1. .
2. 6 .
3. 8 ( -2- 1/10) 10 ( -2 20), 2000 / (100). -2 .
5. -2, -2 9, 11, 12.
6. 4 .
7. 9 " " -2 " " ( "Ñ").
8. -2 (/) 9.
9. 8 - , - . 8 100/1000, 10/100, 1/10, - 30/300, 3/30. (/).
10. 7 .
11. 4 .7.2 .
,
1. .
2. 4 11 . 7.2.
1. , ( 480 4500 /). .7.4.
1. .
2. (.7.4) .7.4.
3. (. . 7.2) 7.9, 7.10 7.11 ( . ).
4. :
V = f(n).
. 7.4
| (n) , / | ||||||
| f = n/60, | 31,5 | |||||
| (V, /) | ||||||
| . | V, / | |||||
| , // ( .7.1) | ||||||
| , ( ) V L = 20 lg ¾¾¾ 5.10-8 | ||||||
| , ( ) V L = 20 lg ¾¾¾ 5.10-8 |
|
|
|
5. (DL) , :
. (7.14)
6. .7.2.
7. 12.1.012-90. .. 4, 5, 7.
| ) : D = 0,017 , d = 0,00175 , i = 5, G = 8 10* /; | ) : S = 5,3 10-4 2, = 0,03 , = 1 106 /2; |
| ) m1 = 0,714 ; | ) m2 = 0,372 . |
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10. , .
