Question 4(a) Write your understanding about coherent waves.(b) A loudspeaker hanging on a long rod radiates sound waves uniformly in all directions. At adistance of 15.0 m from the speaker, the sound intensity is 0.25 W/m². At what distance isthe intensity 0.1 W/m²?Question 5(a) A 1.4-kg 15-cm-diameter solid sphere is rotating about its diameter at 70 rev/min. What isits kinetic energy?(b) Explain why you expect an object made of a stiff material to vibrate at a higher frequencythan a similar object made of a more flexible material.

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Question 4 (a) Write your understanding about coherent waves. (b) A loudspeaker hanging on a long rod radiates sound waves uniformly in all directions. At a distance of 15.0 m from the speaker, the sound intensity is 0.25 W/m². At what distance is the intensity 0.1 W/m²?

Question 4 (a) Write your understanding about coherent waves. (b) A loudspeaker hanging on a long rod radiates sound waves uniformly in all directions. At a distance of 15.0 m from the speaker, the sound intensity is 0.25 W/m². At what distance is the intensity 0.1 W/m²?

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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Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

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