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Title: Which of the following can travel at the speed of light in a vacuum? Post by: staedtler on Mar 16, 2017 Which of the following can travel at the speed of light in a vacuum?
A) Light, radio waves, X rays, and gamma rays B) Only light; all other electromagnetic waves travel slower than the speed of light. C) Light, atoms, X rays, and subatomic particles (e.g., electrons) D) Light, infrared, ultraviolet, and subatomic particles (e.g., electrons) Title: Re: Which of the following can travel at the speed of light in a vacuum? Post by: hyponotica on Mar 16, 2017 Content hidden
Title: Re: Which of the following can travel at the speed of light in a vacuum? Post by: staedtler on May 1, 2017 ;D Exactly what I needed
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