
\font\bigsl=cmsl12
\font\bigbf=cmbx12

\def\solution#1{\centerline{\bigsl Ph103b: Solutions to Problem Set #1}\bigskip}
\long\def\origprob#1{{\parindent=20pt\parskip=0pt\def\smallskip{\relax}\ninepoint\sl#1\par}}
\long\def\prob#1#2{\eqNum=1\bigbreak\noindent{\bigbf Problem #1.}\origprob{#2}}
\long\def\finalprob#1#2{\bigbreak\noindent{\bigbf \##1)}\origprob{#2}}
\def\subpart#1){{\sl #1)~}}
\def\part#1){{\bf #1)~}}
\def\hbreak{\hfil\break}
\def\u#1{\,{\rm #1}}
\def\a{\alpha}
\def\Pr{{\rm Pr}}
\def\REd{\RE_{\d}}
\def\x{\times}
\def\Tm{T_{\rm melt}}
\def\ec{\epsilon_c}
\def\cP{{\cal P}}
\def\e#1{\cdot 10^{#1}}
\def\verythinback{\mskip-1.5mu}
\def\edot#1{\verythinback\cdot\verythinback\e{#1}}
\def\DT{\Delta T}
\def\Ftot{F_{\rm tot}}
\def\ep{\epsilon}
\def\mcar{m_{\rm car}}
\def\Fmu{F_\mu}
\def\hbc{\hbar c}
\def\d{\delta}
\def\Fform{F_{\rm form}}
\def\Fskin{F_{\rm skin}}
\def\and{\qquad\hbox{and}\qquad}
\def\help{{\bigbf ???}}
\def\cool{_{\rm cool}}
\def\k{\kappa}

% boxit in display math mode
\def\d{\delta}
\def\c{c_{\rm s}}
\def\ga{\gamma}
\def\g{\gm}
