What Does 'me' Represent in This Physics Formula?

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    Formula Physics
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Discussion Overview

The discussion revolves around the interpretation of the variable 'me' in the formula (me^4 / 8e0^2 h^2) x 1/n^2, with a focus on its components and their meanings in a physics context. Participants explore the formula's elements, including constants and variables related to electron properties.

Discussion Character

  • Technical explanation, Conceptual clarification

Main Points Raised

  • One participant questions the meaning of 'me' in the formula, clarifying that it is not m with a subscript but rather 'me' in lowercase.
  • Another participant suggests that 'me' represents the product of electron mass (m) and the charge of the electron (e) raised to the fourth power.
  • A participant proposes substituting the fine structure constant (α) into the formula, indicating a relationship with other physical constants.
  • There is a correction regarding the notation of 'h', with a suggestion that it should be 'hbar' instead.
  • A later reply acknowledges the notation issue with 'hbar', indicating a technical limitation in typing.

Areas of Agreement / Disagreement

Participants express differing interpretations of 'me', with some proposing it as a product of constants while others focus on its notation. The discussion includes corrections and clarifications but does not reach a consensus on the interpretation of 'me'.

Contextual Notes

There are unresolved aspects regarding the notation and definitions of constants, particularly the distinction between 'h' and 'hbar'.

musraupp@mac.
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For some unknown reason, my 6 kilogram physics textbook doesn't explain the formula:

(me^4 / 8e0^2 h^2 ) x 1/ n^2

Where n is the state number.
Im just wondering what the me is, it is not m(subscript e) but just me both lowercase, e0 is greek epsilon subscript zero.. Could someone help me out, thanks
 
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it's m times e^4, where m is electron mass and e is electron charge.
 
thankyou!
 
Substitute α = e2/4 pi ε0 h c

where α = 1/137 = fine structure constant

Bob S
 
Bob S said:
Substitute α = e2/4 pi ε0 h c

where α = 1/137 = fine structure constant

Bob S

h should be hbar in here.
 
You're right. My hbar key isn't working. It would be nice to have hbar in the copy and paste thread:https://www.physicsforums.com/blog.php?b=347
Bob S
 
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