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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