Posted by lisa on Monday, November 11, 2013 at 12:06pm.
Find the number of decibels for the power of the sound given. Round to the nearest decibel.
A rocket engine,
2.42 * 10^5 watts cm^2
what is the db?

algebra  Henry, Monday, November 11, 2013 at 7:58pm
db=10*Log(2.42*10^5)=10*Log(242000) = 54

algebra  Henry, Sunday, November 9, 2014 at 3:10pm
Correction:
db = 10*Log(2.42*10^5/10^16) =
10*Log(2.42*10^21) = 81

algebra  Henry, Sunday, November 9, 2014 at 3:28pm
Oops!!
10*Log(2.42*10^21) = 214 db.
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