Problem 4: An audio engineer takes decibel readings at distances of ri = 11 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 B1 = 101 dB on his loudness meter. Randomized Variables T1 = 11 m r2 = 21 m B1 = 101 dB Part (a) What is the intensity of the sound, I1, in watts per square meter, that is measured by the loudness meter when th engineer is a distance of r, from the speaker? Numeric : A numeric value is expected and not an expression. Part (b) How much power P, in watts, is coming from the speaker during the sound check at distance r1? Numeric : A numeric value is expected and not an expression. Part (c) Assuming that the speaker output does not change between the two measurements at r and r2, what sound intensity level B2, in decibels, will the loudness meter report when the engineer is at a distance r2 from the speaker? Numeric : A numeric value is expected and not an expression. B2 =

Problem 4: An audio engineer takes decibel readings at distances of ri = 11 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 B1 = 101 dB on his loudness meter. Randomized Variables T1 = 11 m r2 = 21 m B1 = 101 dB Part (a) What is the intensity of the sound, I1, in watts per square meter, that is measured by the loudness meter when th engineer is a distance of r, from the speaker? Numeric : A numeric value is expected and not an expression. Part (b) How much power P, in watts, is coming from the speaker during the sound check at distance r1? Numeric : A numeric value is expected and not an expression. Part (c) Assuming that the speaker output does not change between the two measurements at r and r2, what sound intensity level B2, in decibels, will the loudness meter report when the engineer is at a distance r2 from the speaker? Numeric : A numeric value is expected and not an expression. B2 =

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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