document.write( "Question 79520: The decibel level of sound is given by D=10log(I/10^-12), where I is the sound intensity measured in watts per square meter. Find the decibel level of a whisper at an intensity of 5.4*10^-10 watts per square meter. \n" ); document.write( "

Algebra.Com's Answer #57124 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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The decibel level of sound is given by D=10log(I/10^-12), where I is the sound intensity measured in watts per square meter. Find the decibel level of a whisper at an intensity of 5.4*10^-10 watts per square meter.
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\n" ); document.write( "Substitute 5.4(10^-10) for I in the given formula:
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\n" ); document.write( "D = 10*log( $\"%28%285.4%2810%5E-10%29%29%29%2F%28%2810%5E-12%29%29\"$ )
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\n" ); document.write( "D = 10*log( $\"5.4%2810%5E-10%29%2810%5E12%29\"$ )
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\n" ); document.write( "D = 10*log( $\"5.4%2810%5E2%29\"$ )
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\n" ); document.write( "D = 10*log(540)
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\n" ); document.write( "D = 10*2.7324
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\n" ); document.write( "D = 27.32 decibel level of a whisper \n" ); document.write( "

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