Question

A 0.25 m wave has a frequency of 686 Hz. What is the speed of the wave?
(Points : 3)
170 m/s

340 m/s

686 m/s

1,370 m/s
@aaronq

Answer 1

@StudyGurl14 @KJ4UTS

Answer 2

@freckles @icecreamman @iambatman

Answer 3

relations between wavelength, velocity. period, frequency
\[\lambda=vT\]
\[T=1/f\]

Answer 4

We also can write
v=f*lamda
v=686*0.25=?

Answer 5

\[v=f \lambda\ \\ where\ v=velocity \\\ f=frequency\\ \lambda= wavelength\]
put in the values and get the answer :)