Talk:PlanetPhysics/Velocity of Wave

Original TeX Content from PlanetPhysics Archive

%%% This file is part of PlanetPhysics snapshot of 2011-09-01 %%% Primary Title: velocity of wave %%% Primary Category Code: 40. %%% Filename: VelocityOfWave.tex %%% Version: 2 %%% Owner: pahio %%% Author(s): pahio %%% PlanetPhysics is released under the GNU Free Documentation License. %%% You should have received a file called fdl.txt along with this file. %%% If not, please write to gnu@gnu.org. \documentclass[12pt]{article} \pagestyle{empty} \setlength{\paperwidth}{8.5in} \setlength{\paperheight}{11in}

\setlength{\topmargin}{0.00in} \setlength{\headsep}{0.00in} \setlength{\headheight}{0.00in} \setlength{\evensidemargin}{0.00in} \setlength{\oddsidemargin}{0.00in} \setlength{\textwidth}{6.5in} \setlength{\textheight}{9.00in} \setlength{\voffset}{0.00in} \setlength{\hoffset}{0.00in} \setlength{\marginparwidth}{0.00in} \setlength{\marginparsep}{0.00in} \setlength{\parindent}{0.00in} \setlength{\parskip}{0.15in}

\usepackage{html}

% this is the default PlanetPhysics preamble. as your knowledge % of TeX increases, you will probably want to edit this, but % it should be fine as is for beginners.

% almost certainly you want these \usepackage{amssymb} \usepackage{amsmath} \usepackage{amsfonts}

% used for TeXing text within eps files %\usepackage{psfrag} % need this for including graphics (\includegraphics) %\usepackage{graphicx} % for neatly defining theorems and propositions %\usepackage{amsthm} % making logically defined graphics %\usepackage{xypic}

% there are many more packages, add them here as you need them

% define commands here

\begin{document}

The {\em monochromatic \htmladdnormallink{wave}{http://planetphysics.us/encyclopedia/CosmologicalConstant2.html}} is the fundamental model of the wave \htmladdnormallink{motion}{http://planetphysics.us/encyclopedia/CosmologicalConstant.html}.\, The vibration in every point along the way of wave motion is harmonic and has the same period time $T$ and the frequency \,$f = \frac{1}{T}$.\, The {\em wave length} $\lambda$ of the wave motion is the displacement which the wave propagates in a period time with its \htmladdnormallink{velocity}{http://planetphysics.us/encyclopedia/Velocity.html} $v$:

$$\lambda = vT = v/f$$ Thus the \htmladdnormallink{formula}{http://planetphysics.us/encyclopedia/Formula.html} $$v = f\lambda$$ is valid for the wave motion.

\end{document}