strayer
posted by Anonymous .
A rock concert, 5.17 106 watts/cm2
D = dB

If the sound intensity is 5.17*10^6 W/cm^2, the dB level is
10Log(10)[5.17*10^6/10^16]
10Log(10)[5.17*10^10] = 107.1 dB
Ref:
http://hyperphysics.phyastr.gsu.edu/hbase/sound/intens.html#c1
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