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A Couple Of Questions!

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Posted by Nicola/">Nicola on December 28, 1999 20:32:48 UTC

Hi all!

I am new to the forum, I have a couple of questions that are really Physics, but that I need to find an answer to.

I. Under what circumstances do photons change into an electron and positron pair.

II. If a particle has a rest mass of zero, what happens when it comes to rest?

I can't seem to find the answers to these anywhere...do we know them yet?

Thanks

Nicola

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