Sound Relative Intensity
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Last updated over 2 years ago
3 questions
Required
1
As a jogger hears the bark of an approaching dog, the sound reaching her ears has an intensity of 4.19 × 10^-7 W/m^2. What is the relative intensity level of the barking?
As a jogger hears the bark of an approaching dog, the sound reaching her ears has an intensity of 4.19 × 10^-7 W/m^2. What is the relative intensity level of the barking?
Required
1
A girl stands 4.1 m from a radio whose sound output is 9.17 × 10^-6 W. What is the relative intensity level of the sound she hears?
A girl stands 4.1 m from a radio whose sound output is 9.17 × 10^-6 W. What is the relative intensity level of the sound she hears?
1
- Challenge: A would-be burglar trips an alarm that emits 1.77 × 10^-4 W of sound power. How far away will the burglar have to run before the relative intensity level of the alarm will dwindle to 65 dB?
- Challenge: A would-be burglar trips an alarm that emits 1.77 × 10^-4 W of sound power. How far away will the burglar have to run before the relative intensity level of the alarm will dwindle to 65 dB?