Earth's escape velocity is –

The earth's part responsible for causing earthquakes is :

The mass of a body on the Earth is 100 kg, then the mass of the body on the Moon is :

The acceleration due to gravity at the Earth’s surface depends on

A ball is dropped from the top of a high building . What will be its velocity after 3 seconds?

Satellite is kept moving in its orbit around the Earth; it is due to –