Light travels through vacuum at a constant speed is _____ m/s. * 1 point 3 x 10⁸ 3 x 10⁵ 3 x 10⁴ 3 x 10⁶
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Answer:
299792458 m/s.
Explanation:
Since 1983, the metre has been defined in the International System of Units (SI) as the distance light travels in vacuum in 1⁄299792458 of a second. This definition fixes the speed of light in vacuum at exactly 299792458 m/s.
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