In a thunderstorm, lightning and thunder occur nearly
Chapter 16, Problem 16.15(choose chapter or problem)
In a thunderstorm, lightning and thunder occur nearly simultaneously. The light waves from the lightning travel at a speed of vlight 3.0 108 m/s, whereas the sound waves from the thunder travel at vsound 343 m/s. There is a rule of thumb for estimating how far away a storm is. After you see a lightning flash, count the seconds until you hear the thunder; divide the number of seconds by five to get the approximate distance (in miles) to the storm. In this rule, which of the two speeds plays a role? (a) Both vsound and vlight (b) Only vsound (c) Only vlight R
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