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Doppler effect
Page 6
Questions (319)
An airplane traveling at v = 163 m/s emits a sound of frequency 1730 Hz. At what frequency does a stationary listener hear the
2 answers
asked by
May
508 views
The velocity of sound in the atmosphere is c=300 m/s. An airplane is traveling with velocity v=600 m/s at an altitude of h=8 km
2 answers
asked by
help
542 views
A train moving with speed 72 km h−1 emits a whistle of frequency 600 Hz. A
person is standing stationary on the platform.
2 answers
asked by
bharat
504 views
Two trains approach each other at a railroad crossing. Train 1 travels 80 km/h and Train 2 travels 50 km/h. They both sound
1 answer
asked by
Nicholas
488 views
An airplane traveling at v = 152 m/s emits a sound of frequency 1850 Hz. At what frequency does a stationary listener hear the
2 answers
asked by
Annie
483 views
'a weather station monitors a storm using a radar system. the radio wave pulse emitted is received back at the transmitter after
1 answer
asked by
mmk
480 views
train is approaching the station at a speed of 20m.s sounds a 220 hz horn. What frequency does an observer on the station
2 answers
asked by
drew
477 views
A 5000-Hz car horn is blasted while the car is moving at 35.0 m/s toward a dazed physics student (stationary). What is the
2 answers
asked by
Sneha
470 views
A flying bat emits squeaks at a frequency of 80 kHz. If a stationary observer picks up the frequency of the squeaks as 78 kHz,
1 answer
asked by
Helen
474 views
The 17500 Hz whine of the turbines in the jet engines of an aircraft moving with speed 280 m/s is heard at what frequency by the
2 answers
asked by
Kyle
484 views
An observer detects an apparent frequency of 505 hz coming from a 500 hz source. Which is true?
a. the observer is moving due
1 answer
asked by
Christina
478 views
A stationary horn emits a 135-Hz tone. What frequency is heard by a passenger on a train which is moving towards this horn with
1 answer
asked by
aok
479 views
A train is sounding a horn of constant frequency shows down as it nears a station. What change in pitch is heard by a commuter
1 answer
asked by
Sylvia
485 views
what would the speed of an observer be if a red(4.688x10^14Hz) traffic light appeared green(5.555x10^14Hz) to the observer?
a)
1 answer
asked by
seema
465 views
A stationary speaker is emitting a sound of frequency 1330 Hz. The air has a temperature of ^oF.
Taking right to be positive, a
1 answer
asked by
pamela
452 views
Which principle can be applied to explain what happens to the pitch of a sound as the source comes closer and close,pass the
1 answer
asked by
Nobuhle
462 views
Two trains are moving in opposite diections on parallel tracks and are appoaching a station. Horns on both trains are producing
1 answer
asked by
reddy22
481 views
The 17500 Hz whine of the turbines in the jet engines of an aircraft moving with speed 280 m/s is heard at what frequency by the
1 answer
asked by
Kyle
455 views
apparent change in wavelength of sound waves is 2.5cm when the source of sound is approaching stationary listener with velocity
1 answer
asked by
hussain
442 views
An ambulance car is going with a speed of 60 km/h, while a car is trying to go around it in a circle with a speed 50 km/h. If
1 answer
asked by
aron
433 views
b. If you are cruising down the road at 50 mph and a policeman with a radar gun (wavelength 1 cm) reflects radar light off your
1 answer
asked by
DJ
446 views
2 trains with 132Hz horns approach one another. The slower train has a speed of 25m/s. what is the speed of the fast train if an
1 answer
asked by
Anne
448 views
An ambulance has just passed by your home. You detect that the frequency of the receding siren is
900.0 Hz. If you know that the
1 answer
asked anonymously
44 views
While standing on 3rd street you hear an approaching ambulance. Its siren oscillates in frequency between about 650 Hz and 750
1 answer
asked by
Anonymous
460 views
Use the spectrum readings from the sun (upper) and a star (lower) to answer the question.
An illustration shows the spectrum
1 answer
asked by
Lettuce?
42 views
What happens to sound waves from an object as it moves toward you? (1 point)
• The pitch gets higher because of an increase in
1 answer
asked by
Griffith Femto
27 views
Blueshift is observed when(1 point)
Responses a distant luminous object travels rapidly towards an observer. a distant luminous
1 answer
asked anonymously
63 views
can you change the scenerio and the numbers of this question : Suppose a fire truck is moving toward a stationary observer at
1 answer
asked anonymously
21 views
can you change the story of this word problem and change the numbers:3: Suppose a fire truck is moving toward a stationary
1 answer
asked anonymously
19 views
can you change the scenerio and the numbers of this question the story have to be completly different and original and creative:
1 answer
asked anonymously
23 views
write this in other words
Well, since the universe is expanding it is probably moving away. We know what frequency light we
1 answer
asked by
I LIKE STARS
18 views
Suppose a futuristic spaceship is moving toward a space colony at a velocity of 100,000 km/h. The spaceship is equipped with a
1 answer
asked by
Yt
28 views
What will happen to the pitch when a car with a blowing horn is approaching, according to the Doppler effect?
Responses It will
1 answer
asked anonymously
73 views
An object is moving away from you while making a sound.
What is perceived about the pitch of the sound? Responses It is perceived
1 answer
asked anonymously
25 views
What is the Doppler effect used by weather forecasters to measure?
Responses temperature temperature air pressure air pressure
1 answer
asked anonymously
21 views
A police car moves away from the accident scene at a constant speed with its siren on. A paramedic at the accident observes a 7%
1 answer
asked anonymously
25 views
the siren of a burglar alarm system has a frequency of 960 Hz. During a patrol, a security officer, travelling in his car, hears
1 answer
asked by
khonka mayile
19 views
the siren of a stationary police car emits sound waves of wavelength 0.55m with its siren on the police car bow approaches a
1 answer
asked anonymously
29 views
the siren of a stationary police car emits sound waves of wavelength 0.55m with its siren on the police car bow approaches a
1 answer
asked anonymously
30 views
if the car approaches the listener what will happen to the frequency?
1 answer
asked anonymously
11 views
if the car moves away from the listener what will happen to the frequency?
1 answer
asked anonymously
9 views
a police car moving at a constanr velocity with its siren on passes a starionary listener the frequency changes the sound of
1 answer
asked anonymously
26 views
Which statement is correct as a sound source moves toward a stationary observer? (1 point)
A) The frequency and speed change; the
1 answer
asked anonymously
18 views
A stationary source produces a sound wave at a frequency of 100 Hz. The wave travels at 1125 feet per second. A car is moving
1 answer
asked anonymously
20 views
How is the wavelength of sound affected when a sound source moves toward a stationary observer, and the observer moves away from
1 answer
asked by
Truth
19 views
A moving observer approaches a stationary sound source. What does the observer hear?
an increase in frequency a decrease in
1 answer
asked by
Truth
19 views
A person moves away from a stationary sound source. Which phrase describes the sound perceived by the person?(1 point)
Responses
1 answer
asked anonymously
26 views
A person moved away from a stationary sound source. Which phrase describes the sound perceived by the person?
1 answer
asked by
Diamond
19 views
For an observer in front of a moving source of sound, how will the sound change?
1 answer
asked anonymously
9 views
Hearing a change in sound of an ambulance as it passes by you is an example of what phenomenon?
1 answer
asked anonymously
7 views
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