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A Sound Source Emits 30

Question 57

Multiple Choice

A sound source emits 30.0 W of sound power spread equally in all directions. What is the sound intensity level 30.0 m from the source?

A) 94.2 dB
B) 83.2 dB
C) 2.65 × 10^-³ dB
D) 2.65 × 10^-³ W
E) -25.8 dB

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