document.write( "Question 344567: A steel plant has to fill an order from an automobile manufacturer for 100,000 steel ball bearings ½ inches in diameter. What is the total weight of the metal required to fill this order, if steel weighs 480 lb per cu. ft? \n" ); document.write( "
Algebra.Com's Answer #246629 by Fombitz(32388)\"\" \"About 
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Each bearing is a sphere.
\n" ); document.write( "The volume of a sphere is,
\n" ); document.write( "\"V=%284%2F3%29%28pi%29R%5E3\"
\n" ); document.write( "\"V=%284%2F3%29%28pi%29%280.5%29%5E3\"
\n" ); document.write( "\"V=0.5236\"cu.inches
\n" ); document.write( "For 100,000 bearings, the volume would be,
\n" ); document.write( "\"V%5Bt%5D=1000000%280.5236%29=52359\" cu. inches
\n" ); document.write( "There are \"12\" inches in \"1\" foot and \"12%5E3\" cubic inches in \"1\" cubic ft.
\n" ); document.write( "\"V%5Bt%5D=52359%2F12%5E3=52359%2F1728=30.3\"cubic feet
\n" ); document.write( "To find the weight, multiply the volume by the density,
\n" ); document.write( "\"m=rho%2AV%5Bt%5D=480%2A30.3=14544\" lbs.
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