2006-10-13 10:25:53 · 19 answers · asked by Martial Arts Freak 2 in Science & Mathematics ➔ Mathematics
300 000 kilometers a second
2006-10-13 10:28:00 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The distance between Earth and Sun is 150 000 000 000 km.
Now imagine the time for a Sun ray to reach Earth. This time is
8,2 minutes. So, this Sun ray go to Earth at 300 000km/sec(speed of light).
Speed of light = distance/ time
2006-10-13 11:14:35 · answer #2 · answered by frank 7 · 0⤊ 0⤋
3 X 10^8 m/s
2006-10-13 10:31:08 · answer #3 · answered by de bizzle 2 · 0⤊ 0⤋
In metric units, c is exactly 299,792,458 metres per second.
In imperial units, the speed of light is exactly at 186,282.397 miles per second, or 670,616,629.384 miles per hour, or almost one foot per nanosecond
1,000 Nanoseconds = 1 millisecond which equals 1/100 of a second
C- Latin word celeritas meaning "swiftness". The physical Constant- C
An excellent source which has many different sources and links inside the definition
http://en.wikipedia.org/wiki/Speed_of_light
2006-10-13 10:33:26 · answer #4 · answered by thekirksmaester 1 · 0⤊ 0⤋
the speed of light = 299 792 458 m / s
2006-10-13 10:27:42 · answer #5 · answered by ChristianNanny 3 · 0⤊ 0⤋
OK
which is faster
the speed of light
or the
speed of dark
2006-10-13 10:29:16 · answer #6 · answered by Anonymous · 0⤊ 0⤋
in a vacuum the speed of light is approximatly
3x10^8 meters/second
or
6.7x10^8 miles/hour
2006-10-13 10:29:59 · answer #7 · answered by WxEtte 5 · 1⤊ 0⤋
The speed of light is a constant denoted by the letter c for constant or the Latin word celeritas meaning "swiftness".
In metric units, c is exactly 299,792,458 metres per second (1,079,252,848.8 km/h).
2006-10-13 10:29:03 · answer #8 · answered by HaLa 3 · 0⤊ 0⤋
3 x 10 to the 8th meters per second. all electromagnetic waves are at this speed
2006-10-13 10:47:34 · answer #9 · answered by Diggler AKA The Cab Driver 1 · 0⤊ 0⤋
It depends on the frame of reference in which you look for its speed.
In its own frame, the speed of light is infinite whereas in any other frame of reference it is a constant equal to 299792458 m/s^2.
2006-10-13 10:38:32 · answer #10 · answered by Hemant 2 · 0⤊ 0⤋