SESSION 2017 PCPH003

EPREUVE SPECIFIQUE - FILIERE PC ____________________

PHYSIQUE

Mercredi 3 mai : 8 h - 12 h

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N.B. : le candidat attachera la plus grande importance à la clarté, à la précision et à la concision de la rédaction. Si un candidat est amené à repérer ce qui peut lui sembler être une erreur d’énoncé, il le signalera sur sa copie et devra poursuivre sa composition en expliquant les raisons des initiatives qu’il a été amené à prendre.

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η

η

π

⋅= ⋅ +

⋅ ⋅

ρη

( )= = ( )= =

( ) ( )= ⋅

( )Σ

( )( )η= ⋅ ⋅Σ ⋅

( )ρ ρ η∂

⋅ + ⋅ ⋅ = − + ⋅∆∂

( ) η ⋅ ∆

θ

+

( )Σ + −

( )Σ

η θ

= ⋅ ⋅ ⋅ ⋅ ⋅ ⋅

θ

( ) ( )= − − ⋅ ( )( ) ( )

η

−= ⋅ −

⋅ ⋅

η

π

⋅ ⋅=

⋅

α= ⋅ α <<

α

( ) ( )ρ ρ ρ= + ( ) ( ) ( )= +

ρ ( )ρ ( )

( )ρ ρ>> ( )>> ( )ρ ( ) ( )

( ) ( ) ( )= +

( )∂

= ⋅ ∂ ∂

∂

≈ ⋅

ρχ

ρ

∂ = ⋅ ∂

ρ

χρ

≈ ⋅

ρ

∂ ∂⋅ = −

∂ ∂

+ ( ) ⋅

+

ρρ ρ

∂ ∂ ∂⋅ ⋅ + ⋅ + ⋅ =

∂ ∂ ∂

( )

χ∂ ∂

+ ⋅ = −∂ ∂

( )

ρ χ

ρ=

⋅

ℜ

⋅−

= ⋅⋅

−

ℜ

= ⋅

θ

θ

θ

θ ∆ = −

θ

ℜ

+ → + +

→ → → →

=+

−= ⋅ ⋅

επ

−= ⋅⋅ ⋅

−= ⋅

−= ⋅

−= ⋅ ⋅

( )( )

−= ⋅

−

ηϕ

α = ≈

ρ

ν⋅ = −

α

λ

βδ γ

λδ λγ λβ λαδγβα

θ

θ

= ⋅

( )θ =

ε

π= ⋅ = ⋅

⋅

∈= ⋅ −≈ ⋅

= − ε

θ

θ

λ

= ⋅ −

=

αλ =

=

µ =+

− ≈ − ⋅ ⋅

−

α α

α

λ λ

λ

−λα α

λα α

( )

•

= ⋅

= − ⋅

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