Mathematics, 19.08.2019 22:30 hopp
The speed of light is 3.0*10^8 m/s. red light has a wavelength of 7 *10^-7 m. what is its frequency?
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The speed of light is 3.0*10^8 m/s. red light has a wavelength of 7 *10^-7 m. what is its frequency?...
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