Vice |S Suppose tnat a public address sy X +us.com9 Student Center A SaltBBLearn 6 My NAU P* SodexoAcademicWorks, Inc.My Bb Learn Tab 1...w Scholarships :)PRINTER VERSION1 BACKNEXTChapter 16, Problem 056Suppose that a public address system emits sound uniformly in all directions and that there are no reflections. The intensity at alocation 26 m away from the sound source is 3.0 x 10-4 W/m2. What is the intensity at a spot that is 89 m away?NumberUnitsthe tolerance is +/-5%SHOW HINTLINK TO TEXTBy accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by yourinstructor.Question Attempts: 0 of 6 usedSAVE FOR LATERSUBMIT ANSWEREarn Maximum Points available only if youanswer this question correctly in fourattempts or less.8:04 PM214/29/202019

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Answered: Vice | S Suppose tnat a public address…

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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If the wavelength of the standing wave of the vibrating string is 0.6 m, then calculate the length of the string (wire) in metre. а. 1.80 b. 0.20 O c. 0.90 d. 0.40 34°C t pilt A hp
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O Attempt 4 Bats rely on sound localization to be able to fly during the night. On a cool 20°C summer night, a bat produces an ultrasonic sound with a frequency of 35 kHz. The speed of sound in air at 20°C is 340 m/s. What is the wavelength 1 of this ultrasound, in meters? %3D .01 m While remaining stationary, the bat emits a sound pulse and receives an echo after 0.150 s. How far away, in meters, is the reflecting object from the bat?
.Negative decibels? Our discussion of decibels did not mention that they can be negative. On the Redmond, Washington campus of Microsoft is an anechoic chamber that, according to Guinness World Records, is the quietest place in the world. It measures –20.3 decibels. a. What is the relative intensity of a sound measuring –1 decibels? Round your answer to one decimal place. b. What is the relative intensity of a sound measuring –10 decibels? Round your answer to one decimal place. c. What is the relative intensity of Microsoft's anechoic chamber? Round your answer to three decimal places. d. Is it possible for the relative intensity to actually be zero?
3 rces The sound of normal breathing is not very loud, with an intensity of about 11 dB at a distance of 1 m away from the face of the breather. Note that in this problem sound intensity in decibels is denoted 3; intensity in W/m² is denoted I View Available Hint(s) distance Ddetect in meters. Ddetect = 3.16 m Submit Previous Answers ✓ Correct Part B In general, if a sound has intensity of 3 dB at 1 m from the source, at what distance de from the source would the decibel level decrease to 0 dB? Since the limit of hearing is 0 dB this would mean you could no longer hear it. Express the distance in terms of B. Be careful about your signs! View Available Hint(s) Submit IVE] ΑΣΦ do 3.55 3 Previous Answers X Incorrect; Try Again; 5 attempts remaining < Return to Assignment Provide Feedback P Pearson m Copyright © 2022 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |
QUESTION 9 Two speakers emit incoherent sound waves into the open air. One of them produces 75W of power. A microphone is placed ata position that is 12m trom each speakers and it recelves a tota intensity of 0.25sw/m. What is the power output of the second speaker? O Need more info to solve. O 151 W O 377 W O38 W
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A cable is stretched between supports 15.0 m apart. The tension is 58.0 N. A wave pulse takes 0.950 s to travel from one end of the cable to the other and back. What is the mass of the cable? i kg
Urgent please! A firecracker produces a power of 2.5x10-3 mw.a. What is the intensity of a firecracker at a distance of 3.00 m from thefirecracker?b. How many firecrackers would be required to produce a sound level of 120db at a distance of 5.00 m from the firecrackers?
A guitar string 75.0cm in length is strung to play the note C at a frequency of 880Hz as it 3rd harmonic. a.) what is the length of the transverse wave on the guitar string? b) what is the speed of this transverse wave along the guitar string? c.) what is the length of the longitudinal sound wave that travels through the air?
S A person stands 13.00 m from a speaker, and 8.00 m from an identical speaker. What is the wavelength of the first (n=1) interference maximum (constructive)? (Speed of sound = 343 m/s) (Unit = m) demy of Science. All Rights Reserved. =h H K hulu 20 Enter New ✔
Part B A52-dB sound wave strikes an eardrum whose area is 5.0 x 10m The intensity of the reference level required to determine the sound level is 1.0 x 10-1 W/m 1 yr 3.156 x 107s At this rate, how long would it take the eardrum to receive a total energy of 1.0 J? Express your answer using two significant figures. ΑΣΦ t 3D yr Submit Request Answer Previous の hp hp f5 f6 f7 f8

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