The drawing shows two strings that have the same lengthand the same linear density. The left end of each string is attached to a wall,while the right

opatovaL

opatovaL

Answered question

2021-03-21

 
Two identical threads with the same length and linear density are depicted in the drawing. Each string has a left end that is fastened to a wall and a right end that crosses a pulley and is attached to various weights of things (Wa and Wb). Different standing waves are set up on each string, but theirfrequencies are the same. If Wa=44 N, what is Wb.

Answer & Explanation

diskusje5

diskusje5

Skilled2021-03-23Added 82 answers

Two identically sized and linearly dense strings are depicted in the drawing. The left end of each string is attached to a wall, while the right end passes over a pulley and isconnected to objects of different weights (Wa and Wb). Different standing waves are set up on eachstring, but their frequenciesare the same.
If Wa=44 N what is Wb λa2=l
λa=2l
and λb=λ=l
Since V=λv=Wμ or λ=1(v)Wμ
For first: λa=1(v)Waμ
For second: λb=1(v)Wb{μ}
Note: Rest of the parts are constant
Wb=Wa4
=444 N
Wb=11N

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