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December 20, 2014

December 20, 2014

Posted by **Kathy** on Sunday, April 21, 2013 at 11:15pm.

A neutron star and a black hole are 2.400e+12 m from each other at a certain point in their orbit. The neutron star has a mass of 2.78×1030 kg and the black hole has a mass of 9.94×1030 kg. What is the magnitude of the gravitational attraction between the two?

_________ N

- physics (Newton -
**drwls**, Sunday, April 21, 2013 at 11:40pmUse the same Newtonian formula that you would use for any other pair if masses, M1 and M2.

F = G*M1*M2/R^2

G is the universal constant of gravity, 6.67*10^-11 N*m^2/kg^2

F is the force

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