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What is the intensity (in W/m2) of a sound that is 7.00 dB higher than a...

What is the intensity (in W/m2) of a sound that is 7.00 dB higher than a 5.01 ✕ 10−9 W/m2 sound?

What is the intensity (in W/m2) of a sound that has a level 3.00 dB lower than a 5.01 ✕ 10−9 W/m2 sound?

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