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You have a long pipe closed at one end and an electronic buzzer with which you can dial in different single frequency sounds. When you hold the buzzer near the end of the pipe, transmitting sound down the pipe, you determine that standing waves are established at frequencies of 66, 110, and 154 Hz. The frequency of 66 Hz is not necessarily the fundamental frequency. Determine the length of the pipe if the speed of sound in air is 343 m/s.
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