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dz ≈ 0 ⇒ p1 = p2 =p3
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p1 = p2

⇒

F1 F2 = A1 A2

A2 F2 = F1 A1
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∂p ∂p ∂p = =0 ∴ = −γ ∂x ∂y ∂z dp = −γ dz
si γ= cte ∆p = γ∆z
p2

∫ dp = −γ ∫ dz
p1 z1

z2

⇒

p2 − p1 = γ ( z1 − z2 ) ∆p ⇒ h= γ

⇒

∆p = γ h

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p1 = p2 = p3 = p4 = p4 = p5 = p6 = γ h
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pB = pC

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pA = γ H

pero H...