document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=190810>Question 190810</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone please help:\r<BR>\n" );
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document.write( "A 3-kg pine board is 20 cm wide, 2 cm thick, and 2 cm long. The density of the board is \r<BR>\n" );
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document.write( "a. 240 kg/m3.<BR>\n" );
document.write( "b. 267 kg/m3.<BR>\n" );
document.write( "c. 375 kg/m3.<BR>\n" );
document.write( "d. 469 kg/m3. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #143268 by </B><A HREF=/tutors/aboutme.mpl?userid=orca><B>orca(409)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=orca><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=143268\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I think the board should be 2 meters long instead of the given value of 2 cm\r<BR>\n" );
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document.write( "To figure out the density, we need to find the volume of the pine board. Then use the density formula to find the density\r<BR>\n" );
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document.write( "density = mass/volume\r<BR>\n" );
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document.write( "Note that as we want the unit of the density be kg/m3, we need to change the units of the board's dimensions to meter.<BR>\n" );
document.write( "20cm = 20/100 meter = 0.2m<BR>\n" );
document.write( "2cm = 2/100 meter = 0.02m<BR>\n" );
document.write( "The volume = 0.2x0.02x1 = 0.008m^3\r<BR>\n" );
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document.write( "density = mass/volume = 3/0.008 = 375kg/m^3\r<BR>\n" );
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document.write( " </SPAN>\n" );
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