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?

Question

asked Jul 15, 2020 214k views

1 Answer

Kotaro · Answer 1 · 2020-07-19T11:00:53+0000

Answer: 14 m/s

Step-by-step explanation:

The speed
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