A 10 min exposure to 120 dB sound will temporarily shift your threshold of hearing at 1000 Hz from 0 dB up to 28 dB. Ten years of exposure to 92 dB sound will cause a permanent shift to 28 dB. What sound intensities correspond to 28 dB and 92 dB?

A 10 min exposure to 120 dB sound will temporarily shift your threshold of hearing at 1000 Hz from 0 dB up to 28 dB. Ten years of exposure to 92 dB sound will cause a permanent shift to 28 dB. What sound intensities correspond to 28 dB and 92 dB?

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Question

A 10 min exposure to 120 dB sound will temporarily shift your threshold
of hearing at 1000 Hz from 0 dB up to 28 dB. Ten years of exposure
to 92 dB sound will cause a permanent shift to 28 dB. What sound
intensities correspond to 28 dB and 92 dB?

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