1. 6,41010 . . ?
2. , q 2 q, . ? ?
3. , 210-8 ()?
4. (NaCl), 2,810-8 ?
5. 20 30 . 30 . ?
6. q 2q 10 . 7,210-4 . ?
7. 5,010-9 6,010-9 , 1210-4 ?
8. -210-8 -910-8 , 9,0 ? ?
9. 10 , 3 ?
10. 1 10 9 ?
11. Q1 = Q2 = 1 , r = 1 .
12. F . r = 0,51010 ; .
13. , 0,510-8 .
14. ?
15. r1. r2 ε, ?
16. 4 , ?
17. , 10 , 0,23 . .
18. , 6 0,4 .
19. F r 2 ≤ r ≤ 10 2 . q1 = 10 , q2 = 20 .
20. , , ?
21. , , ?
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22. , (ε = 1) 20 , . , ?
23. F , , r = 6·10-14 . 11 . .
24. , 2,6710-9 0,6710-9 , 4,0 . . .
25. 10 , 5,010-5 . , , , 4,010-5 . .
26. , 0,25 , , , 100 , 6,0 . ?
27. , 20 , . 10-7 , , , 60. .
28. 3,010-4 . ?
29. r = 60 . F1 70 . , F2 = 160 . Q1 Q2, . .
30. r = 30 . F1 90 . , F2 =160 . Q1 Q2, . .
31. Q 4Q l = 60 . , , , Q1 , . , , , , . Q = 1 . Q1 , ? ?
32. , q 4q, r . . , ?
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33. 10 16 7 . 2 , , 3 4 ?
34. 90 10 4 . , , , ?
35. 40 -10 10 . , , , ?
36. Q 4Q 60 . , ?
37. (q = 1,1 ) r =17 . , ?
38. , , 30 . , ? ?
39. +10,410-8 2,410-8 20 . , ?
40. Q1 =1 Q2 = Q1 10 . F, Q =0,1 , r1 =6 r2 =8 .
41. 100 50 10 . , 1 , 12 10 .
42. Q1 = 100 Q2 = 50 d = 10 . F, Q3 = 1 . r1 = 12 Q1 r2 = 10 Q2.
43. q1 = 100 q2 = 50 a = 10 . F, q3 = 1 , b = 12 c = 10 .
44. 25 , 24 , . 2 , , 15 , , , ? ?
45. 5,010-5 . , ?
46. +q, +q, +q, -q, -q, -q. , +q, .
47. , , . , : ) , , ; ) , .
48. m = 1 . Q , ? .
49. m = 0,1 l = 20 . , , α = 60. .
50. , , . , α = 60. β = 50. ε. .
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51. . α. ρ0 = 8102 /3. ε , . ρ = 1,6103 /3.
52. 1 10 . , 60 ?
53. 0,12 20 . , 30 ?
54. l Q1 = 180 Q2 = 720 60 . , , Q3 , . . ?
55. , . υ , r = 53 , n .
56. a = 10 Q, 2Q, 3Q, 4Q, 5Q, 6Q (Q =0,1 ). F, Q,
57. 20 10 . , .
58. Q = 0,3 . Q1 , ?
59. l = 20 τ = 10 /. a = 10 , , Q = 1 . F, .
60. 90. , τ = 1 /. F, Q = 0,1 , a = 50 .
61. l = 10 . τ = 1 /. = 20 Q = 100 . F .
62. 10 0,1 . 1 /, . .
63. , σ = 400 /2, , τ = 100 /. r = 10 Q = 10 . , , , , .
64. (σ = 10 /2). Q = 100 . F, .
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65. Q =25 , R = 1 , σ = 2 /2. , , r = 10 .
66. a = 5 Q = 1 . F, .
67. τ1 = 1 /. , τ2 = 10 /. F, . .
68. 5 20 /. , 40 , 10 .
69. Q = 1 . σ , F = 60 .
70. (τ1 = τ2 = τ =1/) . F .
71. . , 40 670 . 490 . .
72. ( ) , 4 , 2 /?
73. 98 /2. , 10 . , 45.
74. Q1 = 0,1 . , , , . Q2 = 10 . . F, , R 10 .