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Quiz

1.
Why is the first term in equation (2) zero?

\begin{displaymath}
 \begin{split}
 &\int_{-\infty}^{\infty}M(x)\frac{\partial^2...
 ...left(\frac{\partial M(x)}{\partial
 x}\right)^2\,dx \end{split}\end{displaymath}

2.
Equation (8)

\begin{displaymath}
 x = \sqrt{-\frac{g}{2a}}\ln\left(\frac{M_0-M}{M+M_0}\right)\end{displaymath}

is sensible only for -g/2a>0. Why are we sure that this condition is satisfied?


© 1997 Boris Veytsman and Michael Kotelyanskii
Thu Oct 16 20:58:44 EDT 1997