document.write( "Question 407770: A girder made of steel. The length of the girder is 3.77 m. In the middle of the girder there is a fracture. The temperature rises 32° C. Find the height that the girder rises from the middle, if it is fixed at both ends. The linear expansion coefficient for steel is 12*10^-6 /C.
\n" ); document.write( "Is it 1.79m?? \n" ); document.write( "
Algebra.Com's Answer #287433 by ankor@dixie-net.com(22740)\"\" \"About 
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A girder made of steel. The length of the girder is 3.77 m.
\n" ); document.write( " In the middle of the girder there is a fracture. The temperature rises 32° C.
\n" ); document.write( " Find the height that the girder rises from the middle, if it is fixed at both ends.
\n" ); document.write( " The linear expansion coefficient for steel is 12*10^-6 /C.
\n" ); document.write( ":
\n" ); document.write( "It might be more convenient to use cm here, Change 3.77m to 377 cm
\n" ); document.write( ":
\n" ); document.write( "Find the increase in length (x) for a 32 degree temp change
\n" ); document.write( "x = \"12%2A10%5E-6%2A377%2A32\"
\n" ); document.write( "x = .144768 cm increase in length
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\n" ); document.write( "Total length after expansion; 377.144768 cm
\n" ); document.write( "Calculate the rise using half the length:
\n" ); document.write( "Originally: 188.5 cm
\n" ); document.write( "After expansion: 188.572384 cm
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\n" ); document.write( "Find the height (h) that the girder rises using pythag.
\n" ); document.write( "h^2 + 188.5^2 = 188.572384^2
\n" ); document.write( ":
\n" ); document.write( "h = \"sqrt%28188.572384%5E2+-+188.5%5E2%29\"
\n" ); document.write( ":
\n" ); document.write( "h = 5.22 cm rise
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