Asked by Mamellow
The speed sound in air 330 m.s-1
Lightning flash is 1,5 km
1.calculate the time from the moment that you can see the lightning flash until you hear the thunder
Lightning flash is 1,5 km
1.calculate the time from the moment that you can see the lightning flash until you hear the thunder
Answers
Answered by
Mamellow
Can I have calculations
Answered by
Damon
Well, I will just assume C = infinite because 3*10^8 m/s is huge :)
So you see it when it happens for this purpose.
However it takes serious time for the sound to arrive.
1.5 *10^3 meters = 330 m/s * t
t = 1500/330 seconds
We primitive sea people use this to tell how far we are from a lighthouse that broadcasts a radio signal at the same time as their fog horn signal.
So you see it when it happens for this purpose.
However it takes serious time for the sound to arrive.
1.5 *10^3 meters = 330 m/s * t
t = 1500/330 seconds
We primitive sea people use this to tell how far we are from a lighthouse that broadcasts a radio signal at the same time as their fog horn signal.
Answered by
DrBob222
I use this the other way around. I see the flash and start counting. Every 5 seconds before I hear the thunder means the light is about another mile away
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