A train traveling at 40 m/s has a horn that vibrates at a frequency of 200 Hz. Calculate the frequency of the horn's sound heard by a bicycling rider traveling at 10 m/s in the same direction as the train when the bike is ahead of the train

Q: A train sounds its whistle as it approaches a tunnel in a cliff. The whistle produces a tone of…

A: Given: The frequency of the whistle = 650 Hz Speed of the train = 21.2 m/s

Q: A train on one track moves in the same direction as a second train on the adjacent track. The first…

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Q: A stationary motion detector sends sound waves of frequency 0.150 MHz toward a truck approaching at…

A: Given, frequency of original sound, f = 0.150 MHz            Speed of Truck vo = vs = 45 m/s…

Q: A train whistle emits a sound at a frequency of 300 Hz when it is stationary. If you are at the…

A: The frequency of the sound heard by the observer when the source is moving to a stationary observer…

Q: An ambulance with a siren emitting a whine at 1610 Hz overtakes and passes a cyclist pedaling a bike…

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Q: A trumpet player on a moving railroad flatcar moves toward a second trumpet player standing…

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Q: Two train whistles have identical frequencies of 180 Hz. When one train is at rest in the station,…

A: speed of sound = 345 m/s frequency emitted = 180 Hz Frequency heard = 3.5 + 180  = 183.5 Hz

Q: A police car is chasing a speeding Porsche 911. Assume that the Porsche’s maximum speed is 80.0 m/s…

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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: Q5. A 50-N block hangs from a string that passes over a light frictionless pulley. The string is…

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Q: An ambulance with a siren emitting a whine at 1630 Hz overtakes and passes a cyclist pedaling a bike…

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Q: The car drives at a speed of 80 km/h past the factory siren, which produces sound with a constant…

A: Given data: Speed of the car v=80km/h Frequency f=480 Hz

Q: Standing at a crosswalk, you hear a frequency of 600 Hz from the siren of an approaching ambulance.…

A: Given data The frequency of the siren from approaching the ambulance is f1 = 600 Hz. The frequency…

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

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Q: A train moving at a speed of 40 m/s sounds its whistle, which has a frequency of 500 Hz. Determine…

A: Train speed = V = 40 m/s Speed of sound = v = 343 m/s Original frequency = f =  500 Hz Speed of…

Q: A train makes a stop at a train station. You decide to get out of the train to get some snacks from…

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Q: A hammer taps on the end of a 4.00 m long metal bar at room temperature. A microphone at the other…

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Q: A trumpet player on a moving railroad flatcar moves toward a second trumpet player standing…

A: From the doppler effect, the expression for the frequency heard by the stationary observer from a…

Q: A trumpet player on a moving railroad flatcar moves toward a second trumpet player standing…

A: The received frequency will be: f'=f+nf'=610 Hz +6 Hzf'= 616 Hz

Q: At rest, a car's horn sounds the note A (440 Hz). The horn is sounded while the car is moving down…

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Q: From a vantage point very close to the track at a stock car race, you hear the sound emitted by a…

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Q: The Doppler effect is a change in the observed frequency of a wave (such as a sound wave or light…

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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: An ambulance with a siren emitting a whine at 1700 Hz overtakes and passes a cyclist pedaling a bike…

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Q: The ambulance siren emits a sound with a frequency of 450 Hz. What is the wavelength of the sound?…

A: frequency of siren when stationery, fs= 450Hz Speed of sound in air = 340 m/s Vehicle speed ( moving…

Q: You are driving down the road at 15.13 m/s when an ambulance passes you with its siren blaring. The…

A: According to the doppler effect , the frequency will be greater or lower than the actual produced…

Q: A fire engine is moving to the right at a speed of 72 km / h while sounding the siren with a…

A: Speed of fire engine (vsource) = 72 km/hroriginal frequency (f) = 1000 HzObserved frequency (fo) =…

Q: A railroad train is travelling at 30.0 m/s in still air. The frequency of the note emitted by the…

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Q: A whistle you use to call your hunting dog has a frequency of 21 kHz, but your dog is ignoring it.…

A: Using the expression for Doppler effect, f=f0v-v0v

Q: You are driving west on a highway at 2o m/sec. A police car is traveling toward you moving east. The…

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Q: A trumpet player on a moving railroad flatcar moves toward a second trumpet player standing…

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Q: An ultrasound unit is being used to measure a patient’s heartbeat by combining the emitted 2.0 MHz…

A: The frequency shift of waves reflected from a moving object is, ∆f=±2fsvov ∆f: Shift in frequency on…

Q: A car driving by you honks to say hello. The frequency of the honk measured by the driver in the car…

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Q: red train is stationary and a green train is moving forward away from the red train at a speed of 28…

A: Given,speed of the green train moving away from stationoary red train, v = 28 msspeed of the…

Q: An ambulance with a siren emitting a whine at 1640 Hz overtakes and passes a cyclist pedaling a bike…

A: Given  Frequency of source f0 =   1640 Hz  Apparent frequency f = 1629 Hz  Speed of sound = 343 m/s…

Q: Ann was sitting on a bench near the highway, then suddenly she heard a siren coming with a frequency…

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Q: Dolphins use echolocation (or sonar) by emitting high frequency “clicks” to locate objects in the…

A: (a) The sound must travel twice the distance in order to be heard by tuna. Therefore, the amount of…

Q: Bats find their prey (insects) by emitting high-frequency sounds and listening for the time it takes…

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Q: A red train is stationary and a green train is moving forward away from the red train at a speed of…

A: In this question we are given that a red train is stationary and a green train is moving forward…

Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.