Biology, 11.06.2021 23:10 deer15

If a person is operating a leaf blower at 110 decibels, and using a pair of noise cancelling headphones that reduces the relative intensity by 100 times, will the sound be in the safe range of human hearing?

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If a person is operating a leaf blower at 110 decibels, and using a pair of noise cancelling headpho...

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