Answered: What is the resultant sound intensity…

What is the resultant sound intensity level when a 82 dB sound and a 87 dB sound are heard simultaneously? Answer 88.2 dB.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter17: Physics Of Hearing

Section: Chapter Questions

Problem 19PE: (a) What is the intensity of a sound that has a level 7.00 dB lower than a 4.00109W/m2 sound? (b)...

See similar textbooks

Related questions

Q: Find the sound level in dB of 4.72 x 10-2 w/m? ultrasound used in medical diagnostics. dB

A: The expression for find sound level is β=10logII0

Q: On a busy construction site at 1:00 p.m. the sound level is 124 dB, while at 4:00p.m. it is 100 dB.…

Q: A shouting voice is 85 db or higher. If 10 people shouted, each with a level of 85 db, what would…

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: Given that the threshold of hearing is 10-16 W/cm2, the intensity of a sound wave with a power of…

A: Intensity of sound wave (I) = 10-12 Wcm2Threshold of hearing (Io) = 10-16 Wcm2

Q: If a 30 dB sound is increased in intensity by a factor of 10“, what is its new intensity level? (dB)

A: Given Initial intensity level of sound L1 = 30 dB Increase in intensity by a factor 104 To find,…

Q: When one person was talking in a small room, the sound intensity level is 49 dB everywhere within…

Q: a rod speaker has an output of 70 DB if the volume of the sound is turned up so that the output…

Q: The intensity of a sound level of 100 db is equal to knowing that the threshold of hearing is 10-12…

A: Given : Sound level, β = 100 dB Threshold of hearing, Io = 1×10-12 W m-2 Determine the…

Q: Intensity of sound = (10] ^(-6) W/m^2, measured the intensity level? if the sound inaudible or…

Q: What is the intensity of a 62-dB sound-level?

A: We have to find the intensity of sound . and sound level (β) = 62 dB is given in the question.…

Q: What is the decibel rating of a sound that has an intensity of 3.4 x 108 Wicm2? O 85 dB O 68 dB O 91…

A: Given:- What is the decibel rating of a sound that has an intensity of 3.4 x 10-8 W/cm2? Find :-…

Q: A sound level of 50 dB has ___________ the amplitude of a 30 dB sound. ten times twenty times…

Q: The source of a sound wave has a power of 9 μW. If it is a point source, what is the sound intensity…

A: Given thatpower=9μw=9×10-6wdistance (r)=35msound intensity…

Q: What sound level in dB is produced by earphones that create an intensity of 6.00 ✕ 10−2 W/m2?

A: Given Sound intensity I = 6.00 ✕ 10−2 W/m2 Loudness of sound in dB is defined as :- L = 10…

Q: A sound intensity level is increased from 30 dB to 50 dB, by what factor does the sound intensity…

Q: A flat sound wave with a power of 100 nW/m² expands at a speed of 340 m/s. What is the average…

Q: A speaker produces sound with a power of 9.3 W. What is the intensity level of the sound 20 m away…

A: The intensity of sound is, I=PA =9.34π202 =1.85×10-3 W/m2

Q: A 5E+01 dB sound has an intensity increase over a 20 dB sound by a factor of

Q: A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the…

A: Given :- n=500 hz, d=450m Introduction:- The time interval between two successive compressions is…

Q: A sound level of 0 dB corresponds to a sound intensity of 0 W/m2. True or False?

A: Sound waves are longitudinal waves. This implies that the direction of propagation of the sound wave…

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: If the threshold of hearing for humans is 1×10-12 W/m2 , calculate the intensity level β (in…

A: Intensity in dB = IdB=10log10II0 I0 = threshold of hearing for humans is 1×10-12 W/m2

Q: If the sound intensity level of one person speaking is 66 dB, what is the sound intensity level…

A: Given: The sound level of the oner person is 66 dB. The nymerb of the person is 150.

Q: What sound intensity level in dB is produced by earphones that create an intensity of 4.00×10-2…

A: Intensity, I = 4 x 10-2 W/m2

Q: A quiet library has a sound intensity level of 40 dB, and a rock band has a sound intensity level of…

A: Here we have to compare two intensity

Q: What is the wavelength in air at 22° C of a 440 Hz sound?

Q: A detector is moved from a position 2.0 cm to a position 16 cm from an ultrasound source. What is…

Q: When one person was talking in a small room, the sound intensity level is 59 dB everywhere within…

A: B1 = 59 dB To find = Resulting sound intensity level if all 8 people started talking simultaneously

Q: What is the intensity level of a sound with intensity of 5.0 10 10 W/m?? (lo - 1017 W/m?) A) 27 dB…

Q: Human hearing is most sensitive around 2500Hz. If the speed is 340 m/s what is the wavelength of…

A: Given, Frequency, Speed of sound,

Q: The relative intensity of the first harmonic of a sound is 70 dB (1000 Hz). The second harmonic of a…

A: Intensity is proportional to p2. p1p2 = 51 I1I2=512=25 I2 = 70/25 = 2.8dB (2000Hz)

