if a wave has a velocity of 24 m/s and a period of 3.0 s. what is he frequency of the wave in Hz?
We know that by definition Frequency is the reciprocal of period.
So
f=1/3=0.33Hz
The frequency doesn't depend on the wave speed.
Frequency is simply the reciprocal of the period.
Frequency= 1 / (3sec) = 1/3 per sec = 1/3 Hz.