document.write( "Question 600647: Zoey is using a formula to determine weather the mass of the books she carries in her backpack could cause injury to her back. What unit of measure should Zoey use to find the mass of the books? \n" ); document.write( "
Algebra.Com's Answer #379410 by jim_thompson5910(35256)\"\" \"About 
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Zoey should use the kilogram as the unit of measure because it's a standard unit of measure of mass in the physics world. \n" ); document.write( "
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