A pebble is dropped into a deep well and is heard to hit the ground 3.75 seconds after being dropped. Determine the depth of the well.

Q: Some bat species have auditory systems that work best over a narrow range of frequencies. To account…

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Q: The intensity of a sound wave coming from a spherical source 5 meters away is 0.1 ", m2 What is the…

A: Given data: Distance of the spherical source (r) = 5 m Intensity of the sound (I) = 0.1 W/m2 Need to…

Q: A source of sound has a total emitted power of 300 W. Determine the intensity a distance of 10 m…

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Q: What is the time period of a sound wave with velocity 250 m/s in air and a wavelength of 0.50 m?…

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Q: What microscopic properties of the air make the speed of sound dependent on its temperature?…

A: The answer is given below

Q: Calculate the maximum displacement ofthe sound wave in air whose frequency is 3.4 kHz and having the…

A: The expression for the maximum displacement is,

Q: A school of dolphins is searching for a meal and uses echolocation to satiate themselves. They find…

A:

Q: You are on an island where a huge explosion at a distance of 500 miles away can be heard, How long…

A: The speed of sound in air at 20 degree Celsius is 343 m/s. The time taken by the huge explosion…

Q: Transverse waves are sent along a 5.40 m long string with a speed of 93.00 m/s. The string is under…

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Q: An explosion occurs in Baguio city during a cold day at 8 °C. How long after the explosion does a…

A: The velocity of sound wave is given by, v = d/t  Where, v = velocity of sound d = distance travelled…

Q: A certain sound source is increased in sound level by 36 dB. By what multiple is (a) its intensity…

A: Given that:- Sound level increased by 36dB

Q: During a thunderstorm, 5.0 s elapses between observing a lightning flash and hearing the resulting…

A: The speed of light (u) = 3 ×108 msThe speed of sound in air (v) = 344 msLet the distance of the…

Q: 6. What is the speed of sound in dry air? a) 331.2 m/s b) 300 m/s c) 250 m/s d) 230 m/s

A: Speed of sound in air V = (γRT/M)1/2

Q: A train travelling at 30 m/s sounds its horn (frequency 780 Hz) as it approaches a tunnel in a…

A:

Q: 10. Determine the speed of sound in concrete material with Young's modulus of 3 x 10^10 N/m2 and a…

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Q: By what factor must the amplitude of a sound wave be decreased in order to decrease the intensity by…

A: Intensity of the sound wave is directly proportional to the square of the amplitude of sound wave

Q: 11 Sound waves whose intensities about 1 W/m^2 cause damage to the ear. How many decibels is this…

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Q: Hearing the siren of an approaching fire truck, you pull over to the side of the road and stop. As…

A: Given data: Approaching frequency f’=460 Hz. Receding frequency f=410 Hz. Distance d=5.00 km.

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

A: In this question we have to find the speed of the car. Please give positive feedback if the answer…

Q: A plane is flying at Mach 1.2, and an observer on the ground hears the sonic boom 15.00 seconds…

A: Time taken by the sonic boom from plane to reach the observer (t)=15 s Speed of sound (v)=343 m/s

Q: A group of hikers hears an echo 1.60 s after shouting. How far away is the mountain that reflected…

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Q: Apolice car emits sound with a frequency of 900.0 Hz is moving at 400 m/s towards an observer moving…

A: Given: The frequency of the sound is 900 Hz. The speed of the police car is 40.0 m/s. The speed of…

Q: The observer sees a plane vertically above him and hears it after 1.5 seconds, while the plane…

A: Here given that the observer hears the sound of plane after 1.5 sec while it enclose an angle 35°.…

Q: velocity of a sound wave

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Q: An ambulance is traveling East at 20m/s. The siren emits a fixed frequency of 220Hz. Each of the…

A: The ambulance is traveling at 20 m/s and emits sound at a frequency of 220Hz.

Q: A certain sound source is increased in sound level by 24 dB. By what multiple is (a) its intensity…

A: Here we have to compare both intensity and pressure

Q: 17 A tennis player hits a ball hard and 0.40 s later hears the echo from a wall. The speed of sound…

A: Given The time by which echo reaches the player is t=0.40 s. The speed of sound in the air is v=330…

Q: During a thunderstorm, 5.9 s elapses between observing a lightning flash and hearing the resulting…

A: Given information: The time take to hear the sound (t) = 5.9 s The spped of sound (V) = 344 m/s

Q: Porpoises emit sound waves that they use for navigation. If the wavelength of the sound wave emitted…

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Q: A school of dolphins is searching for a meal and uses echolocation to satiate themselves. They find…

A:

Q: If the amplitude of a sound wave is tripled, the intensity will O decrease by a factor of 9.…

A: The intensity of a sound wave depends on a number of factors: Frequency of sound- The intensity of…

Q: 60. •At room temperature the bulk modulus of glycerine is about 4.35 x 10° N/m² and the density of…

A: Given: The bulk modulus of the glycerine is 4.35x109 N/m2 The density of the glycerine is 1260…

Q: The speed of sound in vacuum at 100-degree C is: O a. 1.17 m/s O b. 200.275 m/s O c. 386.87 m/s O d.…

A: The speed of sound in vacuum needs to be told.

Q: 17 What is the frequency heard by a person driving at 15 m/s toward a blowing factory whistle (800.…

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Q: 8.) The average speed of sound in water is approximately 1,500 m/s. If the noise from a boat takes…

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Q: Wyle E. Coyote hears a constant “Beep! Beep!” from around the corner of a cliff. Thinking it might…

A: Given data: The speed of the truck is, vt = 25 m/s The speed of the Coyote is, vc = 100 m/s The mass…

Q: A stone dropped from the top of a tower of height 300 m splashes into the water of a pond near the…

A: Calculating the time taken by the stone to reach the bottom of the tower:

Q: A small source emits sound waves with a power output of 80.0 W. a) b) 2. Find the intensity 3.00 m…

A: Given: The output power of the source is 80 W. Part (a): Here, the distance of the point from the…

Q: 1 A train approaching a hill at a speed of 40 km/hr sound a whistle of frequency 580HZ when it is at…

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Q: A rocket in a fireworks display explored high in the air. The sound spreads out uniformly in all…

A: Given : I = 2.0 × 10-6 W m-2 r = 120 m I' = 0.80 × 10-6 W m-2

Q: What frequency of sound is observed if the 449 Hz source is traveling away from a stationary…

A: Doppler's Effect : It states the change in frequency of a wave in relation to an observer who is…

Q: During a thunderstorm, 4.6 s elapses between observing a lightning flash and hearing the resulting…

A: Introduction: Normally in the rainy season thunderstorm and lightning observed. lightning and…

Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.