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Sound waves
Page 7
Questions (1,086)
A bat flying in a cave emits a sound and receives its echo 0.1s later. Show that the distance to the wall of the cave is 17m.
Tha
2 answers
asked by
Laticia
670 views
Imagine you are in an open field where two loudspeakers are set up and connected to the same amplifier so that they emit sound
3 answers
asked by
Mikhail Moskvich
939 views
A 50 dB sound wave strikes an eardrum whose area is 5.0 x 10^-5 m^2.
A.)How much energy is absorbed by the eardrum per second?
1 answer
asked by
L
923 views
A violin string has a length of 0.350 m and is tuned to concert G, with f = 392 Hz.
Where must the violinist place her finger to
1 answer
asked by
bre
984 views
A particularly beutiful note reaching your ear from a stradivarius violin has a wavelength of 39.1cm. The room is slightly warm,
2 answers
asked by
genevieve
529 views
If the length of a guitar string is 90 cm, and the speed of sound is 343 m/s that day, what is the 3 rd fundamental frequency of
1 answer
asked by
HelpNEeded
424 views
I need to check my answers!!
Which of these is not in the family a. sound b. light c. infrared radiation (answer) d. radio waves
1 answer
asked by
Liz
1,088 views
Two tuning forks are struck at the some time. One tuning fork has a requency of 20 Hz while the second tuning fork has a
2 answers
asked by
john brown
510 views
1-A tunning fork has a frequency of 440Hz. The string of a violin and this tuning fork, when sounded together, produce a beat
4 answers
asked by
Cynthia
1,273 views
Sound travels about 343 meters per second. The function d(t) = 343t gives the distance d(t) in meters that
sound travels in t
3 answers
asked anonymously
89 views
A tuning fork with a frequency of 440 Hz is held above a resonance tube that is partially filled with water. Assuming that the
2 answers
asked by
Robbie
1,027 views
A speaker which produces a frequency of 400 Hz is moving away from an observer and towards a wall at 5 m/s when it is 23 degrees
7 answers
asked by
Patrick
511 views
A sound wave travels in air at a frequency of 500 Hz. If part of the wave travels from air into water, does its frequency
1 answer
asked by
Sam
1,266 views
The sound intensity at a certain distance from a car is 2*10^-7 W/m^2.
- If the distance is tripled, what is the new intensity of
3 answers
asked by
Ziyi
559 views
The sound level in decibles, B, can be found using the equation B=10 log(I/10^-12). what is the sound intensity when the decible
1 answer
asked by
URGENT!!!!!!!!!
469 views
In the first overtone, an organ pipe that is open at one end and closed at the other end produces the note concert A, of 440 Hz.
1 answer
asked by
Jen
652 views
An explosion occurs that releases 2500J of energy in 110ms, 1.5% of which goes into a spherical sound wave traveling out equally
1 answer
asked by
manny
443 views
8. A large explosion is heard by two people. The first is located 10 meters away and the second is located 40 meters away. By
1 answer
asked by
gomez
451 views
The intensity of a certain sound wave is 6 ì W.cm2. if its intensity is raised by 10 decibels, the new intensity (in ìW/cm2)
1 answer
asked by
Damon
752 views
For two sounds whose sound levels differ by 69 dB, find the ratios (greater value / smaller value) of the following values.
(a)
1 answer
asked by
COFFEE
618 views
The source of a sound wave has a power of 2.50 µW. Assume it is a point source.
(a) What is the intensity 6.70 m away? I used I
1 answer
asked by
COFFEE
937 views
At rest, a car’s horn sound at the note A(440Hz) The horn is sounded while the car is moving down the street. A bicyclist
1 answer
asked by
sammy
1,141 views
what a vibrating object dose to the air particles around it?
The vibrating object sends out a pressure-variation (sound) wave of
1 answer
asked by
sue
590 views
A fan at a rock concert is 45.0 m from the stage, and at this point the sound intensity level is 108 dB. Sound is detected when
7 answers
asked by
Kyle
2,761 views
Sound travels about
340 m/s. The function d(t)=340t gives the distance d(t), in meters, that sound travels in t seconds.
1 answer
asked anonymously
36 views
A length of organ pipe is closed at one end.
