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Today at 4:42 PM
Physics

Answered

how fast does light travel per sec

Answer :

Today at 4:47 PM

The speed of light ..., and all other electromagnetic waves ... is

299,792,458 meters per second

when they're traveling through vacuum.

It's somewhat less when they're traveling through any kind of material stuff.
The exact speed is different for every material ... air, water, glass, diamond,
jello, etc.

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