A rocket engine emits 3.04 x 104 J of sound energy every second. The sound is emitted uniformly in all directions.

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A rocket engine emits 3.04 x 104 J of sound energy every second. The sound is emitted uniformly in all directions. What is the sound intensity level, measured relative to the threshold of hearing, at a distance of 120 m away from the engine? Hint: The threshold of hearing is I0 = 1 × 10-12 W/m2.

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