Two satellites orbiting around the earth have their critical speeds in the ratio 4 : 5. What is the ratio of their orbital radii ?

A satellite revolves around the earth in an elliptical orbit. Its speed is

A satellite revolves around the earth in an elliptical orbit. Its speed is

Satellites A and B are orbiting around the earth in orbits of ratio R and 4R respectively. The ratio of their areal velocities is-

Two satellite revolving around a planet in the same orbit have the ratio of their masses m_1/m_2 =1/4 The ratio of their orbital velocities v_1/v_2= ....