en two pumps are both operating, the sound pressure level at a distance of 10 m from the pumps is 101.8 dB. When pump A is turned off (only pump B operating), the measured sound pressure level at 10 m from the pu

Q: The speed of sound in air is 331 m/s at atmospheric pressure and 0 Celsius.  Suppose you put a…

A: we know that

Q: How far away could you still detect a sound source with 100 mW of acoustic power released for 0.010…

A: The sound pressure level (SPL) of 30 dB re 20 µPa means that the sound has a pressure that is 30 dB…

Q: The speed of sound in air is 331 m/s at atmospheric pressure and 0 Celsius. Suppose you put a…

A:

Q: A sound wave arriving at your ear is transferred to the fluid in the cochlea. If the intensity in…

A:

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

A: Increase in dB level, B2 - B1 = 30.0 dB The intensity picked up by the hearing aid, I1 = 3.9×10-10…

Q: A 72.0 dB sound wave strikes an eardrum whose area is 4.60*10^-5 m^2 . (i) What sound intensity (in…

A: (i) Write the formula for the sound intensity in dB.

Q: in 20°C air has a pressure amplitude of 0.800 Pa. What is the intensity of the wave? (Assume the…

A: Given:-  The temperature T = 20oC = 20+273 = 293 K  The pressure amplitude is P = 0.800 Pa  The…

Q: (a) In a liquid with density 1300 kg/m3, longitudinal waves with frequency 400 Hz are found to have…

A: a) The expression for find speed of the wave is v=fλ Substitute values in the above equation…

Q: A sound wave having a frequency of 253 Hz travels through air at 20 °C. The decibel level at a…

A: Given  Distance r1=32.2 m β1=77.1 dB r2=32.2-14.1=18.1 m

Q: What should be the power output of a speaker in order to produce a sound wave that has pressure…

A: p=190 mPa=190×10-3 Par=6.75 mρ=1.22 kg/m3

Q: A Jackhammer from 1 meter away produces roughly 100dB of sound.  What is the sound pressure caused…

A: Write the expression for loudness

Q: The sound from a trumpet radiates uniformly in alldirections in 20°C air. At a distance of 5.00 m…

A: Given: Distance=5 m Sound intensity level=52.0 dB Frequency=587 Hz Temperature=20°C

Q: You work at a building site and the noise level has been measured at 95 dB. You need to wear…

A:

Q: A sound wave arriving at your ear is transferred to the fluid in the cochlea. If the intensity in…

A:

Q: A loud factory machine produces sound having a displacement amplitude in air of 1.00 μmμm, but the…

A: Given:displacement amplitude of air molecules, A​= 1×10−6 mmax pressure amplitude, Po = 10.0 Pabulk…

Q: A sound level meter 5.0 m from a jet engine measures 130.0 dB. The sound power output of the jet…

A: Given: The distance of the sound level meter is r = 5 m The sound intensity in decibel is given as…

Q: An outdoor concert speaker emits sound at 125 dB, as measured 1.00 meter away. How far away do…

A: Given: Sound intensity level=125 dB Initial distance(R1) = 1 m Relatively safe sound intensity level…

Q: he amplitude of a sound wave is measured in terms of its maximum gauge pressure. By what factor does…

A: Given: The sound level is ∆β=36 dB. The expression for sound level is: ∆β=10 dBlog10A2A12 Here, A1…

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: Unless otherwise indicated, for this problem , assume that the speed of sound through human tissues…

A:

Q: Approximatelya third of people with normal hearing have ears that continuously emit a low-intensity…

A: In the given observation, the sound wave has some frequency with a certain pressure amplitude. We…

Q: An audio engineer takes decibel readings at a distance of r1= 11m and r2= 23m from a concert stage…

A:

Q: A single sound source, measured at a particular point, produces a sound pressure level of 40.1…

A:

Q: The sound intensity level inside a typical modern airliner inflight is 66.0 dB. The air in the cabin…

A: Sound intensity level = 66.0dBAir in the cabin (density)=0.920 kg/m3speed of sound = 344…

Q: onvert the following sound pressure levels to sound pressure: Lp = 80 dB Lp = 15 dB

A: Given data, Lp=80 dBLp=15 dB

Q: Two students hear the same sound and their eardrums receive the same power from the sound wave. The…

A: Given that First Intensity I1 = 0.79 W/m2 Second intensity I2 = (1.18)(0.79) W/m2 = 1.18I1 Diameter…

Q: The area of a typical eardrum is about 5.0 × 10–5m2 . Calculate the sound power (the energy per…

A: It is given that,

Q: Loudspeakers can produce intense sounds with surprisingly small energy input in spite of their low…

A: Sound intensity level = β = 85.1 dB Diameter of the speaker = d = 15.5 cm = 15.5 cm×1 m100 cm=0.155…

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

A:

Q: Two pure tone waves, both with a frequency of 1 kHz, are moving in opposite directions in air along…

A:

Q: How far must one stand from a 2.2 mW point sound source if the intensity at that location is at the…

A: Given Data : The power of the point source is given as P = 2.2mW.

Q: How far must one stand from a 3.8 mW point sound source if the intensity at that location is at the…

A: The threshold intensity for the human ear is 0 DB. that means intensitt is  I = 1.0 x 10-12 w/m2 .

Q: The speed of sound in air is 331 m/s at atmospheric pressure and 0 Celsius.  Suppose you put a…

A: Given Speed of sound in air  (V0) = 331 m/s                                at 0° C   We know speed…

Q: mplified through a sound system the amplified sound has a sound intensity level that is 12.2 dB…

A: We have givenA sound system the amplified sound has a sound intensity level that is 12.2 dB greater…

Q: Loudspeakers can produce intense sounds with surprisingly small energy input in spite of their low…

A: Given:sound intensity level, β= 90.0 dBdiameter of the speaker, D = 12 cm ∴ Radius of speaker, R =…

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

A:

Q: the output power of a spherically symmetric sound source is 6.0 W. the decibel level at a distance d…

A:

Q: The sound level 23.8 m from a loudspeaker is 66.7 dB. What is the rate at which sound energy is…

A:

Q: Describe how you would calculate the wavelengths of sounds at the extremes of the audible range, 20…

A:

Q: One of the loudest sound generators ever created is the Danley Sound Labs Matterhorn. When run at…

A: Given data: Intensity of the speaker, β=94 dB Input power, Pin=40,000 W

Q: The following five problems should be calculated on paper, scanned or photographed, and submitted…

A: