document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=81126>Question 81126</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0130356824/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Find the length of a pendulum that makes one swing in three seconds? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #58169 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=58169\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the formula for a simple pendulum is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T=2%2Api%2Asqrt%28L%2Fg%29 ALIGN=MIDDLE  ALT=\"T=2%2Api%2Asqrt%28L%2Fg%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > ... where T=period, L=length, g=gravitational acceleration\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "solving for L gives <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L=gT%5E2%2F4pi%5E2 ALIGN=MIDDLE  ALT=\"L=gT%5E2%2F4pi%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > ... so <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L=32%2A9%2F4pi%5E2 ALIGN=MIDDLE  ALT=\"L=32%2A9%2F4pi%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > ... L equals approximately 7.30 feet </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );