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A vibrating tuning fork is held above a column of air. The fundamental frequency is 343...

A vibrating tuning fork is held above a column of air. The fundamental frequency is 343 Hz The water level is lowered until a third resonance is heard. Calculate the length of the air column that produces this third resonance. The original length was .25m The speed of sound in air is 343m/s Please show work The answer sheet lists the answer as 1.25m

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