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A string 40.0 cm long of mass 8.50 g is fixed at both ends and is under a tension of .When this string is vibrating in its third OVERTONE,you observe that it causes a nearby pipe,open at both ends,to resonate in its third HARMONIC.The speed of sound in the room is
(a)How long is the pipe?
(b)What is the fundamental frequency of the pipe?
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