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[101 (7) A tube is open only at one end. A certain harmonic n produced by the tube has a frequency of 450 Hy. The

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[101 (7) A tube is open only at one end. A certain harmonic n produced by the tube has a frequency of 450 Hy. The next higher harmonic has a frequency of 750 Hx. The speed of sound in air is 343 m/s. (a) What is the integer a that describes the harmonic whose frequency is 450 Hy? (b) What is the length of the tube

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