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\begin{document}
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\fcolorbox{black}{gris}{Compte rendu d'oral~: PC*}\par\medskip

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Nom du candidat~: Vincent \textsc{Laurent}
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Date de l'épreuve~: 09/07/04
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École~: Mines-Ponts & & & & & \\
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Durée de préparation~: & 10~min & Durée de passage~: &  50~h & Équipe & 12 \\
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\noindent\textbf{Sujet}~:
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\item On considère une source émettant des ondes sphériques\\
$\left \{ \begin{array}{l} f = 500 \mbox{ Hz}\\ P= 10^{5} \mbox{
Pa} \\ P = 1 \mbox{ W}\\
\end{array} \right .$ Quelle est l'amplitude à 10 m ?

\item Démontrer $ \frac{P(M_{1})}{\rho} + g z_{1} +
\frac{v_{1}^{2}}{2} = \frac{P(M_{2})}{\rho} + g z_{2} +
\frac{v_{2}^{2}}{2} + \frac{(v_{1}-v_{2})^{2}}{2}$

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\smallskip\noindent\textbf{Question de cours}~: \\
"Machines thermiques"\\

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