Diego is standing 7.0 m North of a pair of adjacent speakers which are facing him. The speakers are coherently producing a frequency of 686 Hz. Diego's friend, Shalanda, is going to move one of the speakers directly East. How far away from the sta- tionary speaker should Shaland move the other one such that the sound cancels out where Diego is standing? Find the mini- mum amount it should be moved. Hint: what is the condition for coherent waves to cancel?

Diego is standing 7.0 m North of a pair of adjacent speakers which are facing him. The speakers are coherently producing a frequency of 686 Hz. Diego's friend, Shalanda, is going to move one of the speakers directly East. How far away from the sta- tionary speaker should Shaland move the other one such that the sound cancels out where Diego is standing? Find the mini- mum amount it should be moved. Hint: what is the condition for coherent waves to cancel?

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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Concept explainers

Interference of sound

Seiche

A seiche is an oscillating standing wave in a body of water. The term seiche pronounced saysh) can be understood by the sloshing of water back and forth in a swimming pool. The same phenomenon happens on a much larger scale in vast bodies of water including bays and lakes. A seizure can happen in any enclosed or semi-enclosed body of water.

Question

Diego is standing 7.0 m North of a pair of adjacent speakers
which are facing him. The speakers are coherently producing a
frequency of 686 Hz. Diego's friend, Shalanda, is going to move
one of the speakers directly East. How far away from the sta-
tionary speaker should Shaland move the other one such that
the sound cancels out where Diego is standing? Find the mini-
mum amount it should be moved. Hint: what is the condition
for coherent waves to cancel?

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