What is the sound intensity of a whisper at a distance of 3.0 m, in W/m^2 ?
What is the corresponding sound intensity level in dB?
The Attempt at a Solution
I tried looking up what the power of a whisper was and I can't find any information. This would not be a difficult problem if the information was given, but I don't know how to go about it without a value for P.
Any help on this subject would be greatly appreciated.