/sqt/

I have a physics exam tomorrow and I'm going through some past exams now. What the fuck is pic related even asking and what's the general strategy to solve it?

nigga this so ez

So what's the answer? Is it e?

You start with the wave equation and build up from there:
[eqn] \nabla^2 \psi = \frac{1}{c^2} \frac{\partial \psi}{\partial t} [/eqn]
The rest is trivial math so I'll let you do it.

I haven't studied physics since highschool, even though I'm studuying math.
x is there to describe a family waves, right? Like, at x=1 then the wave is like this, at 2 like this, etc. , right?
If yes, then the families with the same periods are obviously I&III and II&IV.

u sound like professor material desu

*notices your partial derivative* OwO what's this?

en.wikipedia.org/wiki/Wave_equation#Derivation_of_the_wave_equation

56-43=12

i dont understand man