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OpenStudy (anonymous):

Electromagnetic waves differ from each other in frequency only wavelength only frequency and wavelength frequency, wavelength, and velocity

OpenStudy (gottennis121):

It's not A or B. What do you think? Velocity? Velocity is the speed of something in a given direction. Do waves have only a certain direction, or can they go different ways? Hope this helps. :)

OpenStudy (kohai):

Please close this and post it in physics

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