At a certain distance from a fire alarm, the sound intensity level is 85.0 dB. (a) What is the intensity of this sound? (b) How many times greater is the intensity of this sound than that of a 67.0 dB sound?

Q: A blue whale can emit sound at a sound intensity level of 188 dB. The typical human shout has a…

A: Sound intensity is a measure of the amount of sound energy that passes through a unit area in a unit…

Q: A typical sound level for a buzzing mosquito is 35 dB, and that of a vacuum cleaner is approximately…

A: Given, sound level for a buzzing mosquito=35dB sound level for vacuum cleaner=65dB

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: 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: 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: A brand of earplugs reduces the sound intensity level by 27 dB. By what factor do these earplugs…

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

A:

Q: The African cicada is the world’s loudest insect, producing a sound intensity level of 107 dB at a…

A:

Q: You are listening to the radio when one of your favorite songs comes on, so you turn up the volume.…

A: Given Data The sound intensity is increased by 21.0 dB. We have to find the by what factor did the…

Q: The decibel level of a sound is defined to be $100 (7) B= 10 log where I is the intensity of the…

A: A train horn with a decibel rating ofwith a radius of.We need to find the intensity of the train…

Q: When a person wears a hearing aid, the sound intensity level increases by 24.4 dB. By what factor…

A:

Q: What is the sound pressure level at a distance of 21 m from the source

A: Sound pressure level at a distance of 21 from source in dB with integer precision is 75 dB .…

Q: A source of sound has an intensity I1 and when its sound level is measured at a fixed distance the…

A: The initial sound intensity of the source is The final sound intensity of the source is The…

Q: In a corner of Downtown Houston, the sound intensity level is 120 dB. What is the intensity of the…

A:

Q: Problem 6. The low-frequency speaker of a stereo set has a surface area of 0.05 m² and produces 1 W…

A: Given: A=0.05 m2P=1 W

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 sound source emits 26.0 W of acoustical power spread equally in all directions. What is the sound…

A: Power emitted by source = P = 26 wDistance of point from source = r = 31.5 m

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

A: Answer:-  The hearing aid increase the intensity of sound level 34.2 dB or has a gain 34.2 dB . The…

Q: the sound intensity a certain distance from a sound source is 4.0x10^12 W/m^2. A change occurs in…

A:

Q: A 60 man choir sings with the sound intensity of 70 dB in a 12 m distance from the choir. a) What is…

A: Given information: Here, β is the sound level at r1 distance, r2 is the distance at which the…

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

A:

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

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: A sound wave at 20° C has pressure amplitude of 2.00 Pa. The density of air is 1.2 Kg/m and 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 intensity 50 m from a wailing tornado siren is 0.10 W/m2. What is the sound intensity…

A:

Q: The sound intensity level of a device is 2.00×10−2 W/m2. Convert this sound intensity level to…

A: Intensity of the sound level is I = 2.00×10−2 W/m2

Q: The African cicada is the world’s loudest insect, producing a sound intensity level of 107 dB at a…

A: The sound level at 0.50 m is 107 dB. So, the sound level at 3 m is,

Q: What is the decibel level of a sound that has an intensity of 10.4 x 10-5 W/m2? Assume the…

A: The sound intensity is The reference sound intensity is Find:Sound level for given sound intensity.

Q: (a) The intensity of the sound from a certain MP3 player (without earbuds) is  4.1 × 10−5 W/m2.…

A:

Q: A sound wave radiates from a speaker in all directions. If the power of the sound source is 200 W,…

A: Given data -power of the sound source ( P) = 200 Wdistance of the wave source from the speaker ( r )…

Q: Chronic exposure to loud noises can be damaging to one's hearing. This can be a problem in…

A: We have given the intensity level of sound produced by a machine andAnd the intensity is reduced by…

Q: The intensity of a certain sound wave is 4.0 x 10-4 W/m2. If the intensity level of the sound…

A: Given- The intensity of a certain sound wave is I0=4.0 x 10-4 W/m2 L=30dB

Q: Sound 1 has an intensity of 36.0 W/m2. Sound 2 has an intensity level that is 2.3 dB greater than…

A: