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Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?
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The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is
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The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?
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