document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=117415>Question 117415</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Pls help!!! : A coil of wire has a mass of 1.2 kg. The diameter of the wire is 2mm. 1cm^3 of the wire weighs 6.8g. Find the length of the wire and correct to the nearest metre. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #85411 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=85411\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The diameter of the wire is 2 mm<BR>\n" );
document.write( "1 mm = .001 m<BR>\n" );
document.write( "2 mm = .002 m<BR>\n" );
document.write( "The cross-section area of the wire is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+pi%2Ar%5E2 ALIGN=MIDDLE  ALT=\"A+=+pi%2Ar%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+pi%2A.001%5E2 ALIGN=MIDDLE  ALT=\"A+=+pi%2A.001%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+3.1416%2A10%5E-6 ALIGN=MIDDLE  ALT=\"A+=+3.1416%2A10%5E-6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The volume of the wire is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2AL ALIGN=MIDDLE  ALT=\"A%2AL\"   DISABLED_style= \"max-width:90%; height:auto;\" > where L is the length<BR>\n" );
document.write( "Since a known volume has a known weight, <BR>\n" );
document.write( "I can set up a proportion<BR>\n" );
document.write( "6.8 g / 1 cm3 = 1200 g / V<BR>\n" );
document.write( "1 cm3 = .0001 m3<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6.8+%2F+10%5E-4+=+1.2%2A10%5E3+%2F+V ALIGN=MIDDLE  ALT=\"6.8+%2F+10%5E-4+=+1.2%2A10%5E3+%2F+V\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "multiply both sides by V<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6.8V+%2F+10%5E-4+=+1.2%2A10%5E3 ALIGN=MIDDLE  ALT=\"6.8V+%2F+10%5E-4+=+1.2%2A10%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "multiply both sides by 10^-4<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6.8V+=+1.2%2A10%5E3%2A10%5E-4 ALIGN=MIDDLE  ALT=\"6.8V+=+1.2%2A10%5E3%2A10%5E-4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "divide both sides by 6.8<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V+=+1.2%2A10%5E-1+%2F+6.8 ALIGN=MIDDLE  ALT=\"V+=+1.2%2A10%5E-1+%2F+6.8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V+=+.017647 ALIGN=MIDDLE  ALT=\"V+=+.017647\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V+=+A%2AL ALIGN=MIDDLE  ALT=\"V+=+A%2AL\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L+=+V+%2F+A ALIGN=MIDDLE  ALT=\"L+=+V+%2F+A\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L+=+1.7647%2A10%5E-2+%2F+%283.1416%2A10%5E-6%29 ALIGN=MIDDLE  ALT=\"L+=+1.7647%2A10%5E-2+%2F+%283.1416%2A10%5E-6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L+=+%281.7647+%2F+3.1416%29%2A10%5E4 ALIGN=MIDDLE  ALT=\"L+=+%281.7647+%2F+3.1416%29%2A10%5E4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L+=+.5617%2A10%5E4 ALIGN=MIDDLE  ALT=\"L+=+.5617%2A10%5E4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L+=+5.617%2A10%5E3 ALIGN=MIDDLE  ALT=\"L+=+5.617%2A10%5E3\"   DISABLED_style= \"max-width:90%; height:auto;\" >m<BR>\n" );
document.write( "The length to the nearest meter is 5,617 m<BR>\n" );
document.write( "check answer<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6.8+%2F+10%5E-4+=+1.2%2A10%5E3+%2F+V ALIGN=MIDDLE  ALT=\"6.8+%2F+10%5E-4+=+1.2%2A10%5E3+%2F+V\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6.8+%2F+10%5E-4+=+1.2%2A10%5E3+%2F+%28A%2AL%29 ALIGN=MIDDLE  ALT=\"6.8+%2F+10%5E-4+=+1.2%2A10%5E3+%2F+%28A%2AL%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6.8+%2F+10%5E-4+=+1.2%2A10%5E3+%2F+%283.14159%2A10%5E-6%2A5.617%2A10%5E3%29 ALIGN=MIDDLE  ALT=\"6.8+%2F+10%5E-4+=+1.2%2A10%5E3+%2F+%283.14159%2A10%5E-6%2A5.617%2A10%5E3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6.8%2A10%5E4+=+1.2%2A10%5E6+%2F+%283.14159%2A5.617%29 ALIGN=MIDDLE  ALT=\"6.8%2A10%5E4+=+1.2%2A10%5E6+%2F+%283.14159%2A5.617%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6.8%2A10%5E4+=+1.2%2A10%5E6+%2F+1.7646%2A10%5E1 ALIGN=MIDDLE  ALT=\"6.8%2A10%5E4+=+1.2%2A10%5E6+%2F+1.7646%2A10%5E1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6.8%2A10%5E4+=+.68004%2A10%5E5 ALIGN=MIDDLE  ALT=\"6.8%2A10%5E4+=+.68004%2A10%5E5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6.8+=+6.8004 ALIGN=MIDDLE  ALT=\"6.8+=+6.8004\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "close enough  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );