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OpenStudy (anonymous):

2 photons travel in opposite directions, what is the speed of one photon relative to the other in a vacuum?

OpenStudy (anonymous):

you are right, that is fun

OpenStudy (anonymous):

sure is quiet in here.

OpenStudy (anonymous):

and not a single answer yet

OpenStudy (anonymous):

c /thread

OpenStudy (anonymous):

@algebraic! sound travels poorly in a vaccuum

OpenStudy (anonymous):

correction, sound doesnt travel in a vacuum

OpenStudy (anonymous):

C is right, I think... also interesting to think of the apparent speed of one photon from the perspective of the other

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