When a single airplane engine turns on, it rotates at 2798 rpm. Assume that the sound wave it generates matches with this rotational motion, (a) what frequency is this sound wave?

Q: A piano string vibrates 4186 Hz. What is the wavelength of the vibration if the speed of the sound…

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Q: A source of sound is moving on a circular path with an angular speed of 4 rad/s as shown. The…

A: Given: Initial frequency (f0) = 256 Hz angular speed of the source (ws) = 4 rad/s radius of the…

Q: The speed of sound in a solid medium is 15 times greater than that in air. If the frequency of a…

A: The speed of sound in the solid medium can be calculated as,

Q: What frequency is received by a mouse just before being dispatched by a hawk flying at it at 25.0…

A:

Q: The hottest recorded temperature in the history of the United States is 134 °F, which is 57 °C. What…

A:

Q: The density of a sample of water is 998.00 kg/m. and the bulk modulus is 2.15 GPa. What is the speed…

A: Given  Density of a sample of water is ρ=998.0 kg/m3 Bulk modulus is B=2.15×109Pa

Q: Two loudspeakers are mounted on a merry go round whose radius is 9.01 m. When stationary the…

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Q: A whistle of frequency 540 Hz moves in a circle of radius 60.0 cm at an angular speed of 15.0…

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Q: A seated musician plays a G4 note at 392 Hz392 Hz . How much time Δ?Δt does it take for 121121 air…

A:

Q: A piano tuner creates an 880.0 Hz tone. When he plucks a piano string, the two waves create a beat…

A: According to question we need to find lowest value of second frequency?

Q: The disc of a siren containing 60holes rotates at a constant speed of 360rpm. The emitted sound is…

A: Given data: Number of holes in a disc of siren is, n=60 holes. Number of rotations is, N=360 rpm.

Q: A woman is standing in the ocean, and she notices that after a wave crest passes by, five more…

A: time taken by 5 wavelengths to pass through a certain point = 33.8 sec thus, 5T = 33.8T = 6.76…

Q: If a wave is traveling with an angular frequency of 3.6 rad/s then what is period of that wave?

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Q: After Dragonfly lands and is unfolded from its carrier, it flies away at 3.368 m/s. We know that the…

A: Whenever there is a relative motion between an observer and a distant sounding source, the frequency…

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

A:

Q: A bat emits a sound at a frequency of 30.0 kHz as it approaches a wall. The bat detects beats such…

A: The given data are: f1=30 kHz=30000 Hzfb=900 Hzc=340 m/s Here, f1 is the frequency of the sound…

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: A woman is standing in the ocean, and she notices that after a wave crest passes by, five more…

A:

Q: What frequency is received by a stationary mouse just before being dispatched by a hawk flying at it…

A:

Q: A car moving at 20 m/s with its horn blowing (S = 1200 Hz) is chasing another car going at 15 m/s.…

A:

Q: A seated musician plays a G4 note at 392 Hz392 Hz . How much time Δ?Δ⁢t does it take for 121121 air…

A: Given, The frequency at G4 note is 392Hz Frequency, f=392 Hz= 392 cycles/sec Number of air pressure…

Q: There is an explosiononthe surface of a lake. There is a boat 1.50 miles awayfrom the explosion. One…

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Q: An elf is moving behind a Orc bard that is singing very loudly and triumphantly. If the Orc is…

A: frequency of sound emitted by orc (f) = 377 Hz Speed of orc = 9.3 msSpeed of sound = 359 Hzfrequency…

Q: What is the speed of sound in air that has a temperature of 311.9 K?

A: The temperature of the air is given as T=311.9 K

Q: Suppose you shake a slinky continuously in an up and down fashion such that a transverse waves…

A: Transverse Waves are the type of waves in which particles of medium oscillates perpendicular to the…

Q: A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the…

A: Given :- n=500 hz, d=450m Introduction:- The time interval between two successive compressions is…

Q: Two waves of the same frequency have amplitudes 1.00 and 2.00. They interfere at a point where their…

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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: A bicycist is traveling at at rest. if the dniver blouws her horn at a frequency of l627 Hz, what…

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Q: A dişk has 40 holes around its circumference and is rotating at 1200 rpm. Detemine the frequency and…

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Q: A “showy” custom-built car has two brass horns that are supposed to produce the same frequency but…

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Q: Calculate the length of a closed pipe resonator whose first harmonic is 250Hz. Assume that velocity…

A: The frequency of first harmonic is given by  f = v4L where, v is the velocity of sound, L is the…

Q: A man fires a gun and hears an echo 2.4 seconds after. How far is the reflecting surface if air…

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Q: A rocket on the ground vibrates at an audible frequency of 486 Hz. What is the frequency heard by an…

A:

Q: Two timpani (tunable drums) are played at the same time. One is correctly turned so that when it is…

A: Given that:- c=343 m/sλ=2.20 mf=?

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

A:

Q: Suppose you shake a slinky continuously in an up and down fashion such that a transverse waves…

A: Given:- 15 peaks have been made during a time of 2.03 sec   Find:- The frequency of the wave

Q: A piano tuner uses a 512-Hz tuning fork to tune a piano. He strikes the fork and hits a key on the…

A: Beats are formed when two or more sound frequencies interfere constructively and destructively. The…

Q: Two waves of the same frequency have amplitudes 1.00 and 2.00. They interfere at a point where their…

A: Amplitude, a1 = 1.00 Amplitude, a2 = 2.00 Phase difference, Φ = 60° Resultant amplitude, A = ?

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

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Q: Two identical waves travel in the same direction, each with a wavelengthA =1m and speed v 20 m/s.…

A: The relation between the wavelength, frequency and the wave velocity is  wave velocity =wavelength x…

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

A:

Q: A physics professor demonstrates the Doppler effect by tying a 450 HzHz sound generator to a…

A: Given:the initial frequency is f1=450 HzThe length of rope is L=1 mAngular speed is, N = 100 rpm

Q: A violin string vibrates at 293 {\rm Hz} when unfingered. At what frequency will it vibrate if it is…

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Q: A man strikes one end of a thin rod with a hammer.The speed of sound in the rod is 15 times the…

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Q: What is the bulk modulus of oxygen if 32.0 g of oxygen occupies 22.4 L and the speed of sound in the…

A:

Q: Two waves of same pitch have amplitude in the ratio 1:3. What will be the ratio of their (i)…

A: The loudness is proportional to the amplitude square,

Electromagnetic Waves

Electromagnetic waves are waves that consist of magnetic field and electric field components perpendicular to each other. These field components are also perpendicular to the direction of propagation of the wave.