<PRE><B>Question 827240</B>
The intensity of a certain noise is 5.68. How loud, in decibels, is this sound level? Use the formula D=10log (I/Io) where Io=10^-16W/cm^2. Round to the nearest decibel. 
-------
D = 10 log[5.68/10^(-16)]
====
= 10[log(5.68)-log(10^-16)]
====
= 10[0.7543 - (-16)]
----
= 10[16.7543]
----
= 167.543
= 168 when rounded up
============================
Cheers,
Stan H.</PRE>