2007-02-24 14:50:08 · 3 answers · asked by Connie L 1 in Science & Mathematics ➔ Chemistry
Well just take the distance divided by the speed of light and speed of sound (assuming you mean at sea level). The speed of light is about 299,792,458 m/s and speed of sound is about 340.29 m/s. So when you do the math you get 0.0000013 seconds for the the time elapsed for seeing it happen and 1.18 seconds for the time elapsed for hearing it happen. This is more of a physics rather than chemistry question.
2007-02-24 15:04:39 · answer #1 · answered by billybob 2 · 0⤊ 1⤋
Light travels at 3x10^8 m/s, so you will see an event that happens 400 m from you in 400/(3x10^8) seconds.
Sound is much slower, it travels at about 340 m/s in normal temperature air at sea level, so you will hear the event in 400/340 seconds.
2007-02-24 15:00:08 · answer #2 · answered by Dennis H 4 · 1⤊ 1⤋
This is Physics, not chemistry.
Time = distance/speed
For sound, speed = 340 m/s so t is just over a second, work it out
For light speed = 3 x 10^8 m/s so t is very small. work it out.
Take difference, which is just over one second, work it out
2007-02-24 15:02:12 · answer #3 · answered by hello 6 · 1⤊ 1⤋