If you blow across the top of an empty soft-drink bottle, a pulse of sound travels down through the air in the bottle. At the moment the pulse reaches the bottom of the bottle, what is the correct description of the displacement of elements of air from their equilibrium positions and the pressure of the air at this point? (a) The displacement and pressure are both at a maximum. (b) The displacement and pressure are both at a minimum. (c) The displacement is zero, and the pressure is a maximum. (d) The displacement is zero, and the pressure is a minimum.

Q: The air on a very warm summer day is 38C. You blow across the top of a tube with a length of 35.0cm…

A: Length of tube L1= 0.3 m Length of other tube alto= 0.174m

Q: pipe A, open at both ends and 1.20 m long, oscillates at its third harmonic. the tube is filled with…

A: GIVEN: length of pipe A = 1.2m  speed of sound in air = 343m/s  nA = 3 for pipe A  which is open at…

Q: The low-frequency speaker of a stereo set has a surface area of 0.06 m² and produces 1.13 W of…

A:

Q: A soprano and a bass are singing a duet. While the soprano sings an A-sharp at 932 Hz, the bass…

A: Given that- A soprano and a bass are singing a duet f=932hz the bass sings an A-sharp but three…

Q: Two loudspeakers directly face each other 30 m apart, with the left speaker positioned at x = 0 m.…

A: Details given: Distance between the speakers = 30m Left speaker placed at x=0m Pressure equation of…

Q: In Transverse mechanical waves, crests are the regions at maximum displacement, below the mean…

A: Refer to the below figure : Crests are the regions of highest point in a wave whereas troughs are…

Q: A member of an aircraft maintenance crew wears protective earplugs that reduce the sound intensity…

A: The sound intensity level experienced by the crew member,

Q: You are trying to overhear a juicy conversation, but from your distance of 15.0 m, it sounds like…

A: Solution: Given that distance 1; R1 = 15 m  whisper 1; dB1 = 2 dB sound levelI is the intensity of…

Q: When you speak after breathing helium, in which the speed of sound is much greater than in air, your…

A: When you speak after breathing helium, the voice sounds quite different.

Q: A shower stall has dimensions 86.0 cm × 86.0 cm × 210 cm. Assume the stall acts as a pipe closed at…

A:

Q: Calculate the length of a pipe that has a fundamental frequency of 906 Hz. (Take the speed of sound…

A:

Q: A well with vertical sides and water at the bottom resonates at 6.30 Hz and at no lower frequency.…

A: Given:Frequency,f=6.30 Hzdensity,ρ=1.10 kg/m3Bulk modulus ,B=1.33×105 PaFind how far down in the…

Q: As a certain sound wave travels through the air, it produces pressure variations (above and below…

A: Write a given values of this question. ∆P=1.30sinπx-330πtρair=1.20kg/m3ρatm=1.013×105kg/m3

Q: at what distance from the factory (in km) is the intensity level of the whistle sound equal to 12…

A: Given, Factory whistle can be heard up to a distance, D=1.1Km=1100m Threshold of human hearing,…

Q: A tuning fork that vibrates at a frequency 680 Hz is placed over an 80 centimeter long cylinder that…

A:

Q: A flute may be thought of as a pipe open at both ends. When all the holes of a well-designed flute…

A:

Q: Hz sound wave traveling in the x direction in air was observed to have a differential pressure p(x,…

A: Given:- The frequency of the sound wave f=3kHz. a differential pressure p(x, t) = 10 N/m2 at x = 0…

Q: What happens to a sound source that is passing by at constant speed? A. The sound and pitch vary…

A: Sound source is passing at constant speed

Q: The faintest sound the human ear can detect at frequency 1kHz corresponds to an intensity of about…

A:

Q: Two loudspeakers, A and B, radiate sound uniformly in all directions in air (see Figure). The speed…

A: Given:  V=sound of speed in air=344m/s  PA=Acoustic power output at A=8.00×10-4w  PB=Acoustic…

