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There is evidence that elephants communicate via infrasound,generating rumbling vocalizations as low as 14 hz that can travelup to 10 km. The intensity level of these sounds can reach98 dB, measured a distance of 4.5 m from the source. Determine the intensity levelof the infrasound 10 km from the source, assuming the sound energyradiates uniformly in all directions.

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Category:- Physics
Reference No.:- M91101704

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