The temperature is 220 C and a car is honking its horn at a frequency of 450 Hz. You perceive a frequency of 500 Hz. Is the car moving towards you or away? How fast is the car traveling relative to you?

Q: A silent train moving at a constant speed towards a stationary observer. On the train, a flute…

A: Working Formula: If f be the actual frequency of the source of the sound then the apparent frequency…

Q: A spaceship is approaching a space station at a speed of 2.25 ✕ 105 m/s. The space station has a…

A:

Q: Two trains, each moving with a velocity of 30m/s, cross each other. One of the trains gives a…

A: D

Q: If a wave has a period of 1.735 × 10−15 s and a wavelength of 520.0 nm, how fast is it travelling?

A: Given:T = 1.735 × 10−15 s λ = 520.0 nm = 520.0 x 10-9 m Solution:We know, speed of wave is given…

Q: we are moving away from a stationary cell phone tower at 25 m/s. If the frequency emitted by the…

A:

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: You are standing still at a railroad crossing when the driver of the train sounds its whistle. You…

A: Given: A train whistles

Q: speed of the ambulance is 31 m/s. Then find the frequency the observer hears as the ambulance is…

A: The frequency of an approaching sound’s source observed by a stationary observer can be represented…

Q: A train S1, moving with a uniform velocity of 108 km/h, approaches another train S2 standing on a…

A: The velocity of the train S1 is The velocity of the observer, The velocity of train S2, The…

Q: Two aircraft engines are running at slightly different rates. One produces a sound of 826.0 Hz. The…

A: Given data:  The frequencies of two aircraft engines  f1 = 826.0 Hz f2 = 836.0 Hz Required:  The…

Q: A spaceship is approaching a space station at a speed of 3.30 ✕ 105 m/s. The space station has a…

A: in this problem, the given data-   the speed of spaceship is v=3.30×105m/s frequency of light f=…

Q: An ambulance traveling at 26 m/s goes down a street with its siren at a constant frequency of 10,000…

A:

Q: A latecomer to a concert hurries down the aisle toward his seat so fast that the middle C note of…

A: Given Source frequency fs = 286 Hz Change in frequency Δf = 1 Hz

Q: What frequency is received by the observer "B" moving at 23 km/h away from a firetruck at rest which…

A:

Q: A group of spectators sit in the bleachers and watch a racecar approach and then pass in front of…

A: Let the frequency emitted by the car is f. let the frequency detected by spectators is f1. Let the…

Q: The Cubs are putting on a fireworks show at Wrigley Field after the game on a brisk autumn evening…

A: Given:   evening temperature  = 12 0C(54 0F) Time taken by spectator to hear = 0.600 s speed of…

Q: Ex. 92: A train blows a whistle of frequency 640 Hz in air. Find the difference in apparent…

A: To find-nA-nA'=?Given-Vs=72 km/hr=72×518=20 m/sV=340 m/sn=640 Hz

Q: The driver of a car, who is approaching a siren at a speed of 90 km/h hears a sound with frequency…

A: Given Data : The speed of the car initially is given as vi=90 Kmh The frequency of the sound heard…

Q: Electromagnetic waves, which include light, consist of vibrations of electric and magnetic fields,…

A:

Q: A race car is travelling at a speed of 262 km/hr. The frequency of the engines roar is 950 Hz. The…

A:

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

A:

Q: An ambulance passes by a stationary observer releasing its siren at a frequency of 479Hz. The…

A: Given Data : The frequency of the siren is given as fs = 479 Hz. The difference between the…

Q: Ex./90 A car moving at 40 km/hr passes a factory as a siren of frequency 500 Hz is sounded. What…

A: Given-n=500 Hzv0=40 km/hv0=40×518=11.11 m/sv=340 m/s vs=0 (stationary source)

Q: A plane flies horizontally at Mach 1.2, and an observer on the ground hears the sonic boom 15…

A:

Q: a) An ambulance moving with a speed of 26.45m/s. produces a siren of frequency 408Hz approaches an…

A: given: An ambulance moving with a speed ofvs = 26.45 m/s. produces a siren of frequencyf = 408 Hz…

Q: A 520 Hz whistle is moved toward a listener at a speed of 20 m/s. At the same time, the listener…

A:

Q: You are traveling at 38m/s toward oncoming car traveling at 28m/s toward you. Just before it reaches…

A:

Q: This is possibly a different atmosphere from ours.  In any case, the speed of sound is…

A: When lightning flashes, we see its light first while its sound is heard after some time. This…

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

A:

Q: A 1.0 C increase in air temperature causes the speed of sound to increase by 60 m/s. Truth or False?

A:

Q: JI am onstage at the Met. Not singing, of course: I am a supernumerary, a silent extra. I hear Lise…

A: Given, Initial frequency, v=10000 Hz Final frequency, v'=10100 Hz As final frequency is greater than…

Q: Bob is standing at a distance of 100 m from the center of circular train track with radius R = 50 m,…

A:

Q: An air controller on an aircraft carrier sees a jet fly over 81 meters above her and she hears the…

A: Speed of the jet = (140/81)*344 m/s

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

A: Frequency of light is f = 5.640 x 1014 Hz Speed of the person is v = 2627 km/s = 2627000 m/s

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

A:

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

A:

Q: An ambulance with a siren emitting a whine at 1750 Hz overtakes and passes a cyclist pedaling a bike…

A: Given Source frequency fsource = 1750 Hz Observed frequency fobs = 1739 Observer velocity vobs    =…

Q: Suppose that you are watching a train go by (as in, move away from you). The train horn’s natural…

A:

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

Q: Pr5. Two identical loudspeakers are located at points (-10,0, 0) and (0,0, 10) of our coor- dinate…

A: As we know, oscillator is a circuit which produces periodically oscillating electronic signals which…

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.