posted by adrian .
An 884 kg satellite in orbit around a planet has a gravitational potential energy of -5.44*10^10 J.
The orbital radius of the satellite is 8.52*10^6 m and its speed is 7.84*10^3 m/s.
A) What is the mass of the planet?
B) What is the kinetic energy of the satellite?
C) What is the total energy of the satellite.