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Author Question: Calculate the intensity level in dB of a sound wave that has an intensity of 15 104 W/m2. (Read 60 times)

jenna1

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Question 1

Calculate the displacement amplitude (in m) of a 20 kHz sound wave in helium if it has a pressure amplitude of 8.0 × 103 N/m2. (ρ = 0.179 kg/m3, v = 972 m/s.)

2.9 × 1010

3.7 × 1010

7.8 × 109

2.4 × 109

1.9 × 1010


Question 2

Calculate the intensity level in dB of a sound wave that has an intensity of 15 × 104 W/m2.

20

200

92

9

10


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Marked as best answer by jenna1 on Aug 6, 2020

djpooyouma

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jenna1

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Reply 2 on: Aug 6, 2020
YES! Correct, THANKS for helping me on my review


TheNamesImani

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Reply 3 on: Yesterday
Wow, this really help

 

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