(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Harmonic wave is described by:h(x,t)=cos(2∏(2x-t/2)). The equation is expressed as the height of the wave

At time t_{0}a peak of the wave is at position X_{0}.What is the magnitude of the distance to the nearest peak at this time? How much time passes before another peak is observed at that postion?

2. Relevant equations

Period=2∏/B; Acos(B(X-D))

3. The attempt at a solution

I figured that the first part of the question is asking the wavelength and the second part of the question is finding the period. I simplified the equaiton to cos(4∏(X-t/4)). I don't really know how to distinguish the wavelength from the period from the given equation. They both make sense to equal 1/2.

Thanks for your help in advance!

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Finding the magnitude of the nearest peak and period

**Physics Forums | Science Articles, Homework Help, Discussion**