2006-08-13 01:23:44 · 15 answers · asked by noazark40 1 in Science & Mathematics ➔ Astronomy & Space
186,282.397 miles per second, or 670,616,629.384 miles per hour
2006-08-13 01:27:22 · answer #1 · answered by graywolfman 3 · 0⤊ 0⤋
The speed of light is 186,000 miles per second.
2006-08-13 08:29:15 · answer #2 · answered by jnkotler 1 · 0⤊ 0⤋
The speed of light is commonly known as 300,000,000 meters per second but heres a more accurate answer:
P.S: 300,000,000 meters/second = 186,000 miles per second, so you did think well!
The speed of light in a vacuum is an important physical constant denoted by the letter c for constant or the Latin word celeritas meaning "swiftness". Through any transparent or translucent material medium like glass or air, light travels more slowly than c, its speed in a vacuum; the ratio of c to this slower speed is called the refractive index of the medium.
In metric units, c is exactly 299,792,458 metres per second (or 1,079,252,848.8 km/h). Note that this speed is a definition, not a measurement, since the fundamental SI unit of length, the metre, has been defined since October 21, 1983 in terms of the speed of light - one metre is the distance light travels in a vacuum in 1/299,792,458 of a second. Converted to imperial units, the speed of light is approximately 186,282.397 miles per second, or 670,616,629.384 miles per hour.
Hope this helped =)
2006-08-13 08:26:15 · answer #3 · answered by Anonymous · 2⤊ 0⤋
You are correct..
186,000 miles per second in a vacuum....
Light has been slowed down in the laboratory to just a few
feet per second but this has no practical use at this time...
2006-08-13 10:36:36 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Possibly
2006-08-13 08:34:24 · answer #5 · answered by Anonymous · 0⤊ 0⤋
3 x 10 (to the power of 8) meter per second.
2006-08-13 08:31:21 · answer #6 · answered by ET 3 · 0⤊ 0⤋
this is a relative question,if we are in static, the speed of light is about 300000km/s; but if we are in motion, the value might be change. For example, if we achieve the speed of light, the speed of light is equal to zero
2006-08-13 11:17:21 · answer #7 · answered by wormcaterpillar 1 · 0⤊ 0⤋
no one really knows because in order to know the speed of light miles per second you need to break the speed of lights....gravity... and velocity...and miles 00.1 per second... which no genius person in Earth could solve it...if you ever do you'll be somewhere else...i don't think you'll survive if you ever do break it...
2006-08-13 08:40:48 · answer #8 · answered by toolboxkeeper 1 · 0⤊ 0⤋
In a vacuum, you are correct. However, when light passes through water, it bends and also slows down.
2006-08-14 16:54:00 · answer #9 · answered by what_m_i_doing 2 · 0⤊ 0⤋
300000000 mile per second
2006-08-13 08:29:34 · answer #10 · answered by Murtaza 6 · 0⤊ 0⤋