What are the 8 formulas I need to locate in my textbook?

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SUMMARY

This discussion focuses on identifying eight specific formulas related to wave dynamics, acoustics, and optics found in a textbook. The formulas include wave speed in terms of wavelength and frequency, angular frequency, acoustic harmonics for open and closed tubes, solutions to partial differential equations like Laplace's equation, reflection magnitude, and the thin lens equation. Participants emphasize the need for a comprehensive index of formulas in textbooks to facilitate easier location and reference.

PREREQUISITES
  • Understanding of wave dynamics and frequency relationships
  • Familiarity with acoustic harmonics and their applications
  • Knowledge of partial differential equations, specifically Laplace's equation
  • Basic principles of optics, particularly the thin lens equation
NEXT STEPS
  • Research wave dynamics and the relationship between wavelength and frequency
  • Study acoustic harmonics in open and closed tubes
  • Explore solutions to partial differential equations, focusing on Laplace's equation
  • Learn about the thin lens equation and its applications in optics
USEFUL FOR

Students and educators in physics, particularly those studying wave dynamics, acoustics, and optics, as well as anyone involved in developing educational resources for physics textbooks.

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4. [PLAIN]http://img176.imageshack.us/img176/7186/34581263.jpg
5. [PLAIN]http://img87.imageshack.us/img87/8069/16289518.jpg [/PLAIN]
6. [PLAIN]http://img291.imageshack.us/img291/5840/49412218.jpg [/PLAIN]
7. [PLAIN]http://img809.imageshack.us/img809/8945/20137696.jpg [/PLAIN]
8. [PLAIN]http://img99.imageshack.us/img99/7555/78954615.jpg
 
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What do you want to know? These are not equations with fancy names.
 
3 is from wave dynamics...I don't know if it has a name, but it describes the speed of a wave in terms of its wavelength and frequency or period.

5 relates angular frequency to ordinary frequency.

2 and 6 describes the acoustic harmonics of a tube...I think 2 describes an open tube, 6 a tube that is closed on one end.
 
2. and 6. do not need to be associated with acoustics, they are very general parts of solutions to that type of partial differential equation. 1 could arise in any number of ways, it looks like the solution to a PDE, like Laplace's equation. 4 and 5 are pretty self explanatory. 7 looks like it describes a reflection magnitude. 8 is a thin lens equation.
 
i'm just trying to locate them in the textbook, so basically i'd like to know which section they belong in

thanks for the help so far

It would be a good idea to have an index of formulas in textbooks
 

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