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A standing wave on a wire is y = 0.09 sin(2.5π x)… | StemPy Lab
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A standing wave on a wire is y = 0.09 sin(2.5π x) cos(140π t), in SI units. What is the speed of the travelling waves that form it?
Physics
Medium
High School (11–12)
Waves & Sound › Superposition and Standing Waves
JEE Main
Created by
StemPy Lab
A standing wave on a wire is
y
=
0.09
sin
(
2.5
π
x
)
cos
(
140
π
t
)
y = 0.09\sin(2.5\pi x)\cos(140\pi t)
y
=
0.09
sin
(
2.5
π
x
)
cos
(
140
π
t
)
, in SI units. What is the speed of the travelling waves that form it?
350
m/s
350\ \text{m/s}
350
m/s
112
m/s
112\ \text{m/s}
112
m/s
56
m/s
56\ \text{m/s}
56
m/s
28
m/s
28\ \text{m/s}
28
m/s
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