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Acoustics
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Questions (358)
The sound intensity of a rainfall is 4.5×10^-9 W/m^2. Find the corresponding sound intensity level.
1 answer
asked by
Nicole
313 views
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 59 dB by an observer 14 km
1 answer
asked by
Anonymous
501 views
The overall length of a piccolo is 30.6 cm. The resonating air column vibrates as in a pipe that is open at both ends. Assume
2 answers
asked by
Sarah
616 views
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 53 dB by an observer 11 km
2 answers
asked by
Anonymous
1,098 views
The overall length of a piccolo is 30.6 cm. The resonating air column vibrates as in a pipe that is open at both ends. Assume
1 answer
asked by
Sarah
503 views
At 29'C, the speed of sound is about 3.49x10^2 meters per second. Find the distance traveled by sound in one hour.
2 answers
asked by
sella
513 views
if you stand at one side os a stage with hard parallel side walls 17m apart and make a handclap, how often do the flutter echoes
1 answer
asked by
AAA
435 views
Show that, if one sound is 10 decibels louder than a second sound, than the first sound is 10 times as intense as the second
2 answers
asked by
Anonymous
606 views
A half-open pipe is constructed to produce a fundamental frequency of 230 Hz when the air temperature is 17 °C. It is used in
2 answers
asked by
sara
475 views
Hello,
I am kind stuck on this question In the lab you discover a relationship between the temperature of the air and the speed
2 answers
asked by
Jennifer
567 views
Impulse noise is a sound that rises rapidly to a sharp peak and then quickly fades.True or false
3 answers
asked anonymously
17 views
A sound is traveling through air with a temperature of 35 0C. The sound wave has a wavelength of 0.75 meters. What is the
3 answers
asked by
LinWa
853 views
A person standing close to a railroad crossing hears the whistle of an approaching train. He notes that the pitch of the whistle
4 answers
asked by
Joan
2,106 views
A middle C (262 Hz) on a flute is heard when an air column that is 0.63 meters long resonates at zero Celsius.
a.How fast will
1 answer
asked by
Sallias
463 views
Use the following Info. At sea level the speed of sound in air is linearly related to air temp. If 35 degrees Celsius sound
5 answers
asked by
Kaela
1,072 views
A copper rod is given a sharp compressional blow at one end. The sound of the blow, traveling through air at -2.79 degrees
1 answer
asked by
Ashleigh
464 views
1.A wall between two rooms is 20 x 9 ft. The wall construction has Transmission Loss 50 dB at 1000 Hz. In the wall is a small
1 answer
asked by
sandhu
512 views
1.A wall between two rooms is 20 x 9 ft. The wall construction has Transmission Loss 50 dB at 1000 Hz. In the wall is a small
1 answer
asked by
sandhu
427 views
The range of human hearing is roughly from twenty hertz to twenty kilohertz. Based on these limits and a value of 343 m/s for
2 answers
asked by
Anonymous
881 views
A supersonic plane flies directly over you at 1.8 times the sound speed. You hear its sonic boom 20s later.
What is the plane's
3 answers
asked by
Mike
1,186 views
Does sound travelfaster in warm or cool air?
1 answer
asked by
Anonymous
277 views
The Political Noise Problem. The amount of background noise is important to television news reporters. One station developed the
4 answers
asked by
maria
469 views
Why does a radio seem louder in an empty room than outdoors?
4 answers
asked by
Hunter
149 views
At a concert, would the speed of sound be different for different frequencies? Why or why not?
4 answers
asked by
JOC
479 views
What is a real-life appliction of resonance in tubes? I've already written down musical intruments like the organ and flut and
4 answers
asked by
Lena
330 views
Between a bottle with a lot of water medium water in a bottle with little water which bottle will produce the loudest sound when
3 answers
asked anonymously
46 views
Between a bottle with little water and lots of water in a bottle with medium water which bottle will produce the lowest sound
3 answers
asked anonymously
43 views
The seventh harmonic of a one end closed pipe organ has a frequency of 732 Hz, on a day when the temperature is 10 degrees
2 answers
asked by
Carl
495 views
Pour different amounts of water into three identical glass bottles. Which has the highest tone, which has the lowest tone. Why?
1 answer
asked by
isaiah
461 views
Why is an echo weaker than the original sound?
1 answer
asked by
Rachel
410 views
I need some help with the following problems. I got no idea how to do it...PLEASE HELP!!!!THANKS A LOT!!
A hunter is standing on
2 answers
asked by
Zoe
544 views
Two identical tuning forks can oscillate at 329.6 Hz. A person is located somewhere on the line between them. The speed of sound
1 answer
asked by
COFFEE
1,110 views
When the vibrating column of air inside a woodwind or brass instrument is made longer, the pitch
(1 point) Responses gets higher.
4 answers
asked anonymously
90 views
14.
The speed of sound depends on (1 point) A.the loudness of the sound. B.the pitch of the sound. C.the source of the sound.***
6 answers
asked by
jeje
1,757 views
The fundamental of an organ pipe that is closed at one end and open at the other end is 261.6 Hz ( middle C ). The second
4 answers
asked by
AfterLife
1,695 views
The back wall of an auditorium is 29.0 m from the stage. If you are seated in the middle row, how much time elapses between a
5 answers
asked by
Jimmy
1,518 views
Speed of Sound in Water at Different Temperatures and Salinities
Temperature (°C) 0 10 20 30 Speed of sound in freshwater ( m /
1 answer
asked by
Answer
54 views
If the speed of sound in air is 340 m/s, what is approximately the length of a shortest air column closed at one end that will
4 answers
asked by
Aaron
1,402 views
A speaker is designed for wide dispersion for a high frequency sound. What should the
diameter of the circular opening be for a
2 answers
asked by
Anonymous
1,355 views
A parabolic microphone has a cross-section in the shape of a parabola. The microphone is placed at the focus of the parabola. If
2 answers
asked by
lee
1,313 views
A rock group is playing in a bar. Sound
emerging from the door spreads uniformly in all directions. The intensity level of the
2 answers
asked by
Anonymous
1,216 views
How does pressure work as a restoring force to create a sound wave?
2 answers
asked by
John
1,144 views
Calculate the reflected percentage of an ultrasound wave passing from human muscle into bone. Muscle has a typical density of
1 answer
asked by
Tony
1,161 views
A two end open pipe organ's sixth harmonic is produced by a tuning fork with a frequency of 440 Hz. If it is 17 degrees Celsius,
3 answers
asked by
Harmonic
1,137 views
A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the lake.
4 answers
asked by
kassy
1,133 views
The cabin noise level of the new Airbus 380 is 5 decibels lower than that of a 747 Jumbo Jet. By what factor does the noise
3 answers
asked by
john
1,153 views
The density of a sample of air is 1.235 kg/m3, and the bulk modulus is 1.42 · 105 N/m2.
a) Find the speed of sound in the air
2 answers
asked by
Urgent
1,097 views
Taking a decibel to be an increase in pressure of 12.2%, by what factor has the pressure changed when the sound level has fallen
3 answers
asked by
Steeve
1,065 views
A 350-Hz tuning fork is held above a closed pipe. Find the spacings between the resonances when the air temperature is 20°C.
2 answers
asked by
lisa
1,032 views
A spherical source radiates sound uniformly in all directions. At a distance of 12 m, the sound intensity level is 100 dB. At
1 answer
asked by
T
981 views
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Parent Categories (14)
Engineering
Mechanics
Physical Science
Physics
Pitch
Science
Science and Technology
Science/Technology
Sound
Sound Engineering
Sound waves
Waves
Waves and Sound
Waves and Vibrations