its a little bit quicker than your bike dude. lol
2006-08-12 20:56:04
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answer #1
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answered by Anonymous
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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. 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.
2006-08-12 20:51:11
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answer #2
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answered by old dude 5
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The speed of light: 299,792,458 meters per second.
2006-08-12 20:51:32
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answer #3
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answered by boukenger 4
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how fast it takes light to travel to the earth from the sun
2006-08-12 20:51:42
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answer #4
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answered by Anonymous
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3x10^8 m/s speed of light
2006-08-12 20:52:16
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answer #5
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answered by JOY_1984 2
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186,000 miles per second (approx)
2006-08-12 20:56:11
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answer #6
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answered by Anonymous
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186,282.397 miles per second
2006-08-12 20:53:16
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answer #7
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answered by Rick 2
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186,000 miles per second.
2006-08-12 20:55:47
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answer #8
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answered by TwilightWalker97 4
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286,000 miles per second, .or thereabouts
2006-08-12 20:53:30
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answer #9
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answered by Anonymous
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