Question

A sound wave has a wavelength of 0.450 meters. If its speed in cold air is 330 meters/second, what is the wave's frequency?

Answer 1

What will change the velocity of a periodic wave?

Answer 2

\[v=f \lambda\]Where v is the speed of ANY wave, f is the frequency of that same wave and lambda is the wavelength of that wave.
When I say ANY, I mean that the formula applies to sound, light, or any other wave you can think of.

Answer 3

With units [m/s], [1/s] and [m] respectively.