Two satellites of same mass are orbiting round the earth at heights of `r_1` and `r_2` from the centre of earth. Their kinetic energies are in the ratio of :

Two satellite of the same mass are orbiting round the earth at height f R and 4R above the earth's surface, R being the radius of the earth. Then their kinetic energies are in the ratio of

A satellite of mass , os revolving round the eartj at height of 10R , where R is the radius of earth. What is the kinetic energy of satellite.

Two satellites of identical masses orbit the Earth at different heights. The ratio of their distance from the centre of earth is d : 1 and the ratio of the acceleration due to gravity at those heights is g : 1. Then the ratio of their orbital velocities is ________ .