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Gravitational potential
In physics, gravitational potential is the measure of potential energy an object possesses due to its position in a gravitational field. The gravitational potential of an object of mass m relative to a point mass M is
where G is the universal gravitational constant and r is the distance between the centers of the two objects.
If the structure of an object is spherically symmetrical, e.g. the Earth, then the potential is the same as that of a point object having the same mass.
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details