Question

A wave is modeled by the wave function y(x,t) = (0.51m) sin[(2π/7.9m)(x-(14.3m/s)t)]. What is the period of the wave?

Round your answer to 2 decimal places.

Pls do not forget the unit

Answer 1

$$y(x,t) = A \sin[(2π/\lambda)(x-v t)]\\ y(x,t) = (0.51m) \sin[(2π/7.9m)(x-(14.3m/s)t)]$$

The period of wave

$$T=\lambda/v=(7.9\:\rm m)/(14.3\: m/s)=0.55\:\rm s$$