What is the expected critical frequency for a 120 mm thick brick wall? Assume a longitudinal wave velocity in brick of 2350 m/s and that the velocity of sound in air is 330 m/s. a. 114.5 Hz b. 214.5 Hz c. 314.5 Hz d. 414.5 Hz
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What is the expected critical frequency for a 120 mm thick brick wall? Assume a longitudinal wave velocity in brick of 2350 m/s and that the velocity of sound in air is 330 m/s.
a. 114.5 Hz
b. 214.5 Hz
c. 314.5 Hz
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