A police car is approaching you at 26 m/s while you are at rest. The rest frequency of the siren is 1000 Hz. The speed of sound in air is 343 m/s. What frequency do you observe for the siren as the police car is approaching?

Q: A sea monster chases a submarine near the bottom of the North Atlantic Ocean. The submarine is…

A: The speed of the sea monster is 7.11 m/s No, submarine is not in trouble as the speed of submarine…

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 Doppler blood flowmeter emits ultrasound at a frequency of 5.0 MHz. What is the beat frequency…

A: Given that, fs=5.0 MHzvo=0.15 m/s The beat frequency between the waves that are emitted and the…

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

A: Given that:- The frequency emitted is, f0 =1600 Hz. The speed of the cyclist is, v0 =4 m/s. The…

Q: Akiko rides her bike toward a brick wall with a speed of 7.00 m/s while blowing a whistle that is…

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Q: A stationary observer hears a frequency of 1000.00 Hz as a source approaches and a frequency of…

A: the observed frequency in terms of sound frequency can be expressed as f'=v+v0v-vsf the source…

Q: I blow into the lid of an empty bottle to make music. The bottle is 0.27 m deep and sound velocity…

A: Given, Length of bottle l = 0.27 m Velocity of sound v = 331 m/s   We know the expression frequency…

Q: Two trains on separate tracks move toward each other. Train 1 has a speed of 130 km/h; train 2, a…

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Q: One way to tell if a mosquito is about to sting is to listen for the Doppler shift as the mosquito…

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Q: Two cars approach each other, each moving with a speed of 50 m/s, when one car starts to beep its…

A: Wavelength of the horn heard by the other driver. given, speed of carsvc=50 m·s-1frequencyf=475…

Q: he calculates the speed of the train. What value does he find?

A: As per Doppler’s effect, the frequency observed by the student when the train approaching him, can…

Q: A mother hawk screeches as she dives at you. You recall from biology that female hawks screech at…

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Q: Thank you A source of sound waves of frequency 1.00 kHz is stationary. An observer is traveling at…

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Q: Yellow light travels through a certain glass block at a speed of 1.97 ✕ 108 m/s. The wavelength of…

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Q: For an ecology project, Maria is recording some ambient sounds in the woods. A hawk emits a cry with…

A: Given data:  Frequency (f) = 8.06×102 Hz Speed of source (vs) = 16 m/s, towards observer The…

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

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Q: A Doppler blood flowmeter emits ultrasound at a frequency of 5.0 MHz. What is the beat frequency…

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Q: You are in a car moving at 90 km/h and you see someone at the side of the highway. You use your horn…

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Q: You are in auto traveling at 44 m/s toward a pole-mounted warning siren. If the siren's frequency is…

A: In this case, the source of the frequency is fixed and the observer is approaching the source, with…

Q: An ambulance approaches a pedestrian at a constant speed of 25 m/s.  The ambulance siren is at a…

A: The frequency heard by the observer when the source is moving towards the observer is given by…

Q: A bat emits a chirping sound of frequency 67.0 Hz while moth hunting. The chirp lasts for 1.0 ms and…

A: Velocity of sound

Q: A truck travels northbound on a highway at a speed of17m/s. a police car, traveling Northbound…

A: Given Truck velocity in north direction= vdriver= 17[m/s] Police car in north direction=  vpolice…

Q: police car siren has a frequency of 850 Hz. If you hear this siren to have a frequency that is…

A: Given that            Car siren has a frequency of (fsource) = 850Hz            The frequency that…

Q: A truck moving with a speed of 31.8 m/s sounds a 136 Hz horn. What frequency is heard by an observer…

A: The observer status near the tracks is the receiver of the sound wave, and because the truck is…

Q: A fire truck is moving away a stationary observer at 18.2 m/s and has a siren frequency of 790 Hz.…

A: Given    A fire truck is moving away a stationary observer at 18.2 m/s and has a siren frequency of…

Q: An acoustic burglar alarm consists of a source emitting waves of frequency 28.0 kHz.What is the beat…

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Q: You see an approaching train while standing on a railway platform. It blows its whistle, which you…

A: Given: Frequency of the source train: fs=500 [Hz] Frequency heard by stationery observer: f0=100…

Q: You are driving and pull over on the shoulder of the highway, allowing a fire truck to pass. The…

A: Given data: Speed of source (vs) = 29 m/s Source frequency (f) = 688 Hz Speed of sound (v) = 330 m/s…

Q: Sound travels at a speed of v = 1570 m/s in water. While underwater a student hears a f = 1.5 kHz…

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Q: An ambulance siren emits a sound wave with a frequency of 350 Hz. If the ambulance is at rest and a…

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Q: An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the…

A: Given : f1 = 463 Hz f2 = 440 Hz c = 343 m/s

Q: an ultrasonic scan uses the echo waves coming from something moving inside the body and the waves…

A: In an ultrasound scan, we can calculate the beat frequency using the Doppler effect formula for…

Q: You are driving along a highway at 35.0 m/s when you hear the siren of a police car approaching you…

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Q: The speed of ultrasound in human body is 1540 m/s. A procedure is performed with a frequency of 2…

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Q: By comparing the frequency of a received echo with the known frequency of the emitted sound, SONAR…

A: The submarine at rest is capable of generating high-frequency pulses (SONAR) that can be detected by…

Q: Two people are moving relative to each other. One person is blowing a precision whistle that has a…

A: Given:         frequency of the whistle i.e. source frequency f = 392 Hz         Frequency observed…

Q: Q# 03 An ambulance moving at 42 m/s sounds its siren whose frequency is 450 Hz. A car is moving in…

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Q: Dolphins rely on echolocation to be able to survive in the ocean. In a 20∘C20∘C ocean, a dolphin…

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Q: A person is standing on the side of a road when a car approaches them at 50 m/s while honking their…

A: Given,  Speed of car=50 m/s Frequency of horn =600 Hz. Speed of sound =343 m/s We have to find the…

Q: An ambulance is generating a siren sound at a frequency of 2,400 Hz. The speed of sound is 345.0…

A:

Q: What is the frequency a stationary observer hears when a train approaches her with a speed of 30…

A: The equation for the frequency heard by the stationary observer can be given by the equation,