:
)Iw=w₁/w₀=5.5/4,8=1.15 ( )
Iw=w₁/w₀=7.0/6.7=1,045 ( )
)Iw= 
= 
=1,082
) : 4.8*500-5.5*500=-350
: 6.7*610-7*610=-183
: 6487-7020=-533
20.13
| , - | |
| , - | |
| , - | |
| - | |
| , . . | |
| , . . | 5512,5 |
| , . . | 5200,5 |
, . .
:
f= 
.
f.= 
.
f.= 
=3450,17 .
= 
.=F/F=5512.5/5200,5=1.06
K.=F/F.=6300/5512.5=1.14
a= 
b= 
f=f**.=13.21*7.5*1.06=105
f.=f*b*.=105*28,75*1.14=3441
20.18
| , . . | 3379.4 | |
| , - | ||
| , - |
:
)
) .
:
)₀= 
₁= 
f.= 
f=3379400/122=27700 .
f=3534000/124=28500 .
∆f=f₁-f₀=28500-27700=800 .
) ∆()=(₁-₀)*f₀=2*27700=55400()
∆(f)=(f₁-f₀)*CC₁=800*124=99200
20.16
: 104,5%, 99%, - 108,9%, 102,5%, 104,8%.
.
:
= 1,045
= 0,99
= 1,089
= 1,025
= 1,048
= 
= 
= 
= 1,073
= 
= 1,089*1,045*1,048 = 1,193
19.22
| , - | , % | ||
| 105,5 | |||
| 108,8 |
:
)
) ,
) , :
|
|
|
- 1 - 500 .,
- 2 620 .
:
A) Iw = 
= 
= 
= 1,071
) ∆T= 
- 
=14600-15637,3= -1037,3
∆q= 
=
∆ 
∆ 
19.24
2 .
| 1 | 2 | |||
| , | , - | , | , - | |
:
) .
) ( )
