. A siren emitting a frequency of 448 Hz is moving away from a person with a velocity of 84.0 km/h. What is the frequency observed by the person? The speed of sound in air is 344 m/s.

Q: You are driving along a highway at 32 m/s when you hear the siren of an emergency vehicle traveling…

A: Speed of observer is When source and observer approaching each other then the frequency observed by…

Q: A bat at rest sends out ultrasonic sound waves at 60.0 kHz and receives them returned from an object…

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Q: A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1280 Hz. The…

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Q: A train passes by a little boy at the depot. As it moves away from the boy at 65 m/s, the whistle…

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Q: A bat emits a sound at a frequency of 39.0 kHz as it approaches a wall. The bat detects beats with a…

A: Given: Frequency of sound emitted by bat f0 = 39 kHz = 39000 Hz Frequency detects by bat νd = 1070…

Q: A siren emitting a frequency of 446 Hz is moving away from a person with a velocity of 105 km/h.…

A: Given Data : The frequency of the siren is given as fs = 446 Hz. The velocity of the siren with…

Q: Two trains approach each other, each train traveling at 30 m/s.  The engineer on one train sounds…

A: Given: v1 = v2 = 30 m/s, f1 = 177 Hz, Vs = 340 m/s

Q: A fire truck emits a sound with frequency of 775Hz a. What is the frequency detected by stationary…

A: Doppler effect is the change in frequency of a wave due to relative motion of the observer and the…

Q: A sound wave has a frequency of 632 Hz in air and a wavelength of 0.51 m. What is the temperature of…

A: Given, frequency = 632 Hz wavelength = 0.51 m We know, c is the speed of sound

Q: A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1370 Hz. The…

A: Data Given ,  Frequency emits by bird ( fs ) = 1370 Hz Frequency hears by bird watcher ( f0 ) = 1430…

Q: A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1175 Hz. The…

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Q: The frequency of the siren of an ambulance is 900 Hz and is approaching you. You are standing on a…

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Q: A truck travels southbound on a highway at a speed of 14 m/s. A police car, traveling northbound at…

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Q: Two trains approach each other, each train traveling at 26 m/s.  The engineer on one train sounds…

A: To determine: The frequency of passenger heard on the second train   Given: The speed of source,…

Q: A car alarm is emitting sound waves of frequency 520 Hz. You are on a motorcycle, traveling directly…

A: Emitted frequency, f0=520 HzDetected  frequency,  f=490 HzVelocity of sound, u=344m/sSpeed of source…

Q: Doppler ultrasound uses ultrasound to measure blood flow velocities. Suppose that the device emits…

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Q: passenger is standing on a platform. A train is arriving with speed =100m/s. It whistles at point B…

A: Given: v = 100 m/s fwhistle = 100 Hz a = 330 m/s

Q: An ambulance with a siren emitting a frequency of 1600HZ overtakes and passes a cyclist pedaling a…

A: Given: The frequency emitted is 1600 Hz. The speed of the cyclist is 4 m/s. The frequency heard by…

Q: A bystander hears a siren vary in frequency from 584 Hz to 370 Hz as a fire truck approaches, passes…

A: Ans:- Image-1

Q: A bat emits a sound whose frequency is 81.8 kHz. The speed of sound in air at 20.0 oC is 343 m/s.…

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Q: You are driving down the highway at a speed of 45 m/s when you hear the sound of a police siren that…

A: Doppler effect is given by f0=v+v0v+vsfs Here, f0 is the frequency of the observer v is the speed of…

Q: A bird is flying directly toward a stationary bird- watcher and emits a frequency of 1400 Hz. The…

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Q: A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1.30 × 10³ Hz.…

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Q: While running on the sidewalk at 5.2m/s, you hear an ambulance approaching you from behind. It is…

A: The observed frequency (fo) can be found using the Doppler effect formula, fo=fsv+v0v+vs fs is the…

Q: A house alarm is wailing with a frequency of 1350. hertz. What frequency does an observer hear who…

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Q: You are driving along a highway at 25.0 m/s when you hear the siren of a police car approaching you…

A: The  formula for Doppler effect is : f0  =v+v0v+vs fsfo=observer frequency of sound v=speedofsound…

Q: The bat uses its ultrasonic radar instead of sight when flying in the dark. If the bat's own flight…

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