At an outdoor concert on a cold winter night, the speed of sound in the cold air is 330 m/s. An organ pipe open at both ends is 1.5 m long. A second organ pipe that is closed at one end and open at the other end is 0.75 m long. Which of the following sets of frequencies can be produced by BOTH pipes? 330 Hz, 440 Hz, 550 Hz 220 Hz, 660 Hz, 1100 Hz 110 Hz, 220 Hz, 330 Hz 220 Hz, 440 Hz, 660 Hz 110 Hz, 330 Hz, 550 Hz
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