What is the time lapse between seeing a lightening strike?

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What is the time lapse between seeing a lightening strike?

& hearing the thunder if the lightening flash is 53 km away? The speed of lightwaves in air is 3 x 10^8 m/s & the speed of sound waves in air is 333 m/s. Ans in s.

2006-12-05 12:48:10 · 2 answers · asked by Dee 4 in Science & Mathematics ➔ Physics

2 answers

time taken for light to travel to you is 53000/3x10^8 = 1.76 x 10^-4 s
time taken for sound to travel to you = 53000/333 = 159 s

time elapse = 159 - 1.76x10^-4 = 159s

2006-12-05 12:57:00 · answer #1 · answered by random people 2 · 0⤊ 0⤋

15.915 or rounded to 16 secs

2006-12-05 13:11:55 · answer #2 · answered by PeterZen 2 · 0⤊ 0⤋