12.
12.1. . . t = 3 /.
12.2. φ t. , .
12.3. : , ; m .
1) J3 < J2 < J1 2) J3 < J1 < J2 3) J1 < J2 < J3 4) J3 < J1 = J2
12.4. Wp , . , , Fx x?
12.5. , h =0.5 . , , ( /).
13.
13.1. . , . . .
13.2. R = 1 , - , - . .
13.3. , , . ?
13.4. W . , ?
13.5. m 1 = 20 m 2 = 5 , L = 4 , . , α = 140.
14.
14.1.
3 |
1 |
0 |
2 |
1 |
2 |
|
|
14. 2. Z , , . ?
14.3. , , . , t 0 = 0 .
14.4. , p 1, ∆t = 0,1 F = 30 H p 2 ( ). p1.
14.5. (1) (2), , . h 1/ h 2, , .