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25 April, 21:16

How many nanoseconds does it take light to travel 3.50 ft in vacuum?

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  1. 26 April, 00:40
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    light speed in vacuum = 3.8 * 10^8

    Distance (Given) = 3.5 ft

    now, time = distance/speed = 3.50 / 3.8 * 10^8 = 9.21 * 10^-9 s = 9.21 nanoseconds

    So, your answer is 9.21 nano-seconds ...
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