# math

Find the number of decibels for the power of the sound given. Round to the nearest decibel.
A rocket engine,
2.37 cross 10−5
watts/cm2

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1. The usual reference level is 10^-12 W/m^2

Here, you have 2.37*10^-5 W/cm^2 = 2.37*10^-1 W/m^2

The dB level is thus

10 log(2.37*10^11) = 10*11.37 = 113.7 dB

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posted by Steve

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