Lecture 22, #2:  A satellite is orbiting the Earth at a height 300 km above the surface of the Earth. How long does it take to circle the planet? Answer this two ways: (a) Use Kepler's laws and compare the orbit of the satellite with that of the Moon; and (b) Use Newton's second law in conjunction with the universal law of gravitation.

n.b. This is a lengthly problem and the video is split into 2 parts, the second beginning after Professor Solomon erases the board.