Question

A wave represented by y= (3.00m) sin (2.5t-3.14x). Find the (a) amplitude, (b) angular frequency, (c) frequency, (d) wave number, (e) wavelength, and (f) speed of the wave

Answer 1

Answer

Amplitude

A=3.00m

Angular frequency =2.5rad/s

Frequency =2.5/2(3.14) =0.398Hz

Wave number k=3.14 $m^{-1}$

Wavelength

$\lambda=\frac{2 \pi}{k}\\=\lambda=\frac{2 \pi}{3.14}=2m$

$v=f\lambda=0.398(2) =0.79m/s$