A satellite orbits the earth at a height equal to the radius of earth. Find its
orbital speed

A satellite orbits the earth at a height equal to the radius of earth. Find its Period of revolution.

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

A satellite is a taken to a height equal to the radius of the Earth and then projected horizontally with a speed of 7km/s . State the nature of its orbit.