On a day when the speed of sound is \( 345 \mathrm{~m} / \mathrm{s} \), the fundamental frequenc...

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On a day when the speed of sound is \( 345 \mathrm{~m} / \mathrm{s} \), the fundamental frequency of a closed organ pipe is \( 220 \mathrm{~Hz} \). (a) How long is this closed pipe? (b) The second overtone of this pipe has the same wavelength as the third harmonic of an open pipe. How long is the open pipe?
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