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Two Motors in a Factory Are Running at Slightly Different

Question 40

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Two motors in a factory are running at slightly different rates.One runs at 825.0 rpm and the other at Two motors in a factory are running at slightly different rates.One runs at 825.0 rpm and the other at You hear the sound intensity increase and then decrease periodically due to wave interference.How long does it take between successive instances of the sound intensity increasing? A) 1.54 s B) 1.43 s C) 1.66 s D) 1.79 s
You hear the sound intensity increase and then decrease periodically due to wave interference.How long does it take between successive instances of the sound intensity increasing?


A) 1.54 s
B) 1.43 s
C) 1.66 s
D) 1.79 s

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