(Answered) Question a 60 year old person has a threshold of hearing of

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Question: A 60 year old person has a threshold of hearing of 75.0 dB for a sound with frequency f = 10,000 Hz. By what factor must the intensity of a sound wave of that frequency, audible to a typical young adult, (sound level= 43.0 dB) be increased so that it is heard by the older person.

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