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Problem 18.2: The animation represents a sound wave propagating in a very long pipe

Please wait for the animation to completely load.

The animation represents a cross section of a sound wave propagating in a very long pipe. Restart. A detector, the orange square, is placed in the pipe and properly measures the pressure (position is given in meters and time is given in milliseconds). Which of the graphs properly represents the displacement of the air molecules in the pipe?

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