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What is the minimum tread depth of a step

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Reference no: EM131477993

A sound wave with a frequency of 441.4 Hz is incident upon a set of stairs. The reflected waves from the vertical surfaces of adjacent steps interfere destructively. What is the minimum tread depth of a step for this to occur? In dry air at 20°C, the speed of sound is343 m/s.

Reference no: EM131477993

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