**Sound Intensity Calculation for Trumpets**A trumpet creates a sound intensity level of \(1.27 \times 10^2\) dB at a distance of 1.20 m.**(a)** What is the sound intensity of a trumpet at this distance?*Answer:* \(\_\_\_\_\_\) \(\text{W/m}^2\)**(b)** What is the sound intensity of five trumpets at this distance?*Answer:* \(\_\_\_\_\_\) \(\text{W/m}^2\)**(c)** Find the sound intensity of five trumpets at the location of the first row of an audience, 6.90 m away, assuming, for simplicity, the sound energy propagates uniformly in all directions.*Answer:* \(\_\_\_\_\_\) \(\text{W/m}^2\)**(d)** Calculate the decibel level of the five trumpets in the first row.*Answer:* \(\_\_\_\_\_\) dB**(e)** If the trumpets are being played in an outdoor auditorium, how far away, in theory, can their combined sound be heard?*Answer:* \(\_\_\_\_\_\) m**(f)** In practice, such a sound could not be heard once the listener was 2-3 km away. Why can't the sound be heard at the distance found in part (e)?*Hint:* In a very quiet room the ambient sound intensity level is about 30 dB. *Answer:* \(\_\_\_\_\_\)

Given : Sound intensity level β = 127 dB Distance r = 1.2 m

A trumpet creates a sound intensity level of 1.27 x 10 dB at a distance of 1,20 m. (a) What is the sound intensity of a trumpet at this distance? W/m2 (b) What is the sound intensity of five trumpets at this distance? W/m2 Enter your search term (c) Find the sound intensity of five trumpets at the location of the first row of an audience, 6.90 m away, assuming, for simplicity, the sound energy propae directions. W/m2 (d) Calculate the decibel level of the five trumpets in the first row. (e) If the trumpets are being played in an outdoor auditorium, how far away, in theory, can their combined sound be heard? (f) In practice such a sound could not be heard once the listener was 2-3 km away. Why can't the sound be heard at the distance found in part (e)? Hint: In a the ambient sound intensity level is about 30 dB.

A trumpet creates a sound intensity level of 1.27 x 10 dB at a distance of 1,20 m. (a) What is the sound intensity of a trumpet at this distance? W/m2 (b) What is the sound intensity of five trumpets at this distance? W/m2 Enter your search term (c) Find the sound intensity of five trumpets at the location of the first row of an audience, 6.90 m away, assuming, for simplicity, the sound energy propae directions. W/m2 (d) Calculate the decibel level of the five trumpets in the first row. (e) If the trumpets are being played in an outdoor auditorium, how far away, in theory, can their combined sound be heard? (f) In practice such a sound could not be heard once the listener was 2-3 km away. Why can't the sound be heard at the distance found in part (e)? Hint: In a the ambient sound intensity level is about 30 dB.

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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