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Help please do tomarrow I circled them

Help please do tomarrow I circled them-example-1

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The equation for frequency:

Frequency = (wave speed) / (wavelength)

Units of frequency: "per second", or "Hertz"


Wavelength equation:

Wavelength = (wave speed) / (frequency)

Wavelength is just a length. The unit is 'meters'.
(or centimeters, or millimeters, or nanometers, if the frequency is very high)
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