Question

Consider a speaker emitting a sinusoidal sound wave with a frequency of 725 Hz uniformly in all directions. The power of the wave is 246 W. The speed of the sound waves is 340 m/s. A. What is the wave number of these sound waves? Give your answer to two decimals in units of rad/m. B. A listener is at a point 50 meters away from the speaker. What sound intensity level does this listener hear? Give your answer in decibels.

Name: consider a speaker emitting a sinusoidal sound wave with a frequency of 725 hz uniformly in all directions the power of the wave is 246 w the speed of the sound waves is 340 ms a what is the 80911
Uploaded: 2022-08-21T10:54:49-08:00
Duration: 2 min 9 s
Channel: Khoobchandra Agrawal
Description: consider a speaker emitting a sinusoidal sound wave with a frequency of 725 hz uniformly in all directions the power of the wave is 246 w the speed of the sound waves is 340 ms a what is the 80911

          Consider a speaker emitting a sinusoidal sound wave with a
frequency of 725 Hz uniformly in all directions.  The power of
the wave is 246 W.  The speed of the sound waves is 340
m/s.
 A. What is the wave number of these sound waves? 
Give your answer to two decimals in units of rad/m.
B. A listener is at a point 50 meters away from the
speaker.  What sound intensity level does this listener
hear?  Give your answer in decibels.

Added by Josep E.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Khoobchandra Agrawal

08/21/2022

Step 1

Given: Frequency, f = 725 Hz Speed of sound, v = 340 m/s Wave number, k = 2πf/v k = 2π * 725 / 340 k ≈ 13.91 rad/m Show more…

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Consider a speaker emitting a sinusoidal sound wave with a frequency of 725 Hz uniformly in all directions. The power of the wave is 246 W. The speed of the sound waves is 340 m/s. A. What is the wave number of these sound waves? Give your answer to two decimals in units of rad/m. B. A listener is at a point 50 meters away from the speaker. What sound intensity level does this listener hear? Give your answer in decibels.