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Q&A

Posts tagged particle-physics

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Q&A In particle physics and string theory, what is mass?

We commonly say that something has a weight, which is synonymous with a mass. Things have a weight because the force of gravity is relative to something’s mass. Subatomically, what is mass? There ...

0 answers  ·  posted 4mo ago by Julius H.‭  ·  edited 4mo ago by Julius H.‭

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Q&A What is the uncertainty principle and how does it relate to the measurement of particles?

I'm trying to understand the uncertainty principle and its implications for particle measurement. From what I've read, it seems that the principle states that we cannot simultaneously know the exac...

0 answers  ·  posted 1y ago by Reinstate Monica on Stack Exchange‭

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Q&A Is that electron which jumps from one stationary state to another?

In classical physics book of kleppner, i read that An atom can "jump" from one stationary state a to a lower b by emitting radiation with $E_a-E_b$. The frequency of the emitted "package of radi...

1 answer  ·  posted 2y ago by deleted user  ·  last activity 2y ago by Olin Lathrop‭