If the earth shrinks such that its mass does not change but radius decreases to one quarter of its original value then one complete day will take...

The weight of a body on surface of earth is 12.6 N. When it is raised to a height half the radius of earth, its weight will be

A body of mass m is thrown vertically upward with speed $$\sqrt3$$ ve, where ve is the escape velocity of a body from earth surface. The final velocit...

An ideal gas of molar mass M is contained in a very tall vertical cylindrical column in the uniform gravitational field. Assuming the gas temperature ...

Assume that the earth moves around the sun in a circular orbit of radius R and there exists a planet which also move around the sun in a circular orbi...

The ratio of accelerations due to gravity g1 : g2 on the surfaces of two planets is 5 : 2 and the ratio of their respective average densities $${{\rho...