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Statement of a problem № 3476

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A fork and a monochord string of length 100 cm give 4 beats/s. The string is made shorter, without any change of tension, until it is in unison with the fork. If its new length is 99 cm, what is the frequency of the fork?

Solution:
A fork and a monochord string of length 100 cm give 4 beats/s. The string is mad

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