A mother hears a child scream from across the room, 23 feet away. The sound pressure level is 72dB. When she holds the child on her shoulder, her ear is 3 inches from the screams. Using the decibel chart, about how long until damage to her hearing occurs if the child continues screaming?
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Sound Intensity is inversely proportional to the square of distance between the source and the ...
The solution provides the calculation for sound intensity and an analysis for the damaging levels of sound.