OpenStudy (anonymous):
Which places the items in order from fastest to slowest? A. the speed of light through outer space; the speed of light through air; the speed of light through glass B. the speed of light through glass; the speed of light through air; the speed of light through outer space C. the speed of light through glass; the speed of light through outer space; the speed of light through air D. the speed of light through air; the speed of light through glass; the speed of light through outer space
OpenStudy (matt101):
The denser your medium, the slower light travels through it. Outer space is basically a vacuum, so there's hardly anything to slow the speed of light. Air is composed of gas particles which slow the speed of light a bit, but still it's not too dense. Glass is a solid and is obviously much denser, and so slows the speed of light the most. A is your answer!
OpenStudy (anonymous):
A
OpenStudy (anonymous):
a
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