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September 3, 2015

Homework Help: physics

Posted by jay on Friday, December 24, 2010 at 9:39pm.

Mars has a mass of about 6.45 10
23
kg,
and its moon Phobos has a mass of about
9.4 10
15
kg.
If the magnitude of the gravitational force
between the two bodies is 4.68 10
15
N,
how far apart are Mars and Phobos? The
value of the universal gravitational constant
is 6.673 10
−11
N m2
/kg
2

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