Q: Yujin is playing on a violin string with a length 32 cm and linear density 1.5 g/cm, that resonates…

A: Given:For  an organ the pipe being closed at one end, we have:First overtone frequency, f1 =…

Q: During a typical workday (eight hours), the average sound intensity arriving at Larry's ear is 1.8 ×…

A:

Q: A firework charge is detonated many meters above the ground. At a distance of d1 = 500 m from the…

A:

Q: A physics professor demonstrates the Doppler effect by tying a 600 Hz sound generator to a…

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

Q: A sound wave having a frequency of 345 Hz travels through air at 20 °C. The decibel level at a…

A: Given: Frequency of sound waves = 345 Hz Decibel level at distance 16.3 m = 86.5 dB Density of air =…

Q: A pipe is 2.95 m long, determine the frequencies of the first three harmonics if the pipe is open at…

A:

Q: Select the image from the options provided showing the gas pressure for the third harmonic of a pipe…

A:

Q: The intensity of a sound wave at a fixed distance from a speaker vibrating at 1.00 kHz is 0.600…

A: Given: Frequency of the speaker: f0=1.00 kHz The intensity of the sound at the fixed distance:…

Q: A woman stands a distance d from a loud motor that emits sound uniformly in all directions. The…

A: Given data The initial intensity of sound is I1=3.9×10-3 W/m2 The final distance is d2=2.1d1 here d1…

Q: Suppose that the sound level of a conversation is initially at an angry 74 dB and then drops to a…

A: Given data: The initial sound level is, I1 =74 dB The final sound level is, I2= 54 dB The frequency…

Q: What is the ratio of the velocity of sound in helium gas to that in air at the same pressure and…

A: The velocity of sound  at STP, in air is about 346 m/s and in helium gas is about 973 m/s. Therefore…

Q: A pipe has a length of 0.891 m and is open at both ends. Take the speed of sound to be v = 343 m/s.…

A: A pipe (either open at both ends, or closed at one end) can create standing waves at higher…

Q: Two loudspeakers are emitting identical sound into air at 20°C. Point P is located as shown in the…

A: Given- speed of sound into air at 20oC , v = 343 m/s distance of speaker-1 , from point P, x1 = 5 m…

Q: A musical recorder acts as an open-end air column, with a vibrational antinode located at the hole…

A:

Q: A person standing 1.20 m from a portable speaker hears its sound at an intensity of 5.10 x 10-3…

A: a) The expression for find intensity level of sound is β=10logII0 Insert values in the above…

Q: When dealing with sound intensities and decibel levels, a convenient approximation (accurate to 2…

A: a). For an increase of sound intensity by a factor 2^n, the corresponding increase in the decibel…

Q: The intensity of the sound from a certain leaf blower is measured at  25 × 10−2 W/m2.  Find the…

A:

Q: Determine the velocity of sound in mercury, which has a bulk modulus of 2.8 × 10^10 and a density of…

A: In a fluid the velocity of sound v is given by v=BdwhereB is the bulk modulus of materiald is the…

Q: Calculate the length of a pipe that has a fundamental frequency of 943 Hz. (Take the speed of sound…

A: (given) Fundamental frequency = 943 Hz Speed of sound in air = 343 m/s (a) Fundamental frequency of…

Q: QUESTION 9 The intensity of a sound is amplified from 20 µW/m2 to 2 mW/m2. Calculate the…

A:

Q: Question No. 18 If the density in a region through which a sound wave is passing is maximum at an…

A:

Q: Consider a sound wave in air that has displacement amplitude 0.0200 mm. Calculate the pressure…

A: Given: The displacement amplitude of the sound wave is 0.0200 mm. Introduction: The pressure…

Q: You are trying to overhear a juicy conversation, but from your distance of 15.0 m, it sounds like…

A: The sound intensity level β (in decibels) of a sound having an intensity I in watts per meter…

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.