A siren on a tall pole radiates sound waves uniformly in all directions. At a distance of 15.0 m from the siren, the sound intensity is 0.250 W/m2. At what distance is the intensity 0.010 W/m2?

Q: The sound intensity of two alarms is detected at a particular point. The first alarm has an…

A: Given: The intensity of first alarm (I1) = 103.7 W/m2. Intensity of second alarm is 11 dB louder…

Q: A bat at rest sends out ultrasonic sound waves at 60.0 kHz and receives them returned from an object…

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Q: A loudspeaker has a circular opening with a radius of 0.1308 m. The electrical power needed to…

A: radius of circular opening = 0.1308 m Electrical power needed to operate the speaker = 37.4 W Sound…

Q: A jet engine emits sound uniformly in all directions, radiating an acoustic power of 2.19 x 10 W.…

A: The intensity of the sound at a distance is given by,I=PA......(1)where, I is the intensity of sound…

Q: By what factor k must the sound intensity be increased to increase the sound intensity level by 12.9…

A: Given Data, The increment in sound intensity level (∆β)=12.9 dB

Q: he ear canal is an open-closed tube for sound waves. A person has ear canal 3 cm long. Sound speed…

A: ear canal is open closed tube at open end there is antinode. at closed end there is node. distance…

Q: A loudspeaker has a circular opening with a radius of 0.08508 m. The electrical power needed to…

A: Radius of circular opening is Electrical power is Intensity of sound at the opening is Find:What…

Q: e 30 m away is 100 dB. What is the sound intensity in W/m^

A: Given:- The distance d = 30 m  The level of sound of jet airplane  L = 100 dB  Find:-  The Sound…

Q: What is the intensity of a sound wave if the power output of the source is 1.58 W and the surface…

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Q: A sound wave propagating in air has a frequency of 3.70 kHz. Calculate the change in wavelength when…

A: Given data The frequency of the sound wave is f = 3.70 kHz = 3700 Hz The temperature of the initial…

Q: A certain source of sound waves radiates uniformly in all directions. At a distance of 20 m from the…

A: Given: The distance of the point from the source is 20 m. The sound level is 51 dB. The reference…

Q: A jet engine emits sound uniformly in all directions, radiating an acoustic power of 3.13×105 W.…

A: Given data Radiation of acoustic power is P=3.13×105 W Distance between the source and  the engine…

Q: The sound of a loud rock concert has an intensity of 0.1240.124 W/m2. What is the intensity level in…

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Q: Thanks! A sound wave with intensity 25.4 m W/m? interferes destructively with a sound wave that has…

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Q: A bat can detect small objects, such as an insect, whose size is approximately equal to one…

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Q: 49.4-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The density of air at…

A: (given) Speed (v) of sound in air at 20.0°C = 343 m/s             Density (ρ) of air at 20.0°C =…

Q: Move away from a sound source, from distance r, to r₂ = 2₁. (A) By what factor does the intensity…

A: Intensity  is inversely proportional to the square of the distance from the source. β = 10 logI/I0 β…

Q: A SONAR system fixed in a submarine operates at a frequency 40.0 kHz. An enemy submarine moves…

A: Calculating the frequncy reflected by the enemey submarine:Note: This frequncy will not be recieved…

Q: The low-frequency speaker of a stereo set has a surface area of 0.05 m2 and produces 1W of…

A: Given: The surface area of the stereo set =0.05 m2 The stereo set produces 1 W of acoustical power…

Q: How many times a minute does a boat bob up and down on ocean waves that have a wavelength of 38.0 m…

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Q: A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies…

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Q: A sound wave is described by D(y,t)=0.2mm sin(8.96y+3140t+pi/4) where y is in meters and t is in…

A: The wave equation for a sinusoidal wave propagating on +x direction: y(x,t)=A sin2πxλ-tT+ϕ0=A sin…

Q: The speed of sound in sea water is 1540 m/s. Dolphins use sonar in the form of high frequency pulses…

A: The speed of sound in sea water   v =1540 m/s Length L = 8.91 cm So, the wavelength required is   λ…

Q: A sound wave propagating in air has a frequency of 5.0 kHz. What is the change in wavelength when…

A: The velocity of sound Vs in air is given by : Vs= 331Tk273m/s., where Tk is the temperature in…

Q: A sound wave from a siren has an intensity of 89.1 W/m2 at a certain point, and a second sound wave…

A: Given:Intensity,I=89.1 W/m2Intensity level= 10 dB Find he intensity level of the sound wave due to…

Q: A point source emits sound isotropically. The sound intensity is 0.02 W/m² at a distance of 7 m from…

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Q: Sound travels at a speed of v = 1570 m/s in water. While underwater a student hears a f = 1.5 kHz…

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Q: The sound intensity 9 m from an isotropically radiating point source is 0.78 W/m². What is the power…

A: Since the point is 9 m from the point source,  so, the  area of sphere covered is A =πr2  ⇒4×π×92 =…

Q: The low-frequency speaker of a stereo set has a surface area of 0.05 m2 and produces 1W of…

A: Given data The area of the surface is A=0.05 m2 The acoustical power is P=1 W The intensity at…

Q: sound travels at 1540 m/s in body tissue. If an ultrasound device sends out a frequency of 10 MHz,…

A: Given, Speed of wave, v = 1540 m/s Frequency of sound, f=10 MHz=10×106=107 Hz

Q: A sound wave is traveling in seawater, where the adiabatic bulk modulus and density are 2.31 × 10⁹…

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

A: The intensity of sound waves can be defined as I=PmaxA.....1Pmax -The maximu power reaching the area…

Q: The higher frequency limit for human hearing is 22.8 kHz. If the air temperature is 33.3 °C, the…

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Q: As a jet plane takes off, at 5.0 m the sound wave intensity is 100 W/m². An observer stands 120 m…

A: The given data we have: Sound intensity at 5 m from the plane: 100 W/m2 The objective is to…

Q: A certain source of sound waves radiates uniformly in all directions. At a distance of 20 m from the…

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Q: f a sound that has a level 3.00 dB lower than a 3.33 ✕ 10−9 W/m2 sound? (b)

A: Givenβ=3 dB