QUESTION The power output of a sound system is increased by a factor of 25. By...
QUESTION The power output of a sound system is increased by a factor of 25. By what factor should you adjust your distance from the speakers so the sound intensity is the same? PRACTICE IT Use the worked example above to help you solve this problem. A small source emits sound waves with a power output of 82.9 w. (a) Find the intensity 3.05 m from the source. W/m2 (b) At what distance would the intensity be one-fourth as much...
An outside loudspeaker (considered a small source) emits sound waves with a power output of 111 W (a) Find the intensity 10.7 m from the source. 0.76 Your response differs from the correct answer by more than 100%, w/m? (b) Find the intensity level in decibels at that distance. 118.8 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation Cary out all inter to...
An outside loudspeaker (considered a small source) emits sound waves with a power output of 111 w (a) Find the intensity 10.7 m from the source W/m2 (b) Find the intensity level in decibels at that distance. dB (c) At what distance would you experience the sound at the threshold of pain, 120 dB? Need Help? Read 11. -/2 points SerCP10 14 P023 My No A commuter train passes a passenger platform at a constant speed of 42.1 m/s. The...
A point source of sound generates a 200 Hz tone. The wave has an intensity of 2.2×10−8 W/m2 at a distance of 3 m from the source. Find the total sound power at the source. At what distance from the source is the decibel level below 15 dB? What is the intensity of the sound at this distance?
A point source emits sound waves with a power output of 100 watts. What is the sound level (in dB) at a distance of 10 m? 16-5
A listener increases his distance from a sound source by a factor of 5.45. Assuming that the source emits sound uniformly in all directions, what is the change in the sound intensity level in dB?
A sound wave radiates from a source in all directions. If the power of the sound source is 200 watts, then the intensity level of the sound wave 1000 m from the source is (in dB)
A listener increases his distance from a sound source by a factor of 2.29. Assuming that the source emits sound uniformly in all directions, what is the change in the sound intensity level in dB?
The source of a sound wave has a power of 3.88 ?W. If it is a point source, (a) what is the intensity and (b) the sound level at a 5.61 m distance?
The source of a sound wave has a power of 8.29 ?W. If it is a point source, (a) what is the intensity and (b) the sound level at a 3.99 m distance?