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Weight on a Neutron Star

  1. Nov 6, 2007 #1
    1. The problem statement, all variables and given/known data

    Neutron stars, such as the one at the center of the Crab Nebula, have about the same mass as our sun but a much smaller diameter.

    If you weigh 675 N on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 16.0 km?

    Take the mass of the sun to be = 1.99×1030kg , the gravitational constant to be G= 6.67×10−11 , and the acceleration due to gravity at the earth's surface to be g = 9.81

    2. Relevant equations


    I think??

    3. The attempt at a solution

    well I have not attempted it because the equation I have doesn't make sense when you include R_E^2 so I am unsure of the proper formulas??
  2. jcsd
  3. Nov 6, 2007 #2
    You need to change the M_e to M_n, the mass of the neutron star, and R_e to R_n, the radius of the neutron star. Everything should then work out fine.
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