swervo22 swervo22
  • 01-01-2019
  • Physics
contestada

What is the speed of a periodic wave with a frequency of 4.5 Hz and a wavelength of 0.9m?

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remotecontrolbrain
remotecontrolbrain remotecontrolbrain
  • 01-01-2019

Answer:

4.05 m/s

Explanation:

Frequency f and wavelength lambda are related to each other through the propagation speed v as shown below. That allows us to caclulate the speed when f and lambda are known:

[tex]f = \frac{v}{\lambda}\implies v = f\lambda=4.5\frac{1}{s}0.9m=4.05\frac{m}{s}[/tex]

The speed of the wave is 4.05 m/s.


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