The sound level at a distance of 3.00 m from a source is 120 dB. At what distance is the sound level (a) 100 dB and (b) 10.0 dB? 30. The smallest change in sound level that a person can distinguish is approximately 1 dB. When you are standing next to your power lawn mower as it is running, can you hear the steady roar of your neighbors lawn mower? Perform an order-of-magnitude calculation to substantiate your answer, stating the data you measure or estimate.
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