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Spencerg325
14.10.2019 •
Physics
Two identical loudspeakers that are 5.00 m apart and face toward each other are driven in phase by the same oscillator at a frequency of 875 hz. the speed of sound in the room is 344 m/s. if you start out standing midway between the speakers, find the shortest distance you can walk toward either speaker in order to hear a minimum of sound.
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Ответ:
0.0982 m
Explanation:
Given
distance between two loudspeaker is 5 m
frequency (f )=875 Hz
speed of sound (v)=344 m/s
Let
be the smallest distance moved by observer then
Position of observer w.r.t to first speaker is
Position of observer w.r.t to second speaker is
For Destructive interference
For minimum m=0
and![\lambda =\frac{v}{f}](/tpl/images/0319/5826/6ac57.png)
Ответ:
dunno havent read the story
Explanation: