The speed of radio waves is 297 600 km per second. How much time is needed for the ratio impulse to travel from a station to a radio if the distance between them is 1280 km? express the answer in scientific notation.
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2.7 seconds
Radio waves propagate in vacuum at the speed of light c, exactly 299,792,458 m/s. Propagation time to the Moon and back ranges from 2.4 to 2.7 seconds, with an average of 2.56 seconds (the average distance from Earth to the Moon is 384,400 km).
Explanation:
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