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hopelessphysics
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Homework Statement
A wave has a wavelength of 3.0m; a frequency of 25.0 Hz; and amplitude of 14.0 cm. The wave travels in the positive x-direction and has a value of zero at t=x=0. How many complete oscillations has the wave made at t= 20.0 s and x=4.2 m?
A) 3132
B) 1566
C) 498
D) 25
E) 3
Homework Equations
T=1/f
The Attempt at a Solution
Looking at the problem I was confused because if the wave length is 3m and the x distance after it stops is 4.2 meters, wouldn't it only complete one full oscillation?