Question

explain the expression of a wave​

Answer 1

Answer:

Wave is wave .............

Answer 2

Answer:

hope this will help you dear friend and please mark me as brainliest.

Explanation:

For a wave y=Acos(kx−ωt),

k=λ2π=40cm2π=0.157rad/cm

ω=2πν=2π×8=50.3rad/s

A is the amplitude of the wave=15cm

Here the cos variation ensures that the displacement of x=0 at t=0 is maximum and equal to amplitude.

Thus y=(15cm)cos(0.157x−50.3t)