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Part B Only Some pipe organs create sounds lower than humans can hear. This \"in

ID: 1474589 • Letter: P

Question

Part B Only

Some pipe organs create sounds lower than humans can hear. This "infrasound" can still create physical sensations. Assume a sound speed of 343 m/s. What is the fundamental frequency of the sound from an open-open pipe that is 32 feet long (a common size for large organs; 1 ft = 0.305 m) Express your answer to two significant figures and include the appropriate units. What length open-closed tube is necessary to produce this note Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

for open - closed organ pipe frequency

f = v/4L

L = v/4f

L = 343/4*17.6

L = 4.87 m