Understanding Frequency

Frequency refers to how often a wave repeats itself in a given time period. It's measured in Hertz (Hz), which means "cycles per second".

Calculation

* Given:

* Number of waves passing a point: 57

* Time: 3.0 seconds

* Formula:

Frequency (f) = Number of waves / Time

* Calculation:

f = 57 waves / 3.0 seconds

f = 19 Hz

Answer: The frequency of the wave is 19 Hz.