What is the equation or math formula for the speed of light?
2007-09-19 12:14:23 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
There is no formula, its not a calculation like the gravitational constant.
The speed of light is precisely defined as being exactly
299,792,458 metres per second.
2007-09-19 12:46:57 · answer #1 · answered by Anonymous · 0⤊ 2⤋
The formula for speed is distance divided by time. You let a beam of light go a certain distance (like to a mirror and back) and measure how long it took for the trip. Then you just divide.
v=d/t
2007-09-19 23:52:24 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The closest thing to an equation for the speed of light is
c = 1 / sqrt( ε0 x μ0 )
ε0 is the permittivity of free space
μ0 is the magnetic permeability of free space
ε0 = 8.854187817 x 10^-12 F/m
μ0 = 4 pi x 10^-7 H/m
The trick, of course, is that the value of ε0 is defined to make
c = 299,792,458 m/s, exactly.
2007-09-19 22:25:31 · answer #3 · answered by morningfoxnorth 6 · 1⤊ 0⤋
There is no single formula *for* the speed of light...it's a constant. The speed of light is used in many formulas though...like e = m*c^2
2007-09-19 19:47:07 · answer #4 · answered by Chug-a-Lug 7 · 0⤊ 2⤋
All aspects of pyshics have a formula. Some are more advanced others.
Newton, Isaac - Einstein, Albert - Trinder, Kevin John
"Gracitational Constant" (G T):
GT = 6.6741921959969401686147.*10-11
Eeinstein, Albert and Trinder, Kevin John
Constants (Gt), (Et) and (ET):
Gt = 6.6680118561094412201327.*10-11
Et = 1.86463923050949686250452.*10-26
ET = 1.86636749741435463426108.*10-26
2007-09-19 19:29:15 · answer #5 · answered by RUDOLPH M 4 · 0⤊ 1⤋
It's not an equation or formula, it's a defined value, which is 299,792,458 meters per second, or 186,282.397 miles per second, in a vacuum.
2007-09-19 19:20:06 · answer #6 · answered by cyswxman 7 · 2⤊ 0⤋
c=300,000 km/s
To simple? See the source.
2007-09-19 19:20:31 · answer #7 · answered by campbelp2002 7 · 0⤊ 2⤋