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A spherical source radiates sound uniformly in all directions. At a distance of 13 m, the sound intensity level is 80 dB.
(a) At what distance from the source is the intensity level 60 dB?
in m
(b) What power is radiated by this source?
in W
Assuming that the bond energy holding together a water molecule is typical, use table below to estimate how various molecular bonds might be broken with this energy.
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