document.write( "Question 1029411: Please help me solve this problem:
\n" ); document.write( "a spring with a spring constant K = 3 newton per meter is stretched from x = 1 meter to x = 4 meters. Find the work done to the spring.
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Algebra.Com's Answer #644458 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"F=-kx\"
\n" ); document.write( "\"W=int%28F%2Cdx%2C1%2C4%29\"
\n" ); document.write( "\"W=int%28%28-kx%29%2Cdx%2C1%2C4%29\"
\n" ); document.write( "\"W=-%28kx%5E2%29%2F2%2BC\"
\n" ); document.write( "\"W=-%28k%2F2%29%284%5E2-1%5E2%29\"
\n" ); document.write( "\"W=-%28k%2F2%29%2816-1%29\"
\n" ); document.write( "\"W=-%283%2F2%29%2815%29\"
\n" ); document.write( "\"W=-45%2F2\"\"N-m\"
\n" ); document.write( "This is work done by the spring so work done on the spring is the negative of this amount.
\n" ); document.write( "\"W=45%2F2\"\"J\"
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