Problem: In order better to map the surface features of the Moon, a 355-kg imaging satellite is put into circular orbit around the Moon at an altitude of 1.27 × 102 km. The radius and mass of the Moon are 1.74 × 103 km and 7.36 × 1022 kg.
Part A: Calculate the satellite\'s kinetic energy, gravitational potential energy, and total orbital energy.
I am having a hard time understanding these questions. So if you answer please explain how you found the answers.