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Newton's Law.

  1. Oct 10, 2007 #1
    1. The problem statement, all variables and given/known data

    The mass of the moon is 7.35 x 10^22 kg and its distance from the earth is 3.84 x 10^5 km. Taking earths mass to be 5.98 x 10^24, calculate what newton called "the force resquisite to keep the moon in her orb."

    mass of moon = 7.35 x 10^22 kg
    distance from earth= 3.84 x 10^5 km
    earths mass = 5.98 x 10^24

    3. The attempt at a solution

    First of all, i would like to know what Newton called "the force resquisite to keep the moon in her orb." means. Then maybe i will be able to figure out what the question is asking.
  2. jcsd
  3. Oct 10, 2007 #2
    Force=Gravitational constant*mass of the Earth*Mass of the moon/distance between them, squared.

    I think this is the force in question.
    Last edited: Oct 10, 2007
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