how fast is light in miles per hour
2007-05-29 06:46:15 · 7 answers · asked by dmwallin2002 1 in Science & Mathematics ➔ Physics
186,000 x 60 x 60 = 669,600,000 mph
2007-05-29 14:56:20 · answer #1 · answered by Norrie 7 · 0⤊ 0⤋
speed of light is 3*10^8m/s
1km is 0.6 of a mile. so 1000m is 0.6 of a mile.
so there are 1666.7m in 1 mile.
hence is we do (3*10^8)/1666.7 = 179996.4 miles per second.
so get miles per second to miles per hour we simply multiply by 3600 (there are 3600 seconds in an hour)
179996.4 * 3600 = 647987040.3 miles per hour.
hence the speed of light in mph is 647987040.3.
2007-05-29 13:55:54 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The previous answers are rounded off.
The precise speed of light (in a vacuum) is:
299,792,458 meters per second
Plug that into your conversion equation.
1 meter per second
equals 2.24 miles (statute) per hour
equals 1.94 nautical miles per hour.
Now all you need to do is decide whether you want your answer in statute miles or nautical miles.
When in doubt, give BOTH answers!
.
2007-05-29 14:06:12 · answer #3 · answered by Anonymous · 0⤊ 0⤋
186,282 miles per second is the speed of light in a vacuum.
(Relatively speaking).
2007-05-29 13:55:23 · answer #4 · answered by Philip H 7 · 0⤊ 0⤋
I believe it's 186,000 miles per second
2007-05-29 14:20:19 · answer #5 · answered by techbankguy 4 · 0⤊ 1⤋
3x10^8 m/s * (3600s / hr) * (1km / 1000m) * (.62miles / 1km)
i don't have a calculator right now. Sorry!
2007-05-29 13:52:21 · answer #6 · answered by 7 · 1⤊ 0⤋
671,080,887.61 mph
2007-05-29 14:38:12 · answer #7 · answered by Anonymous · 0⤊ 0⤋