Question

What is the speed, in m/s, of a wave on a cord if it has a wavelength of 3.5 m and a period of 0.5 s?

Answer 1

The wavelength, period and velocity are related by the equation:

`v=(\lambda)/(T)`

where λ is the wavelength and T is the period. In this case the wavelength is 3.5 m and the period is 0.5 s; plugging these values we have:

`\begin{gathered} v=(3.5)/(0.5) \\ v=7 \end{gathered}`

Therefore, the speed of the wave is 7 m/s