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Astronomy

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Show that Kepler's third law is consistent (approximately) for the orbits of the Mars
and Saturn. Show all your calculations and appropriate units.

P Mars = 690 days; a Mars = 2.3 x 108 km
P Saturn = 10,700 days; a Saturn = 1.4 x 109 km

  • Astronomy - ,

    Please place a ^ before your exponents.

    You can prove Kepler's third law is obeyed in this case by showing that the ratio P^2/a^3 is the same for both planets.

    You can use any units you want, as long as they are the same for both planets.

    If you need a review of this subject, see
    http://en.wikipedia.org/wiki/Kepler's_laws_of_planetary_motion
    or many other easily Googled sites.

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