Chapter 9: Gravitation
Online Concept Tutorials
Circular Orbits
This tutorial treats circular orbits by setting gravitational force and centripetal force equal to each other. It derives relations between mass, orbital period, orbital radius, and orbital velocity, including Kepler’s Third Law.
Kepler’s Laws
This tutorial states all three of Kepler’s laws. It illustrates them with various examples and shows how to use them to solve problems involving orbital velocity and orbital period.
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