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A baby's mouth is 30.0 cm from her father's ear and 1.50 m from her mother's ear. What is the difference between the sound intensity levels (in dB) heard by her father and by her mother?
17 years ago

Answers

drwls
(20)^2 = 400 times the sound power (at the mother's ear) = how many decibels?
17 years ago

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