A person riding in a car is blowing an air horn at a frequency of 302 Hz. You are sitting on a bench at the bus stop, minding your own business. The car is moving quickly at 85 mph (38 m/s). What is the frequency that you hear as the car drives away? It is a hot day so the speed of sound is 350 m/s.  Hint: Is this car approaching or receding?

Q: 14. An open tube produces the third harmonics sound of 600 Hz. Which of the following statement(s)…

A: Given data:  Number of harmonic = 3 Frequency f=600Hz

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: 1.) Determine the velocity of sound in mercury, ehich has a bulk modulus of 2.8x10¹⁰ and a density…

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Q: 16. A string of length 1.8 m is under tension of 100 N. What is the mass of the string if its second…

A: Hi,  As per our policy we are allowed to write only 3 sub parts So, kindly post other parts in…

Q: How do we identify a high-pitched sound?A. High frequencies cause only weak vibrations of the…

A: Given:How do we identify a high-pitched soundAnswer:Option(c): The whole basilar membrane vibrates…

Q: 41.A car approaches a stationary police car at 36 m/s. The frequency of the siren (relative to the…

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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: Given :     velocity of eagle, ve = 28 m/s    Frequency of the sound, f = 370 Hz    velocity of…

Q: A person riding in car is blowing an air horn at a frequency of 302 Hz. You are sitting on a bench…

A: According to Doppler effect,  When observer is fixed and source is moving away from observer, then…

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: The power output of a trombone is 0.30 W. At what distance is the sound intensity of the trombone…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: What frequency does a stationary observer hear when a sound source oscillating at 515 Hz and moving…

A: Given data: Velocity of sound (v) = 340 m/s Velocity of source (u) = 10 m/s Observer is stationary…

Q: A truck moving at 36 m/s passes a police car moving at 45 m/s in the opposite direction. If the…

A: speed of truck (vo) = 36 msSpeed of police car (vs) = 45 msfrequency of siren (f) = 500 Hz speed of…

Q: D. E. 9 18. The frequency of a fire truck's siren is 1600 Hz. What frequeney do you observe if you…

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Q: 4. An ambulance with a siren emitting a whine at 1600 Hz overtakes and passes a cyclist pedaling a…

A: Given data: The siren emitting the whine, f=1600 Hz The cyclist pedaling the bike at the speed, v0…

Q: An eagle flying at 15.5 m/s towards a stationary prey screeches at 3250 Hz. (a) What frequency, in…

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Q: A person at rest hears a trumpet note of frequency fi from a source moving toward him with a…

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Q: What is the time period of a sound wave with velocity 625 m / s in air and a wavelength of 2 m?…

A: Given data: Velocity v =625 m Wavelength λ=2 m

Q: 12. A loudspeaker has a round opening with a radius of 9.50 cm. The electrical power needed to…

A: Radius of opening of loudspeaker r=9.5 cm=0.095 m, sound Intensity at the opening I=17.5 W/m2 and…

Q: 13. What is the frequency heard by an observer from airplane approaching at 163m/s,  if the engine…

A: The source is airplane. Given,  Speed of airplane (Source) , vs = 163 m/s (approaching the observer)…

Q: 5. The fundamental frequency of a vibrating system is 525 Hz. If the system is a cylindrical pipe…

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Q: B) Amplification of sound is heard when the water level in a 90 cm long tube is 12.1 cm below the…

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Q: Question 4 Listen A particular sound has an intensity of 12 W/m2 at a certain distance. If this…

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Q: sound has an intensity

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Q: 27) approaching you from behind and you perceive the frequency as 1370 Hz. You are relieved that he…

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Q: A truck moving at 36 m/s passes a police car moving at 45 m/s in the opposite direction. If the…

A: The speed of the truck is 36 m/s, the speed of the police car is 45 m/s, the frequency of the siren…

Q: •9 If the form of a sound wave traveling through air is s (x, t) = (6.0 nm) cos (ka + (3000 rad /s)t…

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Q: If you hear a musical sound from an instrument that is vibrating the air at 200.0 Hz and traveling…

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Q: 13. What is the intensity of a sound wave of amplitude 0.002 dyne/cm2, measured in dB? ( some facts:…

A: The amplitude of a sound wave is, P=0.002 dyne/cm2

Q: ________ A smaller version of the piccolo (called the piccolissimo) has one closed end and one open…

A: Length of the rod is L = 0.15 m Speed of the sound is v = 345 m/s

Q: While standing at a crosswalk, you hear a frequency of 560 Hz from an approaching police car. After…

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Q: Two identical guitar strings are prepared such that they have the same length (0.63 m) and are under…

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Q: Bats emit ultrasonic waves with a frequency as high as 2.000 ×105 Hz.  What is the wavelength of…

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Q: POLICE On Highway 900, a police vehicle with its siren emitting frequency f = 1,785 Hz is chasing a…

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Q: For the scenario in Question 9 with the speed of eagle 11.61 m/s, what frequency does the blackbird…

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Q: An open organ pipe emits C′C′ (524 HzHz ) when the temperature is 14 ∘C∘C. The speed of sound in air…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: car traveling south at 36 m/s sounds a 456 Hz horn. What frequency is heard by the truck driver if…

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Q: 1. A standing wave is created in a musical instrument as shown below. The frequency of the sound is…

A: In this case let the length of the instrument be L In closed pipe We know that 4L = nλ Here 7×(λ/4)=…

Q: You're singing in the shower and produce a beautiful middle C (frequency of 262 Hz). The speed of…

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Q: A hawk flying at 36 m/s emits a cry whose frequency is 380 Hz. A wren is moving in the same…

A: a) The observed frequency as hawk approaches wren is given by,

Q: You are driving along a highway at 35 m/s when you hear the siren of a police car approaching you…

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Q: 1) The sinusoidal wave below is described by its    2) Sound bend downward during daytime due to…

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Q: Two eagles fly directly toward one another, the first at 15.0 m/s and the second at 21.0 m/s. Both…

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Q: The overall length of a piccolo is 27.0 cm. The resonating air column is open at both ends. (a) Find…

A: we know that relationship between frequency  and wavelength v= fλ       v= velocity of air 343 m/s…

Q: 5. A pipe that is open on one end produces a harmonic frequency of 441 Hz. The next harmonic happens…

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Q: 10. What is the frequency heard by a stationary observer when a train approaches with a speed of…

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Q: A fire truck is moving at 45 m/s, and a car in front of the truck is moving in the same direction at…

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Q: Problem 9: A guitar with strings of length L = 0.64 m has new strings put on it. The low E string…

A: Wavelength of wave in string λ =2L frequency is given as f = Tμλ = 12LTμ T = 2fL2μ