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30-10-2014
Physics

Answered

If planet A is four times as far from the sun as planet C, then the period of its orbit will be__ times as long

Answer :

30-10-2014

Within the system of the same star, the period of a planet's orbit is
proportional to the 3/2 power of its distance from the central body.
(Kepler's empirical third law of planetary motion, promoted to being
etched in stone by Newton's gravitation.)

(4) ^ 3/2 = 8 times as long.

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