document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=138446>Question 138446</A>: <I><SPAN STYLE=\"word-break: break-all;\">    The loudness of a sound in decibels is related to the sound i, where the function for the loudness is given L(i) = 10 log10<BR>\n" );
document.write( " (_i_),<BR>\n" );
document.write( "   io<BR>\n" );
document.write( " and io is a constant equal to the minimum sound that can be detected by the human ear. Find the loudness in decibels of a recording of rock music with intensity 10 million times io. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #101093 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=101093\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The loudness of a sound in decibels is related to the sound i, where the function for the loudness is given L(i) = 10 log10 [(_i_)/io]<BR>\n" );
document.write( " and io is a constant equal to the minimum sound that can be detected by the human ear.<BR>\n" );
document.write( " Find the loudness in decibels of a recording of rock music with intensity 10 million times io.<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "L(10^7 io) = 10log10(10^7io/io)\r<BR>\n" );
document.write( "\n" );
document.write( "= 10log10 10^7 = 10*7 = 70dB<BR>\n" );
document.write( "==========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );