If you threw the speaker with a speed of 13 m/s on a 28.5 °C day, what frequency does your stationary friend hear?  fobsfobs =    Hz      Part (b)  As you stand there, your friend puts the speaker in their dune buggy and drives away at a speed of 21 m/s as the song keeps playing. What frequency do you hear?  fobsfobs =    Hz  Part (c)  Instead of a fun day at the shore, let's reenact this scenario

Q: A bat emits a sound with a frequency of 153 kHz in a cave where the temperature is 28°C. Assume that…

A:

Q: A sound wave with intensity 2 x 10 -3 W/m2 is perceived to be modestly loud. Your eardrum is 6 mm in…

A: Intensity of sound (I) = 0.002 Wm2Diameter of eardrum (d) = 6 mm

Q: Two speakers (A and B) lie on the y-axis, 4.0m apart. They emit exactly the same 280 Hz tone in…

A: speed of the sound        v = 340 m/s Ferquncy (f) = 280 Hz

Q: The speed of sound in air is 331 m/s at atmospheric pressure and 0 Celsius. Suppose you put a…

A:

Q: sound with a frequency of 144 kHz in a cave where the temperature is 28°C. Assume that air behaves…

A: GivenA bat emits a sound with a frequency,f=144 kHz in a cave where the temperature, T= 28°C.Speed…

Q: A loudspeaker emits sound waves isotropically (uniformly in all directions). The average acoustic…

A: Given that The average acoustic power delivered by the loudspeaker is Ps_av=5.00 W and distance…

Q: High‑intensity focused ultrasound (HIFU) is one treatment for certain types of cancer. During the…

A:

Q: A loudspeaker has a frequency of 1000Hz to 2000Hz. An open open pipe is near the loudspeaker. The…

A: Given f=1000-2000 Hz L=45.7cm v=344 m/s

Q: An toddler, secured safely in his carseat, is crying loudly while the window is down. The toddler…

A: Let us takec=speed of sound =343 m/swe know thatv=c∆λλv=343630-564630v=343×66630v=35.933 m/ssound is…

Q: Two submarines A and B are approaching each other along a straight line as shown below. The speed of…

A:

Q: Image the blood's speed? [No That i

A: The reflected wave dropper shift as,

Q: Problem 4: An audio engineer takes decibel readings at distances of rl m and r 21 m from a concert…

A: Given: Distances, r1=11 mr2=21 m And,  β=101 dB To find: a) Intensity of sound b) Power, c)…

Q: Problem 10. An alien civilization occupies a planet in a distant solar system. The planet is…

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Q: A physics professor demonstrates the Doppler effect by tying a 580 HzHz sound generator to a…

A: The formula for Doppler Effect on the frequency, in case of stationary observer, can be written…

Q: Suppose you want to demonstrate the Doppler effect for deep-water waves, using a 6.43 Hz source…

A: Doppler's Effect: It is a phenomenon in which the frequency observed by the observer changes due to…

Q: Increased shipping represents a global threat to marine life. A phenomenon known as the bow…

A:

Q: The figure below shows wave fronts of sound waves from the siren of a police car. Two people on both…

A:

Q: An ambulance has a siren emits a sound which is sinusoidal with frequency fs = 350Hz. Assuming the…

A: Given data: Frequency of the sound wave emitted by the siren, fs=350 Hz Speed of sound in air,…

Q: A whistle you use to call your hunting dog has a frequency of 42 kHz, but your dog is ignoring it.…

A: Given:  frequency,  f = 42 Hz  Apparent frequency, f' = 40 Hz

Q: Alysson joins a race. She is running at a constant pace of 2m/s. Eve, another runner who enjoys…

A: Sound waves are longitudinal waves which imply that these waves travel in a direction parallel to…

Q: ng a highway with heavy traffic. A stationary car with an audio irns on its siren of 700-Hz…

A:

Q: You are picking up your partner from a mall.  Though you can see your partner, your partner cannot…

A:

Q: 1. The equation of a certain wave on a string is given by y(x,t) = 0.1 sin{2r(x- 10t)} %3D with x…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: High‑intensity focused ultrasound (HIFU) is one treatment for certain types of cancer. During the…

A: We have to use some basic formula.

Q: An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic sound that travels 1530…

A:

Q: Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the…

A: Given:The diameter of the ear is .The intensity of the sound is .

Q: A bat emits a sound whose frequency is 83.2 kHz83.2 kHz. The speed of sound in air at 20.0o C is 343…

A:

Q: You've entered the Great Space Race. Your engines are hearty enough to keep you in second place.…

A:

Q: The speed of sound at 0°C in open air is 331.3m/sec. At what temperature would the wavelength of a…

A: frequency = f = 440 Hz wavelength = λ = 0.82 m

Q: We stand in front of a wall. Between us and the wall, at the height of our ears, there is a…

A: Given data, Actual frequency of the whistle = 600 Hz Beat frequency = 3 Hz

Q: There was an accident and NASA engineers are trying to sort out where two of their Mars Rovers,…

A: Recall VαTSpeed of sound is proportional to square root of temperature.

Q: typical eardrum is 8.9mm in diameter. You have a speaker that can produce 280W of sound energy. The…

A:

Q: A violin string with a length of 50 cm and a linear density of 0.650 grams/m  placed next to a…

A: Given:  Length of string L=50, Linear density 0.65 g/m Violin string is set at 880-1420Hz To find:…

Q: A police car siren emits a frequency of 3700HZ while driving down the road at a speed of 30.0ms.…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The speed of sound in air is 331 m/s at atmospheric pressure and 0 Celsius.  Suppose you put a…

A: Given Speed of sound in air  (V0) = 331 m/s                                at 0° C   We know speed…

Q: A spectator at a parade receives an 888 Hz tone from an oncoming trumpeter who is playing an 881 Hz…

A:

Q: Susan stands directly in front of two speakers that are in line with each other. The farther speaker…

A: Formula of destructive interference is given as follows; △d=(m+12)λfinal…

Q: A sonar system fixed in a submarine operates at a frequency 50.0 kHz .An enemy submarine moves…

A: In the given question the source is at rest and the observer is moving towards it. There will be a…

Q: A 38.0-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The density of air at…

A: The frequency of the sound wave is f=38.0 Hz The sound intensity level is L=60 dB The density of air…

Q: Microwaves travel at the speed of light, 3.00 ✕ 108 m/s. When the frequency of microwaves is 7.00 ✕…

A: Given C=3.00 ✕ 108 m/s f= 7.00 ✕ 109 Hz

Q: A signal no. 1 storm is up in your area, and the weather sirens are turned on to give warning to the…

A:

Q: 2. A Martin guitar has an 80 cm wire. When this wire vibrates unfingered then it produces sound with…

A: We are given length of wire. We are also given frequency when there is no fingering. We are then…

Q: john was driving , moving at 17.0 m/s, approaching the open window of Khuslen who was experimenting…

A: Observed frequency f' = (v+ vo)*f /(v-vs)  When the observer/source is closing the distance between…

Q: You are hiking along a trail in a wide, dry canyon where the outdoor temperature is T=28.5 degrees…

A:

Q: Problem #5. Engr. Pagsanjan, a physicist, wants to study the frequency to be observed in a bat cave…

A: frequency emitted by bat (f) = 29614 Hz temperature inside the cave (T) = 14oC

Q: It's Christmas time and you blast your Christmas music with the windows down in your car. Your…

A: The Doppler formula is, fo=v+v0v+vsfsobserver spped vo=0fo=v+0v+vsfs=vv+vsfs

Interference of sound

Seiche

A seiche is an oscillating standing wave in a body of water. The term seiche pronounced saysh) can be understood by the sloshing of water back and forth in a swimming pool. The same phenomenon happens on a much larger scale in vast bodies of water including bays and lakes. A seizure can happen in any enclosed or semi-enclosed body of water.