=0+ρg(z0-z)= 0+ ρgh, . , : [**] /(ρg)+ z = 0/(ρg) + z0 =const.
, z, (); 0 z0, (); ρ (/3); z (). (/(ρg)+ z) (). [**] : 0 ρgh . []
1 , : , .
[**] : 1. ρ = const . . 2. = const z0. [].
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, . , , . 2: RT = ρ*g*V, R = ρ*g*V, , V . . , 2- , , , ρ, . RT = ρ*g*V . , ρ < ρ. : , , .