,
:
: W ─ , / (/);
S ─ , ();
t ─ , , ().
1 2:
. : S = 215 ; t = 16 . 30. : W = 780 /.
: S = 1500 ; t = 10 . : W = 540 /.
. , , 1 
, /.
: S = W t
1 2:
. : W = 710 /; t = 7 . 15 . : S = 86 .
: W = 340 /; t = 40 . : S = 3800 .
. , ; .
3) : 
1 2:
. : S = 246 ; W = 590 /. : t = 25 .
: S = 2000 ; W = 480 /. : t = 15.
. , ; .
:
V─ , /; W─ , /; U─ , /;
─ .; ─ (= δ - ), .;
─ (=+||), .
3 5:
. : V = 620 /; δ= 152; U = 120 /; = 120.
: = 32; = +6; W = 720 /.
: 
V─ , /; ∆V ─ (∆V=|W-V|), /;
─ , .; ─ , .
3, 4 5:
. : V = 400 /; = 315; = -5; W = 350 /.
: α = -35; U = 61 /; 
=165.
1. 12000 .
7, 8 9:
. : t0 = -15; t = - 45; H = 7600 . : t0+t = -60; H = 7000 .
2. 12000 .
. : t0 = +5; t = - 65; H = 16000 . : t0+t = -60
.
= - 11000 = -380 .
.
|
|
|
' = 15800 .
,
H = 15800 + (-380) = 15420 .
