Question

If a longitudinal wave passes a specific point seven times per second, and the distance between wave rarefaction points is 2 meters, what is the speed of the wave?

Answer 1

Answer: 14 m/s

Step-by-step explanation:

The speed
`S` of a sound wave is given by the following equation:

`S=\lambda f`

Where:

`\lambda=2 m` is the wavelength of the sound wave

`f=7 times/s=7 Hz`

`S=(2 m)(7 Hz)`

Hence:

`S=14 m/s`