-->
>> . . 10 .
2. -
- . . . , = 10-3 r /, , r .
() .
ρ V: m = ρV.
. .
. , .
m1 = ρ1V; m2 = ρ2V, ρ1 = = 1000 /3 , ρ2 = 13 600 /m3 . 1 = 18 10-3 /; 2 = 0,2006 /. ,
2,5 , .
d . ρ = 900 /3.
. d .
V ≈ d3N,
V , N .
(2.2.7)
.
. ρ = 1,93 104/3 , = 0,197 / .
, :