posted by Roger .
A 20000 kg satellite is launched from the surface of saturn and put into orbit.The satellite is launched at the speed of 27.5 x 10^3 m/s.
a)calculte the satellite's total energy.
b)Its orbital radius
c)If the satellite was shot straight up at the same speed, find its maximum altitude
d)how much energy does the satellite need to escape from the saturn's gravitational pull.