An unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 56.0 km. To the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 16.0 m/s.
If nothing is done to...
When in orbit, a communication satellite attracts the Earth with a force of F and the earth-satellite gravitational potential energy (relative to zero at infinite separation) is - U. The radius of Earth is assumed to be r.
How do I find the satellite's altitude above the Earth's surface and...