A particular person s eardrum is circular with a diameter of

Last updated: 6/15/2023

A particular person s eardrum is circular with a diameter of 7 00 mm a How much sound energy in J is delivered to an eardrum in one second at the threshold of human hearing The threshold of human hearing is taken to be 1 00 x 10 12 W m b How much sound energy in J is delivered to an eardrum in one second at the pain threshold for human hearing The pain threshold occurs at 1 00 W m one trillion times as intense as the lowest audible level c Assume that musicians onstage are exposed to sound that is 10 decibels below the human pain threshold Over the course of a two hour concert how much sound energy in J does each ear absorb onstage d Assume that the amplifiers on the stage operate at a combined power of 5 000 Watts and that 80 of this is converted to sound Which of the following best approximates the fraction of this power incident upon each eardrum onstage As in the previous part assume that the musicians are exposed to sound that is 10 dB below the human pain threshold O one thousandth 10 3 O one millionth 10 6 O one billionth 10 O one trillionth 10 12