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Physics
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27 Nov 2019

A siren produces a sound whose intensity is 1.0 W/m2.What is the corresponding sound intensity level?

a) 82 dB b) 93 dB c)97 dB d) 120dB

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3 Feb 2019
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A popular car stereo has four speakers, each rated at 60 W. In answering the following questions, assume that the speakers produce sound at their maximum power.

A)   Find the intensity I of the sound waves produced by one 60-W speaker at a distance of 1.0 m.

B) Find the intensity I of the sound waves produced by one 60-W speaker at a distance of 1.5 m.

C) Find the intensity I of the sound waves produced by four 60-W speakers as heard by the driver. Assume that the driver is located 1.0 m from each of the two front speakers and 1.5 m from each of the two rear speakers.

D)The threshold of hearing is defined as the minimum discernible intensity of the sound. It is approximately 10^(-12) W/m2. Find the distance, d from the car at which the sound from the stereo can still be discerned. Assume that the windows are rolled down and that each speaker actually produces 0.06 W of sound, as suggested in the last follow-up comment.

The critical angle for total internal reflection in Lucite is41°. Find its index of refraction.

a) 1.2 b) 1.3 c) 1.5 d) 1.7

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A ray of light passes through a plane boundary separating twomedia whose indexes of refracion are n1 = 1.5and n2 = 1.3. If the ray goes from medium 1 tomedium 2 at an angle of incidence of 45°, what is the angle ofrefraction?

a) 17° b) 21° c)46° d) 55°

*Please list steps on how to solve problem, A+ rating will begiven, thanks!

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