The speed of light in a vacuum is exactly 299,792,458 metres per second or 1,079,252,848.8 kilometres per hour. Converted to approximate imperial units, it is 186,282.397 miles per second, or 670,616,629.384 miles per hour.
2006-06-07 14:42:18
·
answer #1
·
answered by nighthawk_842003 6
·
0⤊
0⤋
the speed of light = 670 616 629 miles per hour
2006-06-07 21:42:58
·
answer #2
·
answered by vihlee 4
·
0⤊
0⤋
If memory serves me correctly, it is 186,000 miles per second. So, just imagine how far away that star is when they say it is at a distance of 100 light years! Thanks.
2006-06-07 21:45:04
·
answer #3
·
answered by Anonymous
·
0⤊
0⤋
186,282.397 miles per second
2006-06-07 21:42:49
·
answer #4
·
answered by lucygoon 4
·
0⤊
0⤋
186,000 miles per second
2006-06-07 21:42:31
·
answer #5
·
answered by el.tuco 5
·
0⤊
0⤋
186,000 miles per second.
2006-06-07 21:46:19
·
answer #6
·
answered by mischa 6
·
0⤊
0⤋
300,000 km per second
2006-06-08 13:09:03
·
answer #7
·
answered by amrita_dinakar 1
·
0⤊
0⤋
300,000 km per second
2006-06-07 21:42:30
·
answer #8
·
answered by Naomi w 2
·
0⤊
0⤋
1,389,600,000 MI per hr.
2006-06-07 21:46:09
·
answer #9
·
answered by Anonymous
·
0⤊
0⤋
186,282
2006-06-07 21:42:24
·
answer #10
·
answered by bullticky 5
·
0⤊
0⤋