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Write the three law given kepler? |
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Answer» There are ACTUALLY three, Kepler’s LAWS that is, of planetary MOTION: 1) every planet’s orbit is an ellipse with the Sun at a focus; 2) a line joining the Sun and a planet sweeps out equal areas in equal times; and 3) the square of a planet’s orbital PERIOD is proportional to the cube of the semi-major axis of its orbit. As it’s the third which is most often used, Kepler’s law usually means Kepler’s third law (of planetary motion). |
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