What is the approximate distance of a thunderstorm if you notice a three-second delay between the flash of lightning and the sound of the thunder?

1 Answer
MeneerNask
Apr 5, 2016

About 1 kilometer

Explanation:

Sound travels at about #330-340m//s# which means that in 3 seconds it will have travelled #~~1000m=1 km#.

The light of the flash travels at #300000km//s#, so you may say that it reaches you instantaneously.

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