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10-11-2017
Physics

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PLEASE HELP! 7TH GRADE SCIENCE!
In what ways are sound waves and electromagnetic waves different? (3 points)

They travel at different speeds.
Electromagnetic waves have frequency but not wavelength.
Sound waves have frequency but not wavelength.
Sound waves have wavelength but not frequency.

Respuesta :

10-11-2017

They travel at different speeds

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