- 457

- 0

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

I must use the wave equation to to find the speed of a wave.

y(x,t) = (3.0mm) sin [(4.00mm^-1)x - (7.00 s^-1)t]

**2. Relevant equations**

Here's the wave equation. It has strange symbols.

(∂^2 y) / (∂ x^2) = (1 / v^2) ((∂^2 y)/ (∂^2 t)

**3. The attempt at a solution**

There's no way that I can attempt this solution if I don't know how to use this formula.

Do I just take the derivative.

Last edited: