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A fluist assembles her flute in a room where the speed of sound is 342 m/s. When she plays the note A, it is in perfect tunewith 440Hz tuning fork. After a few minutes, the air inside herflute has warmed to where the speed of sound is 346 m/s.

a. How many beats per second will she hear if she now plays thenote A as the tuning fork is sounded?

b. How far does she need to extend the "tuning joint" of her flute to be in tune with the tuning fork?

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