Energy of Electron at 0.1c: Consider Relativity Effects?

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Homework Help Overview

The discussion revolves around calculating the energy of an electron moving at 0.1 times the speed of light (0.1c) and the considerations regarding when to apply relativistic effects in such calculations.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the energy required for an electron to reach 0.1c and question whether 2-3 keV is an appropriate estimate. There are mentions of comparing relativistic and non-relativistic approaches to the problem.

Discussion Status

The conversation includes attempts to clarify the problem and the necessary calculations. Some participants express frustration over the lack of detailed work shown by the original poster, while others suggest that both relativistic and non-relativistic methods should be explored to understand the differences in results.

Contextual Notes

There is an indication that participants are expected to show their work and adhere to forum guidelines, which may influence the depth of discussion and the types of responses provided.

enricfemi
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a electron with speed at 0.1c, what is it energy in the unit of ev.

and when should we consider the relativity effects for the electron?

thx
 
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We do not spoon feed homework. Show your work.

That template you deleted when you posted is designed to elicit some effort from you towards solving the problem.

You've been here long enough to know that...
 
that is my effort, cherk the nb of mathematica
 

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:rolleyes:
Merely by responding, I am actually putting more effort into this thread than you are.

And, since not all of us run Mathematica, I can't help you with that either.

Thread reported for non-adherence to guidelines.
 
it is only need 2-3 kev for electron to reach 0.1c!
is it right?
 
enricfemi said:
it is only need 2-3 kev for electron to reach 0.1c!
is it right?

Yes, is right. Now show your work next time in a way anyone can read. It's probably not bad practice to try and do it both relativistically and nonrelativistically to see the difference.
 
Dick said:
Yes, is right. Now show your work next time in a way anyone can read. It's probably not bad practice to try and do it both relativistically and nonrelativistically to see the difference.

ok,thx
 

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