(II) (a) Estimate the power output of sound from a

Chapter , Problem 23

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(II) (a) Estimate the power output of sound from a personspeaking in normal conversation. Use Table 16-2. Assumethe sound spreads roughly uniformly over a sphere centeredon the mouth, (b) How many people would it take toproduce a total sound output of 75 W of ordinary conversation?[Hint: Add intensities, not dBs.]

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