what were keplers laws
Kepler's laws are:
The orbit of every planet is an ellipse with the Sun at one of the two foci.
A line joining a planet and the Sun sweeps out equal areas during equal intervals of time.
The square of the orbital period of a planet is directly [ proportional to the cube of the semi-major axis of its orbit. ]
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Asked 9/4/2012 10:41:41 AM
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