I don`t even know if I wrote the qestion down right lol
2007-12-04 11:40:36 · 4 answers · asked by Jenny E 1 in Science & Mathematics ➔ Physics
A year is a unit of time...the speed of light is a velocity. Your question doesn't make sense.
Do you mean...How far can light travel in one year?
If so...light travel at 186,000 miles per second. Multiply this by the number of seconds in a year and you've got the number of miles.
Hint: 60 sec/min x 60 min/hour x 24 hr/day x 365 days/year will give you the number of seconds in a year (sec/yr). Multiply this by the velocity of light and you've got the answer.
2007-12-04 11:49:46 · answer #1 · answered by Wayner 7 · 0⤊ 0⤋
You would just ask "what is the speed of light?"
The speed of light is 300,000 kilometers per second, or 186,000 miles per second. (Figures approximate, but close enough for most purposes.)
That leads to a unit of measure of distance called a "light-year." The light year is a compound word like "man-hours" or "foot-pounds" made up of the two units in the measurement.
So a light-year means the distance light travels in a year, which is about 5.88 trillion miles (588,000,000,000,000 miles).
2007-12-04 19:46:43 · answer #2 · answered by aviophage 7 · 0⤊ 0⤋
One light year = 9.4605284 Ã 10 to the power of 15 meters
2007-12-04 19:46:27 · answer #3 · answered by Darkknight512 2 · 0⤊ 0⤋
The correct answer to your ill-formed question is: the same speed it had at the beginning of the year. C, the speed of light, is one of the invariants of nature.
2007-12-04 20:10:47 · answer #4 · answered by LucaPacioli1492 7 · 0⤊ 0⤋