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a point noise source with sound power of 7W is located 2m from a sound barrier of 3m height. A building is located 30m from

a point noise source with sound power of 7W is located 2m from a sound barrier of 3m height. A building is located 30m from the sound barrier on the opposite side. calculate the sound pressure level at a receiver located at 30m height at the building.

500Hz

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