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15. We write the string displacement in the form
y
=
y
m
sin(
kx
+
ωt
). The plus sign is used since the
wave is traveling in the negative
x
direction. The frequency is
f
= 100 Hz, so the angular frequency is
ω
=2
πf
=2
π
(100 Hz) = 628 rad
/
s. The wave speed is given by
v
=
p
τ/µ
,where
τ
is the tension in
the string and
µ
is the linear mass density of the string, so the wavelength is
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.
 Fall '08
 SPRUNGER
 Physics

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