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Sound
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Questions (509)
Find the number of decibels for the power of the sound given. Round to the nearest decibel.
A rocket engine, 2.42 cross 10−5
2 answers
asked by
tasha
599 views
A train is moving parallel and adjacent to a highway with a constant speed of 23 m/s. A car is traveling in the same direction
3 answers
asked by
anonumous
673 views
The amplitude of a sound wave is measured in terms of its maximum gauge pressure. By what factor does the amplitude of a sound
3 answers
asked by
Justin
514 views
A airplane is approaching you at a speed of 360km/h. If you measure the pitch of its approaching engines to be 512 Hz, what must
5 answers
asked by
justin
490 views
Sound is passing perpendicularly through an open window whose
dimensions are 1.1 m � 0.75 m. The sound intensity level is 95 dB
3 answers
asked by
not sure
2,475 views
An echo is heard from a building 6 s after you blow the cars horn. How far away is the building?
3 answers
asked by
Molly J
632 views
In a pig-calling contest, a caller produces a sound with an intensity level of 110 dB.
How many such callers would be required to
3 answers
asked by
jazz
1,760 views
Karen shouts across a canyon and hears an echo 3.1 s later.
How wide is the canyon? The speed of sound is 343 m/s. Answer in
3 answers
asked by
Lilli
2,874 views
the average speed of sound in water is 1500 m/s. how long would it take a sound to travel 9000m/s
2 answers
asked by
brianca
761 views
A hiker shouts toward a vertical cliff 675 m away. The echo is heard 4.00 s later.
(a) What is the speed of sound of the hiker's
4 answers
asked by
Tiara
1,421 views
A vacuum cleaner has a measured sound level of 75.7 dB. What is the intensity of this sound? Answer in units of W/m^2
3 answers
asked by
Tammi
1,394 views
As a train pulls out of the station going 45 m/s it blasts its horn, what is the frequency heard by the train if the passengers
3 answers
asked anonymously
48 views
A train moving with a speed of 31.8 m/s sounds a 136-Hz horn. Suppose a stationary observer sounds a horn that is identical to
3 answers
asked by
cassie
1,532 views
Boom, Boom- the music goes
Boom, Boom- Feel the beat from head to toes Boom, Boom- my heart is thumping Boom, Boom- It's quite
4 answers
asked by
Anonymous
685 views
I have a few questions that i am not too sure how to figure out...
1- as a racing car zooms by you, its pitch decreases by 20%.
4 answers
asked by
kate
1,106 views
170 students in a lecture hall can scream at 115 dB.
Thus, we should expect that: A. an average student can do 0.68 dB by him or
2 answers
asked by
Courtney
997 views
Two people are talking at a distance of 3.4 m from where you are, and you measure the sound intensity as 1.0 10-7 W/m2. Another
4 answers
asked by
RW
600 views
What is sound of bow
3 answers
asked by
Wisdom
23 views
How to assess when teaching about sound "nk" in grade 1
2 answers
asked anonymously
40 views
How are frequency and sound related?(1 point)
Responses Higher frequencies result in higher pitches. Lower frequencies result in
2 answers
asked by
e
47 views
Nigel turns the amplifier for his guitar up to 10 but even though his guitar sounds loud at that volume he wishes there were
1 answer
asked by
????
106 views
The data shows the speed of sound through air and sea water at 21°C.
How does the speed of sound in sea water compare to the
1 answer
asked by
Anonymous ;)
266 views
If sound travels at 330 m/s, calculate how far fr an observer lightning struck, if the sound took 3 seconds to reach him?
1 answer
asked by
Reotshepile Aobakwe Mogongwa
74 views
A constant tone is being applied to a speaker. The voltage across the speaker is 5 volts. The voltage across the speaker is
1 answer
asked anonymously
98 views
A person is singing in the shower. They notice that as certain notes become very loud, the shower walls vibrate. Which statement
2 answers
asked by
the real BARNY THE DINO :)
119 views
The softness or loudness of a sound is measured in a unit called a _________.
A. wavelength B. soundwave C. measure D. decibel
1 answer
asked anonymously
62 views
If a sound's decibel level is extremely low, it can damage the listener's ears when it hits the eardrums.
A. True B. False
1 answer
asked anonymously
61 views
According to the chart, which medium cannot transmit sound?
1664594 a Stone b Vacuum/Space c Water d Air
1 answer
asked by
Anonymous ;)
115 views
The A note has a frequency of 880 Hz. What is the wavelength if the speed of sound is 343 m/s?
0.39 m 2.57 m 537 m 301,000 m
1 answer
asked by
Smith
186 views
Sound of a bow
Sound of an explosion
1 answer
asked by
clever
200 views
A singer is performing to a crowd. How many times more intense is her singing at 70 dB, compared to a bird whose call is 34 dB?
1 answer
asked by
Molly
607 views
Choose the phrase that would best replace the italicized words in the sentence
A: A pleasant melody ** B: A band playing loudly
7 answers
asked by
Dakelo-Kun
453 views
A person claps his hands near a cliff and hears the eco after 2 seconds if the speed of the sound in air is 340m/s find the
3 answers
asked by
shruthi
560 views
aditi clapped her hands near a cliff and heard the echo after 4 seconds. what is the distance of cliff from her if the speed of
2 answers
asked by
manisha
863 views
Please help me... I have no idea where to begin...A tone of 4000 Hz is being played on a tuning fork. You run toward the tuning
2 answers
asked by
Taylor
494 views
If a boy hears sound of a car after 2 sec find how far he's from the car if the speed of sound in air is 335m/s
1 answer
asked by
sb
338 views
A speaker has a diameter of 0.303 m. (a) Assuming that the speed of sound is 343 m/s, find the diffraction angle è for a
1 answer
asked by
Japhet
459 views
I am having trouble coming up with an answer to this, and I can't seem to find it in my textbook....can I get a little help?
QUES
3 answers
asked by
cookiemonster
451 views
Which units measure the amplitude of sound waves?
seconds decibels watts hertz I think its Watts
3 answers
asked by
Sara
538 views
Find the number of decibels for the power of the sound given. Round to the nearest decibel.
A rocket engine, 2.64 cross product
1 answer
asked by
tonisha
404 views
a sound wave is prouduced. 3seconds later its echo was heard.what is the distance between the reflecting surface and source. Try
1 answer
asked by
scl
446 views
A spaceship lands on a new planet. the crew decides to measure the speed of sound in the planets atmosphere. taking a tube with
1 answer
asked by
Kayla
760 views
What frequency is heard by an observer who hears the 450 Hz siren on a police car
traveling at 35 m/s away from her? Assume that
2 answers
asked by
Ben
580 views
Consider a room that is 6m long, 5m wide and 3m high and whose walls, floor and ceiling have the same sound absorption
2 answers
asked by
qwerty
589 views
An approaching train produces the RP1 signal (attention signal) at 600 Hz . The train moves with the speed of 120 km. What is
2 answers
asked by
enrique
502 views
A police officer with good ears hears an approaching motorcycle. The engine sound he eats as the bike approached is 195 Hz.
a) Is
2 answers
asked by
Liz
1,019 views
A sound of 7 kHz frequency is well within the normal hearing range of most people.
True. False. << 2. Sound is a transverse
5 answers
asked by
Chelsea
784 views
Two speakers are separated by a distance of 3.4 m. A point P is placed at 5.7 m from one of the speakers so that they form a
1 answer
asked by
eliz
900 views
A car horn is pitched at 520 Hz. The car travels along a straight road at a speed of 25 m/s. towards an observer walking at 2
6 answers
asked by
Sher
525 views
Suppose a sound of frequency 1200 Hz is emitted from a speaker 15 meters away from you. At YOUR location, the intensity is
1 answer
asked by
Anonymous
351 views
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