document.write( "Question 193537This question is from textbook
\n" ); document.write( ": A heavy metal sphere with radius 10 cm is dropped into a
\n" ); document.write( "right circular cylinder with base radius of 10 cm. If the
\n" ); document.write( "original cylinder has water in it that is 20 cm high, how
\n" ); document.write( "high is the water after the sphere is placed in it?\r
\n" ); document.write( "\n" ); document.write( "I do not understand how to solve this. Please help. Thank you.
\n" ); document.write( "

Algebra.Com's Answer #145278 by vleith(2983)\"\" \"About 
You can put this solution on YOUR website!
here is a URL for volume --> http://math.about.com/od/formulas/ss/surfaceareavol.htm\r
\n" ); document.write( "\n" ); document.write( "Let's think about this first.
\n" ); document.write( "We have a sphere that will sink in the water.
\n" ); document.write( "The cylinder is wide enough to contain the sphere. (one could argue that a sphere with radius 10 won't fit into a cylinder with radius 10. But we will let that one go for now)\r
\n" ); document.write( "\n" ); document.write( "When we drop the sphere into the cylinder of water, it sinks to the bottom.\r
\n" ); document.write( "\n" ); document.write( "How much water is displaced by the sphere we dropped in?\r
\n" ); document.write( "\n" ); document.write( "The volume of a sphere is given by \"V+=+4%2Api%2Ar%5E3%2F3\"\r
\n" ); document.write( "\n" ); document.write( "So we know how much water is displaced.\r
\n" ); document.write( "\n" ); document.write( "Now that we know the amount of water that 'moved', and we know the container holding that water is a right circular cylinder, all we need to know is the formula for the volume of such a cylinder.\r
\n" ); document.write( "\n" ); document.write( "\"V+=+pi%2Ar%5E2+%2A+h+\"\r
\n" ); document.write( "\n" ); document.write( "Now we can equate those two volumes and solve for h
\n" ); document.write( "\"4+%2Api+%2A+r%5E3+%2F+3+=+pi+%2A+r%5E2+%2A+h+\"
\n" ); document.write( "\"4+%2A+r+%2F+3+=+h+\"\r
\n" ); document.write( "\n" ); document.write( "We are told r = 10 , so that yields \"h+=+40%2F3\" = \"13.33\" centimeters
\n" ); document.write( "
\n" );