:
1. ( ), ;
2. , ;
3. (, , .) . () . (, ), - . , , ;
4. (). , ;
5. ( , ., , (, ) ). . ;
6. ;
7. ;
8. ;
9. ( ), , , , ;
10. , :. , .
( ):
1. , :
- (), ;
- ( ),
- ; ;
- .
2. :
- 5 ;
- 5 () ;
- 5 ;
- 5 () .
.
(l = 0.60 ) b = 0.04 . (f = 40 ), . .
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, , , . , , () .
, , , . ( ).
. , ( ). , , , j (j - ). . , , , (. .)
(1)
, , , , , , .
, . Z Db . Db , , j , .. . , .
di - , i - , . , , Db , , Z . DbO z . z .
,
d - , , . .
lim z ai =A0,
A0 - , , .
0, . 0 , , j = 0.
. c di, . , , , L = A0, 0 - 0 (.). d. j -, .
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d D . ,
= j /2 = r sin(d/2)
r = L/d. j = 0
, I Aj2, :
Á = Á0 sin2 (d/2)/ (d/2)2, (2)
Á0 A02 - .
(2), Á = 0, sin(d/2)= 0
. d/2 = mp, m = I, 2, 3, , d = 2mp.
(1) :
b sinj = ml (3)
. tg d/2 = d/2. , , ..
b sinj = (2 + 1)l/2 (4)
.
= 0 , j = 0, .. . , , j :
= f tgj (5)
1- 2- j (3) (m1 = 1 m2 = 2)
, sinj = tgj. (5) 1- 2-
1 = 6 2 = 12 .
(5) (4) = 1
sinj/1 = 3l / (2b) x/1 = 9
, (2). (4) = 1 (1) d = 3p, (. (2))
Á1 / Á0 = 4 / (9p2) 0,045.
: 1 = 6 2 = 12 . Á1 / Á0 0,045