In the broadest sense, what was the kinectic molecular theory designed to explain?

Kinetic Molecular Theory claims that gas particles are in continuous motion and completely demonstrate elastic collisions. Kinetic Molecular Theory can be used to describe the rules of both Charles and Boyle. A series of gas particles only has an average kinetic energy that is directly proportional to absolute temperature.

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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an electric circuit