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During a thunderstorm 3.4 s elapses between observing a lightning flash and hearing the resulting thunder Approximately how far away in kilometers and miles was the lightning flash?
Wiki User
∙ 14y ago
As speed of light >> speed of sound, we can safely assume that the time taken for light to reach the observer is negligeable.
Taking speed of sound to be 340 ms-1 The distance can be found out by the formula
Distance = Speed * Time
= 340 * 3.4
= 1156 m
Wiki User
∙ 14y ago
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