What must be the angular speed of the disk

Reference no: EM13546043

As the drawing illustrates, a siren can be made by blowing a jet of air through 20 equally spaced holes in a rotating disk. The time it takes for successive holes to move past the air jet is the period of the sound. The siren is to produce a 2670-Hz tone. What must be the angular speed in radians per second of the disk?

Reference no: EM13546043

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