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An organ pipe is open at one end and closed at the other. The pipe is 1.5 m long. Assume the speed of sound in the pipe is 340 m/s. The lowest harmonic frequency for this pipe is ________Hz.

A) A hole is drilled in the side of the pipe 0.5 m from the closed end, fixing the pressure at this point to atmospheric pressure.

B) Determine the new lowest harmonic frequency in the pipe. _________Hz

C) Explain how the principle of this problem applies to woodwind instruments like the flute and recorder.

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