A satellite orbits the earth at a height of 1000 km. Find orbital speed.

A satellite orbits the earth at a height of R/6 , its orbital speed ?

A satellite is orbiting the earth at a height of 20000 km from the surface of the earth . Determine the tangential velocity of the satellite.

An artificial satellite revolves round the earth at a height of 1000 km . The radius of the earth is 6.38xx10^(3)km . Mass of the earth 6xx10^(24)kg,G=6.67xx10^(-11)Nm^(2)kg^(-2) . Find the orbital speed and period of revolution of the satellite.