This preview shows page 1. Sign up to view the full content.
(c) Since
f
= 120 Hz,
ω
= 2
π
f
= 754 rad/s
2
7.5 10 rad/s.
≈×
(d) The sign in front of
is minus since the waves are traveling in the +
x
direction.
The results may be summarized as
y
= (3.0 mm) sin[(31.4 m
−
1
)
x
– (754 s
−
1
)
t
]] (this
applies to each wave when they are in phase).
68. We use Eq. 1652 in interpreting the figure.
(a) Since
y
’
= 6.0 mm when
φ
= 0, then Eq. 1652 can be used to determine
This is the end of the preview. Sign up
to
access the rest of the document.
This note was uploaded on 04/16/2011 for the course PHYSICS 191262 taught by Professor Najafzadeh during the Spring '09 term at The Petroleum Institute.
 Spring '09
 NAJAFZADEH
 mechanics

Click to edit the document details