2007-07-29 20:07:32 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Physics
The speed of light in a vacuum is exactly 299 792 458 m/s (fixed by definition). Although this quantity is sometimes referred to as the "velocity of light", the word velocity refers to a vector quantity, which has a direction (and speed refers to the magnitude of the velocity vector).
2007-07-29 20:10:13 · answer #1 · answered by Majdi B 3 · 0⤊ 0⤋
You can circle the circumfrence of the earth 9 times a second at the speed of light !
Ohh and for the answer above it is very possible to travel faster then light there have been many experiments now that prove it is possible for a wave to go faster then light in a vacuum !
2007-07-30 03:18:52 · answer #2 · answered by the_red_emperor 2 · 0⤊ 0⤋
Everyone gave you the math but here is the short answer.
The speed of light is how fast light travels in a vacuum such as space. It is a constant and does not vary and in theory nothing in the universe can move faster than light.
2007-07-30 03:13:12 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It's about 186000 miles per second, or 300,000,000 meters per second.
Due to bizarre relativistic effects, you can never reach or exceed this speed. Also, no matter how fast you're going, light will always seem to be traveling away from you at the same speed.
2007-07-30 03:09:49 · answer #4 · answered by lithiumdeuteride 7 · 0⤊ 0⤋
The speed of light is the velocity of the photons which the light is composed of wich is 186000 miles per second or 300000 killometers a second.
2007-07-30 03:15:27 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Question asked by mill times.
Theory of Relativity.
A car traveling is the time it is slowed than the counterpart of another car stoped. Stoped is the time moving faster than traveling. -Einstein.
300,000km/sec. -Proof
Line of Paralax from Jupitor's moon Io, speed of light is 300,005.9999km/sec
Esitmation 300,000km/sec
Math: 3*8^6=300000000
2007-07-30 03:09:45 · answer #6 · answered by Anonymous · 0⤊ 0⤋
3*10^8 m/s
2007-07-30 03:33:44 · answer #7 · answered by mastermind 1 · 0⤊ 0⤋
Slightly less than the speed of gossip.
Hope this helps,
Lorax
2007-07-30 03:31:19 · answer #8 · answered by Lorax 3 · 0⤊ 0⤋
http://www.google.com.au/search?q=the+speed+of+light&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
from the top of my head i remember its approximately 3*10^8 metres per second
2007-07-30 03:12:41 · answer #9 · answered by Anonymous · 0⤊ 0⤋
186,000 miles per second in a vacume
2007-07-30 03:34:15 · answer #10 · answered by G. P 1 · 0⤊ 0⤋