 | |||
    |
___________________ d0 = = 10-2
= 2 = × 10-4 2
s = (/2).
, 
.
(F<F) F= .
ʳ n =3.
DF = .
| - | ||||||||||||
| 1 | D 1 | 2 | D 2 | 3 | D 3 | 4 | D 4 | |||||
| SD1= | SD2= | SD3= | SD4= | |||||||||
ij
³ F = e = D T × n ×10-5 =
³ F = e¢ = 
× n ×10-5 =
F = 
=
:
a) 
=
b) .................. = 2,1×105
:
a) 
=
b) n = 0,25...0,33
: ______________________________________________________________
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________
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_____ ______________ 20 .
2
: , ; .
________________________
(=1/3):
(. 1)
ij 
= = 
= =
2 = 
2
:
I.
d 1 = =
1 = =
2 = 2
II. ,
(0,9F) F = = H
|
|
|
F = = H
F = = H
F = = H
III. ( )
_____________________ (H/ ²)
______________________ (H/ ²)
______________________ (H/ ²)
: 
________ (H/ ²)
________ (H/ ²)
IV. ( )
Δl = l1 l0 =___________ =
=%
Δ = 1 =² = ²
³ 
=%
V.
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=
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:_______________________
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_____ ______________ 20 .
3
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| a | |||||
| b | |||||
| h | |||||
| A | 2 |
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| s | |||
| , | F T | ||
| sT | |||
| h 1 | |||
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³ 
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| 䳿 | a |
|
___________ ()
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_____ ______________ 20 .
5
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: .
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_____ ______________ 20 .
9
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20
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в Ҳ Ͳ ί в, ²
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