9 .
, .
. , (. 9). ( ) , . pi , , . pa + pgHn: pgH = pa + pgHn.
, , , , .
, , , .
10 : 1-; 2-.
. . 10. 1, , , , . , . . . = () , . , 2.
, , . .
= + |
, .
. , :
= |
11 U - .
U- (. 11) . , , . , .
12 : 1-; 2-
(. 12.). 1 2 . ( ), , . p = p1 2 , L. a , , , = pgL × sina.
|
|
, .
. . 13.
13 .
r , r - . , , :
= rgh1 = pB + rgh2 + rgh2 |
, h2 h1 = h,
pB = (r r)gh |
, .