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A student stands several metres in front of a smooth reflecting wall, holding a board on...

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Physics

A student stands several metres in front of a smooth reflectingwall, holding a board on which a wire is fixed at each end. Thewire, vibrating in its third harmonic, is 75.0 cm long, has a massof 2.25 g, and is under a tension of 400 N. A second student,moving towards the wall, hears 8.30 beats per second.Determine:

a. frequency of sound produced by the wire;

b. the speed at which the second student approaches thewall.

Answer & Explanation Solved by verified expert
4.5 Ratings (958 Votes)
When the string is vibrating in the third harmonic thenthelength of the string isL 3 2 2L 3 2 075 3 05 mFormula for the    See Answer
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