2006-06-21 15:01:13 · 5 answers · asked by saidabear 1 in Science & Mathematics ➔ Astronomy & Space
Exactly 299,792,458 meters per second (m/s). I say exactly because at one point the official length of a meter was modified slightly to make c come out to a even number of meters per second, rather than having some annoying decimal places.
Still, most people prefer to round up to 300,000,000 m/s.
2006-06-21 15:07:37 · answer #1 · answered by stork5100 4 · 0⤊ 0⤋
3 x 10^8 m/s
that is the accepted measurement though the actually speed is slightly less than that
2006-06-21 22:04:42 · answer #2 · answered by dacihak 3 · 0⤊ 0⤋
About 297,600 kilometers per second.
2006-06-21 22:05:55 · answer #3 · answered by Albannach 6 · 0⤊ 0⤋
300,000 km per second.
2006-06-27 17:18:31 · answer #4 · answered by get_with_the _programme 1 · 0⤊ 0⤋
186,000 miles per second
2006-06-21 22:04:20 · answer #5 · answered by jan rei 2 · 0⤊ 1⤋