document.write( "Question 1169875: The moon of a planet is observed to have a nearly circular orbit, r=4E8m, and an orbital period of 21.5 days.. what is the mass of the planet\r
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Algebra.Com's Answer #794707 by Solver92311(821)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "This is a Physics problem. Algebra.com is a mathematics website.\r
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\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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