Q: The source of a sound wave has a power of 1.00 mW. If it is a point source, (a) what is the…

A: a)The intensity at a certain distance from a point source that emits sound waves isotropically is…

Q: Calculate the sound level (in decibels) of a sound wave that has an intensity 120 µW/m2 a. -8.079 dB…

A: Given, Intensity of sound is 120x10^-6 w/m^2 Now we have to find the sound level

Q: sound intensity

Q: When one person is talking in a small room, the sound intensity level is 70 dB. When there are 8…

Q: a sound with a singular frequency of 580 has an measured intensity of 9.79 x 10-5 w when at a…

Q: Acceptable noise level for human ear: A) > 85 db B) = 85 db C) < 85 db D) None of the above

A: The loudness of sound is measured by the sound pressure level. When the volume or loudness is…

Q: What is the intensity ratio for a sound level increase of 40 dB?

A: Given data The increment of the sound level is: β2 – β1 = 40 dB The expression for the initial…

Q: What intensity level dB in does a sound of 3. 04 × 10–4 W/m2 correspond to?

Q: A typical sound level for a buzzing mosquito is 40 dB, and that of a vacuum cleaner is approximately…

Q: Find the difference in loudness between an average office with an intensity of 1.26 x 10-7 W/m2 and…

Q: A point source of a sound wave has a power of 0.50 W. At what distance from the source will the…

Q: What is the difference in sound level intensity that a person hears at a rock concert if they are…

Q: What is the sound intensity level in dB produced by earphones that create an intensity of 8.5 x…

Question

100%

What is the resultant sound intensity level when a 82 dB sound and a 87 dB sound are heard simultaneously? Answer 88.2 dB.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1+

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

A flute has a length of 58.0 cm. If the speed of sound in air is 343 m/s, what is the fundamental frequency of the flute, assuming it is a tube closed at one end and open at the other? (a) 148 Hz (b) 296 Hz (c) 444 Hz (d) 591 Hz (e) none of those answers
A pipe is observed to have a fundamental frequency of 345 Hz. Assume the pipe is filled with air (v = 343 m/s). What is the length of the pipe if the pipe is a. closed at one end and b. open at both ends?
A sound wave in air has a pressure amplitude equal to 4.00 103 Pa. Calculate the displacement amplitude of the wave at a frequency of 10.0 kHz.
Some studies suggest that the upper frequency limit of hearing is determined by the diameter of the eardrum. The wavelength of the sound wave and the diameter of the eardrum are approximately equal at this upper limit. If the relationship holds exactly, what is the diameter of the eardrum of a person capable of hearing 20 000 Hz? (Assume a body temperature of 37.0C.)
Based on the graph in Figure 17.36, what is the threshold of hearing in decibels for frequencies of 60, 400, 1000, 4000, and 15,000 Hz? Note that many AC electrical appliances produce 60 Hz, music is commonly 400 Hz, a reference frequency is 1000 Hz, your maximum sensitivity is near 4000 Hz, and many older TVs produce a 15,750 Hz whine. Figure 17.36 The relationship of loudness in phons to intensity level (in decibels) and intensity (in watts per meter squared) for persons with normal hearing. The curved lines are equal-loudness curves—all sounds on a given curve are perceived as equally loud. Phons and decibels are defined to be the same at 1000 Hz.
A sound wave can be characterized as (a) a transverse wave, (b) a longitudinal wave, (c) a transverse wave or a longitudinal wave, depending on the nature of its source, (d) one that carries no energy, or (e) a wave that does not require a medium to be transmitted from one place to the other.
Consider a diagnostic ultrasound of frequency 5.00 MHz that is used to examine an irregularity in soft tissue. (a) What is the wavelength in air of such a sound wave if the speed of sound is 343 m/s? (b) If the speed of sound in tissue is 1800 m/s, what is the wavelength of this wave in tissue?
(a) What is the intensity of a sound that has a level 7.00 dB lower than a 4.00109W/m2 sound? (b) What is the intensity of a sound that is 3.00 dB higher than a 4.00109W/m2 sound?
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 30.0 dB. The hearing aid picks up sound having a frequency of 250 Hz at an intensity of 3.0 1011 W/m2. What is the intensity delivered to the eardrum?
The area of a typical eardrum is about 5.00 X 10-5 m2. (a) (Calculate the average sound power incident on an eardrum at the threshold of pain, which corresponds to an intensity of 1.00 W/m2. (b) How much energy is transferred to the eardrum exposed to this sound lor 1.00 mill?
At t = 0, a transverse pulse in a wire is described by the function y=6.00x2+3.00 where xand y are in meters. If the pulse is traveling in the positive x direction with a speed of 4.50 m/s, write the function y(x, t) that describes this pulse.
The textbook gives an estimate for the sound intensity of a whisper at 1.0 mm. What is the sound intensity of a whisper at a distance of 2.0 mm , in W/m^2? What is the corresponding sound intensity level in dB?