Physics, 04.02.2020 11:56 mathisfun568

How long would it take a radio wave whose frequency is 7.25 x 10^5 hz to travel from mars to earth if the distance between the two planets is approximately 8.00 x 10^7 km? the wavelength is not given.

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How long would it take a radio wave whose frequency is 7.25 x 10^5 hz to travel from mars to earth i...