Homework Help: Physics

Posted by Shanique on Sunday, December 13, 2009 at 1:42pm.

Mars has a mass of about 6.4*10^23 kg, and it's moon Phobos has a mass of about 9.6*10^15 kg.If the magnitude of the grvitational force between the two bodies is 4.6* 10^15 N, how far apart are Mars and Phobos?

Physics - bobpursley, Sunday, December 13, 2009 at 1:50pm
It is simple algebra:

Fg= G M1*M2/distance^2

solve for distance

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