Circular Motion Problems ANSWERS
Dec 11, 2012 · Kepler’s third law of planetary motion. Phobos: r=9400 km T=7.66 hours Deimos: r=23,500 km T=30.4 hours (T2/r3) = 7.06x10-11 hr2/km3 (phobos) (T2/r3) = 7.12x10-11 hr2/km3 (deimos) Since only 2 significant digits were given for the orbital radius of Phobos we can conclude that the data ARE consistent with Kepler’s Third Law 12.
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