A satellite is launched with an initial velocity = 4000 km/h parallel to the surface of...

A satellite is launched with an initial velocity = 4000 km/h parallel to the surface of the earth. Determine the required altitude (or range of altitudes) above the earth's surface for launching if the free-flight trajectory is to be (a) circular, (b) parabolic, (c) elliptical, and (d) hyperbolic.