f = frequency = number of waves produced by a source per second, in hertz Hz. T = period = time it takes for one complete vibration or oscillation, in seconds s. A boat at sea bobs up and down as ...

The period of vibration is 0.0023 s. There are three equations for calculating frequency: \(\text{frequency f =}~\frac{\text{number of waves to pass a point}}{\text{time taken in seconds}}\) ...