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Physics
Physics
Problem
A wave is described by
y
(
x
,
t
)
=
0.5
cos
(
0.04
x
+
6
t
)
y(x,t)=0.5\cos(0.04x+6t)
y
(
x
,
t
)
=
0.5
cos
(
0.04
x
+
6
t
)
(SI units). In which direction does the wave propagate? a) Positive
x
x
x
-direction b) Positive
y
y
y
-direction c) Negative
x
x
x
-direction d) The wave is stationary (does not propagate)
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