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Doppler effect
Page 3
Questions (319)
The siren in an ambulance has a frequency (according to you) of 1100 hz as it moves towards you at a speed v. It then makes a
2 answers
asked by
J Velji
758 views
Two trains on separate tracks move toward one another. Train 1 has a speed of 125 km/h and train 2 a speed of 100.0 km/h. Train
1 answer
asked by
julie
752 views
An ambulance is approaching at 80 mph (35.8 m/s). If the siren produces a continuous 400 Hz tone, what frequency do you hear?
2 answers
asked by
Traci
565 views
5. Blueshift is observed when
* 1 point a luminous object travels alongside an observer a distant luminous object travels rapidly
3 answers
asked by
help me cuz
176 views
Why do scientists observe blueshift in certain stars?(1 point)
Responses Light wave frequencies increase as an object moves
7 answers
asked by
Boo <3
114 views
Blueshift is observed when
* 1 point a luminous object travels alongside an observer a distant luminous object travels rapidly
3 answers
asked by
Shadow
64 views
Blueshift is observed when(1 point)
Responses a distant luminous object travels rapidly towards an observer. a distant luminous
3 answers
asked by
billy bob joe
39 views
Select the correct answer from each list.(2 points)
When a vibrating object is moving an observer, the measured frequency of the
3 answers
asked by
billy bob joe
90 views
In the diagram, what is the stick figure in the road experiencing in terms of the Doppler effect?
a Lower pitch sound due to a
3 answers
asked anonymously
46 views
Blueshift is observed when
a a luminous object is stationary compared to an observer. b a luminous object travels alongside an
3 answers
asked anonymously
43 views
You're standing by the roadside as a truck approaches, and you measure the dominant frequency in the truck noise at 1105Hz . As
2 answers
asked by
Mike
559 views
A high-velocity star HVS 1 is moving at 600 km/s, 0.2% speed of light. Assuming the HVS 1 is moving away from us, and that its
2 answers
asked by
Mark
472 views
A 2.50-kg Pendulum is attatched to a string 11.4m stringis pulled aside until it is.386m above its lowest position and released.
3 answers
asked by
Moe
1,077 views
A car moving at 16.0 m/s, passes an observer while its horn is pressed. Find the difference between the frequencies of sound
4 answers
asked by
sophie
1,514 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
When a vibrating object is moving an observer, the measured frequency of the vibrations will be lower than if the object and
3 answers
asked anonymously
63 views
Blueshift is observed when(1 point) Responses a distant luminous object travels rapidly towards an observer. a distant luminous
3 answers
asked anonymously
55 views
How does a Doppler effect aid police in detecting speeding motorist?
2 answers
asked by
Rachel
516 views
A car moving at 16.0 m/s, passes an observer while its horn is pressed. Find the difference between the frequencies of sound
1 answer
asked by
Jon
728 views
As a sound source moves away from a stationary observer, the number of waves will.
decrease
3 answers
asked by
Jon
485 views
Using the approximation formula for the doppler shift, fo=fs(1+Vrel/c), one finds that a source is moving aways at 0.60c. What
2 answers
asked by
Gulzaman
566 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
1,108 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
Which situations might cause two observers (A and B) to measure different frequencies for the same vibrating object? Select the
1 answer
asked by
b33ft0ads
67 views
a car, moving at 100 mi/hr, passes a stationary police car whose siren has a frequency of 500 Hz. what is the frequency change
3 answers
asked by
OMAR
2,743 views
A bell with a fundamental frequency of 880 Hz is moving toward an observer at 3.5 m/s. If the speed of sound is 343 m/s, what
3 answers
asked by
Jenn
2,360 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
Which situations might cause two observers (A and B) to measure different frequencies for the same vibrating object? SELECT THE
6 answers
asked by
sleepy
127 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
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
Why do scientists observe blueshift in certain stars?(1 point)
Responses Stars with higher temperatures emit more light waves at
1 answer
asked by
taylor swift
110 views
Blueshift is observed when _________________________________________.(1 point) Responses a distant luminous object travels
1 answer
asked by
b33ft0ads
39 views
The effect that shows an increase or decrease in the frequency of waves relative to an observer, due to motion of the wave
1 answer
asked by
b33ft0ads
47 views
Blueshift is observed when:(1 point)
Responses a luminous object is stationary compared to an observer. a luminous object is
1 answer
asked anonymously
61 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
The Doppler effect occurs when
a) a source of sound moves toward a listener b) a listener moves toward a source of sound c) a
3 answers
asked by
anonymous
1,389 views
A light-rail commuter train blows its 200 Hz horn as it approaches a crossing. The speed of sound is 336 m/s.
a)An observer
3 answers
asked by
Ben
1,366 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
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
A commuter train passes a passenger platform at a constant speed of 40.0 m/s. The train horn is sounded at its characteristic
4 answers
asked by
julie
1,343 views
A stationary whistle emits a sound of 188 Hz. If passengers in a car hear the whistle with a frequency of 198 Hz, how fast was
2 answers
asked by
Sav
1,300 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 car sounds its horn (502 Hz) as it approachs a pedestrian by the side of the road. The pedestrian has perfect pitch and
2 answers
asked by
Melissa
1,259 views
In one of the original Doppler experiments, one tuba was played on a moving platform car at a frequency of 75 Hz, and a second
4 answers
asked by
Anonymous
1,253 views
A train whistle is heard at 280Hz as the train approaches town. The train cuts its speed in half as it nears the station, and
1 answer
asked by
henry
1,232 views
A bat flying at 6.00 m/s emits a chirp at 40.0 kHz. If this sound pulse is reflected by an insect moving away from the bat at
2 answers
asked by
Elisa
1,211 views
You're in an auto traveling at 25.0m/s toward a pole mounted warning siren. If the siren's frequency is 365 Hz, what frequency
2 answers
asked by
jess
1,153 views
A speaker which produces a frequency of 312 Hz is moving away from an observer and towards a wall at 3 m/s when it is 30 degrees
3 answers
asked by
Doppler
1,151 views
Blueshift is observed when(1 point) Responses a luminous object travels alongside an observer. a luminous object travels
1 answer
asked anonymously
40 views
1)As a sound source moves away from a stationary observer, the number of waves will.
decrease 2)How fast should a car move toward
5 answers
asked by
Jon
1,176 views
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