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# Wagnerian Opera. A man marries a great Wagnerian soprano

ISBN: 9780321675460 31

## Solution for problem 71P Chapter 16

University Physics | 13th Edition

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Problem 71P

Wagnerian Opera?. A man marries a great Wagnerian soprano but, alas, he discovers he cannot stand Wagnerian opera. In order to save his eardrums, the unhappy man decides he must silence his larklike wife for good. His plan is tie her to the front of this car and send car and soprano speeding toward a brick wall this soprano is quite shrewd, however, having studied physics in her student days at the music conservatory. She realizes that this wall has a resonant frequency of 600 Hz, which means that if a continuous sound wave of this frequency hits the wall, it will fall down, and she will be saved to sing more Isoldes. The car is heading toward the wall at a high speed of 30 m/s. (a) At what frequency must the soprano sing so that the wall will crumble (b)What frequency will the soprano hear reflected from the wall just before it crumbles?

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