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10. With length in centimeters and time in seconds, we have
u =
du
dt
=
225
π
sin (
π
x
−
15
π
t
) .
Squaring this and adding it to the square of 15
π
y
, we have
u
2
+ (15
π
y
)
2
=
(225
)
2
[sin
2
(
x
−
15
t
) + cos
2
(
x
−
15
t
)]
so that
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics

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