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Homework Help: Gravitational force

  1. Mar 8, 2005 #1
    In introductory physics laboratories, a typical
    Cavendish balance for measuring the gravita-
    tional constant G uses lead spheres of masses
    1.8 kg and 13.9 g whose centers are separated
    by 5.77 cm.
    Calculate the gravitational force between
    these spheres, treating each as a point mass
    located at the center of the sphere. Use G =
    6.67259 x 10^11 N m^2/kg^2.
  2. jcsd
  3. Mar 8, 2005 #2

    Andrew Mason

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    Science Advisor
    Homework Helper

    Do you know how to determine the gravitational force between two bodies using Newton's Law of Universal Gravitation?

  4. Mar 8, 2005 #3
    Your G is wrong, the power of 10 should be -11.
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