If the speed of sound is 344 m/s, what length of pipe is needed to obtain a funda-
4 answers
asked by
AJ
2,470 views
Which of the following factors determines the loudness of a sound?
A. Frequency of the sound wave. B. Amplitude of the sound
4 answers
asked by
Callie
2,365 views
a)What frequency is received by a person watching an oncoming ambulance moving at 120 km/h and emitting a steady 700 Hz sound
4 answers
asked by
Caitlin
2,301 views
6.
Sonar is used to inspect pipelines and bridge foundations. In this scenario, sonar takes advantage of the fact that (1 point)
5 answers
asked by
jeje
2,356 views
At 25°C, sound can travel 100 meters across a football field in 0.29 seconds. Determine the velocity of these sound waves in
7 answers
asked by
Anonymous
2,170 views
Two identical speakers, labeled Speaker 1 and Speaker 2, are playing a tone with a frequency of 175 Hz in phase. The centers of
2 answers
asked by
Jason
2,010 views
When the energy of a sound wave is transferred to a particle of a medium and causes it to vibrate and generate hear, the sound
3 answers
asked by
anonymous
1,799 views
Residents of Hawaii are warned of the approach of a tsunami by sirens mounted on the tops of towers. Suppose a siren produces a
3 answers
asked by
Mike
1,794 views
A bat moving at 5 meters per second is chasing a flying insect, if the bat emits a 40 khz chirp and receives back an echo at
3 answers
asked by
Chris
1,813 views
As Section 27.5 discusses, sound waves diffract or bend around the edges of a doorway. Larger wavelengths diffract more than
3 answers
asked by
Beth
1,763 views
You are standing at the midpoint between two speakers, a distance D away from each. The speakers are playing the exact same
4 answers
asked by
Patricia
1,746 views
A sailor strikes the side of his ship just below the waterline. He hears the echo of the sound reflected from the ocean floor
4 answers
asked by
Sandhya
1,546 views
A blind person walks the neighborhood making loud clicking noises with his tongue. He doesn't use a walking stick nor does he
4 answers
asked by
Callie
1,522 views
If you shout across a canyon and hear an echo 3.6 s later, how wide is the canyon?
4 answers
asked by
paige
1,492 views
What is the relationship between the pitch and frequency of a sound wave?
1 answer
asked by
Answer
12 views
Summarize
Sound Waves: The frequency of sound waves can be measured using a device called a microphone. The microphone converts
1 answer
asked by
Answer
44 views
to an observer the pitch of the stationary source of the sound appears to be reduced by 20% if speed of sound is 340m/s then
3 answers
asked by
ashu
1,437 views
A tube is open only at one end. A certain harmonic produced by the tube has a frequency of 445.0 Hz. The next higher harmonic
3 answers
asked by
Cavin
1,407 views
A child swinging on a swing set hears the sound of a whistle that is being blown directly in front
of her. At the bottom of her
4 answers
asked by
Trace
1,343 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
3 answers
asked by
Aaron
1,341 views
The sound from a mosquito is produced when it beats its wings at the average rate of 559 wing beats per second. What is the
2 answers
asked by
Sarah
1,327 views
A cop cars siren has a frequency of 700Hz. If you are standing on the sidewalk as the cop car approaches you at the speed of 25
2 answers
asked by
Amina
1,331 views
The frequency of an ambulance's siren is 700 Hz.
If a pedestrian on the side of the road hears the siren at 756 Hz, approximately
1 answer
asked by
kim..need help
1,292 views
A fan at a baseball game is 100.0m from the home plate. If the speed of sound is 350 m/s , how long after the batter actually
4 answers
asked by
Melissa
1,266 views
Given the information which statements are true or false?
We know that when we pluck a string on an instrument the resulting
5 answers
asked by
Student in Need
1,277 views
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Parent Categories (26)
Acoustics
Communication
Energy and Power
Mechanical Waves
Mechanics
Music
Physical Science
Physics
Physics of Sound
Physics, Sub-sub-category: Sound Waves
Physics/Science
Properties of Matter
Properties of Waves
Reflection of Waves
Science
Science and Physics
Science and Technology
Wave Mechanics
Wave phenomena
Wave Properties
Waves
Waves and Acoustics
Waves and Frequency
Waves and Optics
Waves and Oscillations
Waves and Vibrations