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PRACTICE IT Use the worked example above to help you solve this problem. A small source emits sound waves with a power output of 83.1

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PRACTICE IT Use the worked example above to help you solve this problem. A small source emits sound waves with a power output of 83.1 W. (a) Find the intensity 3.12 m from the source. e W (b) At what distance would the intensity be one-fourth as much as it is at r = 3.12 m? _em (c) Find the distance at which the sound level is 38.3 dB. -x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. m EXERCISE HINTS: GETTING STARTED | I'M STUCK! Suppose a certain jet plane creates an intensity level of 124 dB at a distance of 5.87 m. What intensity level does it create on the ground directly underneath it when flying at an altitude of 2.49 km? -x Check your expressions. dB Need Help? _

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