\batchmode
%
\documentclass[10pt,letterpaper,oneside,onecolumn]{article}
\makeatletter
\usepackage[]{fontenc}
\usepackage[dvips]{epsfig}


\makeatletter












\makeatother


\pagestyle{plain}
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\setcounter{tocdepth}{3}

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\makeatother
\newenvironment{tex2html_wrap}{}{}
\newwrite\lthtmlwrite
\def\lthtmltypeout#1{{\let\protect\string\immediate\write\lthtmlwrite{#1}}}%
\newbox\sizebox
\begin{document}
\pagestyle{empty}
\setcounter{secnumdepth}{3}
\setcounter{tocdepth}{3}
{\newpage
\clearpage
\samepage \( \rho _{s} \)
}

{\newpage
\clearpage
\samepage \( \rho _{l} \)
}

{\newpage
\clearpage
\samepage \( u=\rho _{l}v \)
}

{\newpage
\clearpage
\samepage \( m,l,t \)
}

{\newpage
\clearpage
\samepage \( \Pi _{1}=\frac{\rho _{s}}{\rho _{l}} \)
}

{\newpage
\clearpage
\samepage \( \Pi _{2}=\frac{v^{2}}{gr} \)
}

{\newpage
\clearpage
\samepage \( \Pi _{3}=\frac{\rho _{l}Rv}{\mu } \)
}

{\newpage
\clearpage
\samepage \( \frac{v^{2}}{rg}=f(\frac{\rho _{l}Rv}{u},\frac{\rho _{s}}{\rho _{l}}) \)
}

{\newpage
\clearpage
\samepage \( g\propto u\Rightarrow  \)
}

{\newpage
\clearpage
\samepage \( gf_{g}(v,r,\rho )=uf(v,r,\rho ) \)
}

{\newpage
\clearpage
\samepage \( v=\frac{r^{2}g\rho _{l}}{u}\phi (\frac{\rho _{s}}{\rho _{l}}) \)
}

{\newpage
\clearpage
\samepage \( \phi =\frac{\rho _{s}}{\rho _{l}}-1 \)
}

{\newpage
\clearpage
\samepage \(>\)
}

{\newpage
\clearpage
\samepage \( \frac{v^{2}}{rg}=f(\frac{\rho _{s}}{\rho _{l}})=\Pi \frac{\rho _{s}-\rho _{l}}{\rho _{l}} \)
}

{\newpage
\clearpage
\samepage \( \Pi =\frac{8}{3C_{D}} \)
}

{\newpage
\clearpage
\samepage \( C_{d}=\frac{24}{Reynolds} \)
}

{\newpage
\clearpage
\samepage \( v=\sqrt{Rg\frac{\rho _{h}}{\rho _{air}}}=\sqrt{40*980*10^{3}}=200km/h \)
}

{\newpage
\clearpage
\samepage \( Re<<1 \)
}

{\newpage
\clearpage
\samepage \( v_{terminal}=\frac{2}{9}\frac{gr^{2}}{u}(\rho _{s}-\rho _{l})\rightarrow u=70g/cm/s \)
}


\end{document}
