1. The problem statement, all variables and given/known data 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 2. Relevant equations T=1/f 3. 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?