Homework Help: physics/math

Posted by HP on Friday, March 22, 2013 at 2:25pm.

Calculate the magnitude of the gravitational force between the Earth and an m = 6.00 kg mass on the surface of the Earth. The distance to the center of the Earth from the surface is 6.37×103 km and the mass of the Earth is 5.98×1024 kg.

physics/math - Steve, Friday, March 22, 2013 at 3:38pm
F = GMm/r^2
= (6.67*10^-11)(5.98*10^24)(6.00)/(6.37*10^6)^2 = 58.9 N

But then, we knew that, since 6.00*9.8 = 58.9

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