What is the time lapse between seeing lightening strike and hearing thunder if the flash is 4km away?
2006-10-04 11:44:38 · 3 answers · asked by bluedevilbabygirl 1 in Science & Mathematics ➔ Other - Science
You can do the calculation or use an estimate. The estimate I use is approximately five seconds per mile. If you want to know the time lapse more closely, use the information you provided. speed = distance per time. Re-arrange for time. time = distance per speed or rather distance/speed. 4000/(3*10^8) = time in seconds.
2006-10-04 12:01:27 · answer #1 · answered by Jack 7 · 0⤊ 0⤋
As you are close, once you see the lghtening start counting the seconds until you hear the thunder.
The velocity of sound is around 350 m/sec so if you count 6 seconds the distance to the flash is 2100 meters of 1.25 miles or so.
2006-10-04 12:07:28 · answer #2 · answered by Dr. J. 6 · 0⤊ 0⤋
4 km=4,000 meters. Divide 4,000 through 333 and also you get 12.01 seconds. For a distance of in elementary words 4,000 meters, you would possibly want to anticipate no delay on sighting the flash. So your answer might want to be 12. seconds. in case your instructors insist on "ridiculous" accuracy, divide 3x10(to the eighth skill) through 4,000. and also you get .0000133 2d delay on seeing the lightning.
2016-12-04 06:50:19 · answer #3 · answered by mallie 4 · 0⤊ 0⤋