A train approaches a platform at a speed of 22 km/h while it blows its whistle. Someone on the platform hears the whistle at 342 Hz. Calculate the actual frequency of the whistle. (speed of sound = 343 m/s)

Q: A motorcyclist is traveling 31 m/s due west relative the ground. A fire truck is traveling on the…

A: We are given velocity of motorcyclist and truck. We are given frequency of the sound. We are also…

Q: An eagle flying at 28 m/s emits a cry whose frequency is 370 Hz. A blackbird is moving in the same…

A: Given:-  The velocity of the eagle fly is v = 28 m/s  The frequency of the cry is f = 370 Hz.  The…

Q: An organ pipe is open at both ends. It is producing sound at its second harmonic, the frequency of…

A: We have an open organ pipe which is producing a sound of frequency f=318.1 Hz at its second harmonic…

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

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Q: A male eagle is flying toward his mate at 80.0 m/s while singing at a frequency of 1900 Hz.  If the…

A: The doppler effect is the change in frequency of a wave relative to an observer or source…

Q: Problem 10:  A student knows that an ambulance siren has a frequency of fs = 395 Hz. He measures,…

A: Sound waves are longitudinal waves. Their direction of propagation is parallel to the direction of…

Q: On the planet Arrakis a male ornithoid is flying toward his mate at 25.0 m/s while singing at a…

A: It is given that, vs=25 m/sfs=1200 HzfL=2400 Hz

Q: An ambulance travels down a highway at a speed of 34 m/s. Its siren emits sound at a frequency of…

A: The source and observer are basically approaching each other here. In this case, the formula for the…

Q: Two trains approach each other, each train traveling at 31 m/s. The engineer on one train sounds his…

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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: The siren of a ambulance emits a frequency of 1700 Hz. A stationary observer detects a frequency of…

A: Given that:- f=1700 Hzf'=1825 Hzv=343 m/svs=? Since, observed frequency is more than the actual…

Q: A tube open at both ends is 86 cm long. What are its first three harmonic frequencies? The speed of…

A: Given data:  Tube open at both ends Tube length (L) = 86 cm = 0.86 m Speed (v) = 344 m/s Required:…

Q: A car moving at 20.0 m/s passes a stationary ambulance, the siren of which produces a frequency of…

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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 motorcyclist is traveling at 23 m/s away from a police car at rest. If the policeman blows his…

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

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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 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: 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: (a) What frequency is received by a person watching an oncoming ambulance moving at 110 km/h and…

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Q: A baseball hits a car, breaking its window and triggering its alarm which sounds at a frequency of…

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Q: A bird flying directly toward a stationary bird watcher and emits a frequency of 1100 Hz. The bird…

A: Given that,Frequency emitted by the bird, fs=1100 HzFrequency heard by the bird watches, f0=1150…

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

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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: alarm in a parked car is going off at a frequency of 855.2 Hz. The speed of sound is 343 m/s. As you…

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Q: An eagle flying at 28 m/s emits a cry whose frequency is 370 Hz. A blackbird is moving in the same…

A:

Q: What is the first overtone frequency for an organ pipe 2.00 m in length, closed at one end? The…

A: Given Length of closed organ pipe = L = 2.00 m Speed of sound = v = 344 m/s We have to calculate…

Q: A car moving with a speed of 27 m/s sounds its siren with a frequency of 1208 Hz. A motorcyclist…

A: The wall acts like a mirror and the reflected sound is equivalent to another car moving left with…

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

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Q: The security alaram on a parked car goes off and produces a frequency of 1080 Hz. The speed of sound…

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Q: The siren of a policy car at rest emits a frequency of 1600 Hz. What frequency do you detect if you…

A: The frequency of sound emitted by the source (policy car) is given as, f  = 1600 Hz The speed of…

Q: A 520 Hz whistle is moved toward a listener at a speed of 20 m/s. At the same time, the listener…

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Q: A train approaches a station platform at a speed of 10 m/s, blowing its whistle at a frequency of…

A: Given that :vt=10 m/svp=1m/sft=100 Hzvs=342 m/s

Q: Problem 9:  One day when the speed of sound in air is 343 m/s, a fire truck traveling at vs = 34 m/s…

A: Since you have asked multiple questions in a single request, we would be answering only the first…

Q: A bungee jumper jumps from rest and screams with a frequency of 403 Hz. The air temperature is 20…

A: When the source of sound and the observers are in relative motion, the frequency of sound heard…

Q: A train is moving at a speed of 50 m/s with its whistle on, the frequency of the whistling sound…

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Q: As you stand by a railroad track, a train approaches with its whistle blowing.   After the train has…

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Q: An ambulance at rest is sounding its siren with a frequency of 512 Hz. A jogger is running toward…

A: Given,  Ambulance is at rest.  Frequency of siren = 512 Hz Velocity of jogger = 10 m/s Speed of…

Q: An alarm in a parked car is going off at a frequency of 843.0 Hz. The speed of sound is 343 m/s. As…

A: Solution: given that frequency of source, fs = 843 Hz  speed of sound, c = 343 m/s observed…

Q: If the wind were blowing at 25.0m/s in the same direction you are driving, what frequency would you…

A: This is the case of apparent frequency i.e frequency received by the observer is not the original…

Q: We are in an automobile traveling at 45.7 mph (mi/h) down a street. We approach a tall brick wall…

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Q: An airplane traveling at half the speed of sound emits a sound of frequency 5.00 kHz. At what…

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Q: At rest, a car’s horn sounds at a frequency of 550Hz. When the horn is sounded, while the car is…

A: f0 = 550 Hz Speed of cyclist , V = 8.5 m/s frequency overloads ,  λ = 575 Hz  To find = a) Speed of…