(5) (a) What factor increase in intensity does a 3 dB increase in decibel level correspond to? (answer: 2 times increase) (b) The intensity of a sound decreases by a factor of 8. What change in decibel level does this correspond to? (answer: 9 decibel decrease)

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: The warning tag on a lawn mower states that it produces noise at a level of 95.0 dB. What is this in…

A:

Q: A quiet home has a sound intensity of approximately 1.0 x 10-9 W/m2. When my french bulldog, Grey,…

A:

Q: The intensity at a certain location is 1.021 W/m2. What is the sound intensity level at this…

A: Intensity of sound at a certain location (I) = 1.021 Wm2

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 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 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: But suppose the distance increases by the factor 4.3. (A) Now what is the change in sound intensity?…

A: Given, the distance increases by a factor 4.3, let the initial distance be r1 and the new distance…

Q: A sound wave from a siren has an intensity of 118.7 W/m2 at a certain point, and a second sound wave…

A:

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

A:

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: The warning tag on a lawn mower states that it produces noise at a level of 93.0 dB. What is this in…

A:

Q: What is the decibel level of a sound that has an intensity of 57.5 x 10-5 W/m2? Assume the…

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

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

A:

Q: Bats use sound waves to catch insects. Bats can detect frequencies up to 116 kHz. If the sound waves…

A: a. Given data The frequency detected by the bats is given as f = 116 kHz. The speed of the sound…

Q: The table gives an estimate for the sound intensity of a whisper at 1.0 m. What is the sound…

A:

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

A:

Q: By how many decibels does the intensity level of a sound increase when you increase the the…

A: increase in intensity of sound = 2.97 times I' = 2.97 I

Q: What is the decibel level of a sound that has an intensity of 87 x 10-5 W/m?? Assume the standard dB…

A:

Q: Residents of Hawaii are warned of the approach of a tsunami by sirens mounted on the top of towers.…

A: decibel level of sound of siren at a distance of 2 m = 128 dB

Q: The relationship between the number of decibles B and the intensity I in watts per square meteris…

A: Let original intensity = I new intensity = 100 I B = 10 log ( I * 1012)B1 = 10 log ( I * 1012)B2 =…

Q: The warning tag on a lawn mower states that it produces noise at a level of 99.0 dB. What is this in…

A:

Q: If 10 W/m² corresponds to 160 dB, what is the sound intensity level, in decibels, of ultrasound with…

A:

Q: The level of sound D in decibels is defined as follows: D = 10 log (10 16 ) 10-16 where I is the…

A:

Q: An average factory has a sound intensity level of 80 dB, and a boiler shop has a sound intensity…

A:

Q: W 1. (a) What is the intensity of a sound that has a level 7.5 dB lower than a 4.10 9 Intensity: W…

A:

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 noise has an intensity of 2.4×10-8 W/m2. If the threshold of human hearing is I0 = 1.0×10-12 W/m2,…

A: Given data: Intensity (I) = 2.4 ×10-8 W/m2 Threshold hearing (I0) = 1.0×10-12 W/m2 Required: The…

Q: The intensity level in decibels is defined as 10 log10(I/I0), where I0 is a reference intensity…

A: Given data:  Intensity level in decibels dB = 10 log10(I/I0) Here I0 = 10-12 W/m2 The intensity of…

Q: The fundamental frequency of a closed pipe is 200Hz. What is the frequency of first overtone?

A: The fundamental frequency of a closed pipe,