18. Waves & Sound
Wave Intensity
Problem 15b
Textbook Question
Textbook QuestionEnergy Output. By measurement you determine that sound waves are spreading out equally in all directions from a point source and that the intensity is 0.026 W/m^2 at a distance of 4.3 m from the source. (a) What is the intensity at a distance of 3.1 m from the source?
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