document.write( "Question 316669: 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=pi^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 #226588 by checkley77(12844)\"\" \"About 
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8T^2=pi^2L
\n" ); document.write( "8t^2=9.86*10
\n" ); document.write( "8t^2=98.6
\n" ); document.write( "t^2=98.6/8
\n" ); document.write( "t^2=12.345
\n" ); document.write( "t=sqrt12.345
\n" ); document.write( "t=3.51 seconds.
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