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9. [2pt] A pipe, of length L = 0.317m and diameter d = 0.081 m is open at both ends. A loudspeaker is placed near one end and
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Second brequeny open gwest pipe P V 1P Fox 2V V 2 343 0.317+0 6D corecin with end 3 43 2e o.317+ 0.6x0 os e o.3 D 343 G3818 H

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