document.write( "Question 67191: The period T (time in seconds for one complete cycle) of a simple pendulum is related to the length L (in feet) of the pendulum by the formula 8T^2= pie^2L. If a child is on a swing with a 10-foot chain, then how long does it take to complete one cycle of the swing? \n" ); document.write( "

Algebra.Com's Answer #47836 by 303795(602) $\"\"$ $\"About$

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$\"8T%5E2=+pi%5E2L\"$
\n" ); document.write( " $\"T%5E2=+pi%5E2L%2F8\"$
\n" ); document.write( " $\"T=+sqrt%28pi%5E2L%2F8%29\"$
\n" ); document.write( "If L=10 then
\n" ); document.write( " $\"T=+sqrt%28pi%5E2L%2F8%29+=+sqrt%28pi%5E2%2A10%2F8%29\"$
\n" ); document.write( " $\"T=+sqrt%2812.337%29\"$
\n" ); document.write( "T=3.5 seconds
\n" ); document.write( " \n" ); document.write( "

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