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A closed tube of length 0.60 m is used to create a standing sound wave. Assume...

A closed tube of length 0.60 m is used to create a standing sound wave. Assume that the standing wave created in the tube has the second longest wavelength possible (out of all possible standing waves that fit in the tube). If this tube is then placed on a truck that moves away (at a speed of 90.0 km/hr) from a stationary observer, what frequency does the observer hear?

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Answer #1

V - Yokm/h, a 90x5 = 2smis 18 Now Closed liebe Nodes on both sides. S A₂ = 1 N. اح) second largest l-0.6m largest wavelength

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