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18. Waves & Sound - Part 1 of 3
18. Waves & Sound - Part 1 of 3
18. Waves & Sound / Wave Intensity / Problem 3
A fire alarm system produces a loud sound that has an intensity of 5 × 10-2 w/m2 at a distance of 4 m. The alarm is on for 15 minutes. What is the energy transferred away from the alarm if its output power remains constant?
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