2007-04-04 04:02:57 · 6 answers · asked by mathorator.. 1 in Science & Mathematics ➔ Physics
It is 3.0 x 10^8 m/s, or 300000000 m/s. In imperial units it is 186 000 miles a second.
2007-04-04 04:07:40 · answer #1 · answered by Rob K 2 · 1⤊ 0⤋
In the vacuum or in air
c= 310^8m/s
in a refractive medium of coefficient n
The speed v = c/n
ex water n = 4/3 the speed is 3 10^8/(4/3) =2.2510^8m/s
2007-04-04 11:10:13 · answer #2 · answered by maussy 7 · 0⤊ 0⤋
The speed of light is the speed of all motion in the universe.
2007-04-04 12:51:54 · answer #3 · answered by Fred 7 · 0⤊ 1⤋
it's as above, but the correct way is to use S.I units...so metres per second as opposed to any imperial units
the reason why we use S.I units, is so that the international scientific community all use the same units to avoid conversions..and not all countries work with imperial units no more
2007-04-04 11:12:05 · answer #4 · answered by town_cl0wn 4 · 0⤊ 0⤋
I've got 2.99792458*10^8 m/s, basically the same, just depends on how exact you need to be
2007-04-04 11:10:29 · answer #5 · answered by suprasteve 3 · 0⤊ 0⤋
186,000 miles/sec
2007-04-04 11:19:20 · answer #6 · answered by Jack 2 · 0⤊ 1⤋