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Question 4 Suppose that the sound level of a conversation is initially at an angry 70 dB and then drops to a soothing 50 dB.

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O sol 21 B = 70db f= 508H2 B2 = 500B 100 À The infensity sound Level B = 10 log ( 2 ) 70 = 10 long long 1078 I1 = (107688 % (© The inofensity and The amper fude relation 1 = 2725% of lov N2343 m/s of a 5ooth for 1.2189/m3 TJO V $* = netop for 1010-5

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