What do the Symbols (r) and (m) Mean?

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Discussion Overview

The discussion revolves around the interpretation of symbols used in a physics context, specifically the symbols (r) and (m) with dots above them, as encountered in lecture notes intended for upper-level undergraduate students. Participants seek clarification on their meanings and the intended audience for the material.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions the intended audience of the book, asking if it is for high school students or undergraduates.
  • Another participant requests the exact URL and page number for the specific lecture being referenced.
  • A participant notes that the lecture notes are based on lectures for final year undergraduates, suggesting they are not suitable for typical high school students.
  • One participant claims that the symbol (r) with a dot above it represents the derivative of r with respect to time, indicating it is the velocity.

Areas of Agreement / Disagreement

Participants generally agree on the audience being upper-level undergraduates, but there is no consensus on the meanings of the symbols (r) and (m) with dots above them, as only one interpretation has been provided.

Contextual Notes

The discussion lacks detailed definitions or explanations for the symbol (m) with a dot above it, and the context of its use remains unclear. There are also no mathematical steps provided to support the claims made.

neutrino'
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First of all, for what audience is the book intended for? I mean for high school students or undergrads?

2nd. I encountered a symbole (r) with a dot above it and also (m) with a dot too? what do these symoles mean??

thx
 
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Huh? Which book?
 
the lectures from his site!
 
Can't you please give us the exact URL for the exact lecture and the exact page of what you are asking?
 
It says right on the webpage:
The notes are based on lectures given to final year undergraduates during the fall of 2004 and 2005.​

It's meant as a text for upper level undergrads, not high school students. (At least not the typical high school student.)
 
The r with a dot means the derivative of r with respect to time, which is the velocity.
 
thx doc!
 

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