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  • 23-04-2019
  • Biology
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A wave has a wavelength of 7 mm and a frequency of 13 hertz. What is its speed?

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ShyzaSling
ShyzaSling ShyzaSling
  • 24-04-2019

Answer:

0.091 m/s

Explanation:

Given in the question that,

wavelength of a wave = 7mm

frequency of a wave = 13 hertz

Formula to use

f = v / λ

here f = frequency in hertz

        v = velocity in m/s

        λ = wavelength in m

1 mm = 1x10[tex]^{-3}[/tex]

7mm = 7x10[tex]^{-3}[/tex]

Plug values in the formula

 13 = v / 7x10[tex]^{-3}[/tex]

  v =   13(7x10^{-3})

  v = 0.091 m/s

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