Recent research has shown that the use of earbud-style headphones packaged with MP3 players can cause permanent hearing loss.(a) The intensity of the sound from the speakers of a certain MP3 player (without earbuds) is measured at 3.8 x 10-5 w/m2. Find the decibel level. (Round your answer to the nearest wholenumber.)dB(b) If earbuds are used with the MP3 player in part (a), the decibel level is 90 dB. Find the intensity. (Round your answer to three decimal places.)W/m2(c) Find the ratio of the intensity of the sound from the MP3 player with earbuds to that of the sound without earbuds. (Round your answer to one decimal place.)

Intensity of sound without earbuds is I1=3.8×10-5 W/m2 Decibel level is given by- dB=10logI1I0where,…

Answered: Recent research has shown that the use…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A sound wave at 20° C has pressure amplitude of 2.00 Pa. The density of air is 1.2 Kg/m and the threshold for hearing intensity is 1012 w/m2. The speed of sound in air is 344 m/s. (a) Find the intensity of the sound wave. (b) Find the intensity in decibels.
Two students are standing the same distance from a source of sound. The first student receives a power of 36 × 10-6 W in their eardrum. The second student receives σ = 1.13 times more power in their eardrum. Part (a) What is the ratio of the diameters of the student's eardrums? Part (b) If the second student's eardrum has a diameter of d = 1 cm what was the intensity of the sound that the student heard, in watts per square meter?
the output power of a spherically symmetric sound source is 6.0 W. the decibel level at a distance d from the source is 88 dB. what is d (in meters)?
a noise level meter reads the sound level in a room to be 85 dB. What is the intensity of sound in W/m^2?
An audio engineer takes decibel readings at distances of r1 = 13 m and r2 = 21 m from a concert stage speaker during a sound check. When he is r1 from the speaker, the engineer registers a decibel level of β1 = 104 dB on his loudness meter. What is the intensity of the sound, I1, in watts per square meter, that is measured by the loudness meter when the engineer is a distance of r1 from the speaker? How much power P, in watts, is coming from the speaker during the sound check at distance r1? Assuming that the speaker output does not change between the two measurements at r1 and r2, what sound intensity level β2, in decibels, will the loudness meter report when the engineer is at a distance r2 from the speaker?
The scream of a little screaming monster reaches the near-side of a sound-insulating wall with an intensity of 95 dB. The manufacturer of the wall claims the material in the wall will reduce the sound energy by 99%. If this is true, what intensity, in decibels, of sound will be heard on the other side of the wall?
Please asap
(a) The intensity of the sound from a certain MP3 player (without earbuds) is 4.1 × 10−5 W/m2. Find the intensity level in decibels. (Round your answer to the nearest whole number.) dB(b) The intensity of the sound of the MP3 player in part (a) with earbuds is 5.0 × 10−3 W/m2. Find the intensity level in decibels. (Round your answer to the nearest whole number.) dB
The intensity level in decibels is defined as 10 log10(I/I0), where I0 is a reference intensity equal to the human threshold of hearing, 10–12 W/m2. What is the intensity of the threshold of pain, 120 decibels? answer is : 10° W/m2 I'm not sure how they got this answer
A sound wave radiates from a speaker in all directions. If the power of the sound source is 200 W, calculate the intensity level in dB of the sound wave 1 km from the speaker. Hint: Presume that the sound waves spread as a sphere (not a hemisphere).
The low-frequency speaker of a stereo set has a surface area of A = 0.05 m2 and produces 1 W of acoustical power. (a) What is the intensity at the speaker? (b) If the speaker projects sound uniformly in all directions, at what distance from the speaker is the intensity 0.1 W/m2 ?
Chapter 16, Problem 069 Your answer is partially correct. Try again. ES. lem The bellow of a territorial bull hippopotamus is measured at 116 dB above the threshold of hearing. What is the sound intensity? Hint: The threshold of human hearing is Io = 1.00 x 10-12 W/m2. plem %3D blem Number Units W/m^2 ▼ oblem the tolerance is +/-5% oblem roblem SHOW HINT Problem LINK TO TEXT Problem Problem By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. Problem Question Attempts: 1 of 6 used SUBMIT ANSWER SAVE FOR LATER Problem Earn Maximum Points available only if you 8:02 PM 4/29/2020 19 e here to search 21 ASL pause break prt sc sysrq f11 f12 insert f8 f9 f10 f4 f5 f6 f7 f2 f3 backspace & %24 80 4 96

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