1
= sin3wt. ?
.
;
.
, .
2
N2 w0 = 4,05×1014 -1. m. k , .
, . w0 = 40,45. 1014 -1. : m = 14 /. m0 = m/NA = 14/6,023.1023 = 2,32.10-26 (NA ). , F = kx, w0 2 = k/m0. k = m0 w0 2 = 2,32.10-26. 20.1028 = 4,04.103 /.
3
m :
. , , .
, .
, n .
; 
; 
- .
; 
= m.
v = 0.
; 
, 
.
4
, : 1 = 3 sin wt 2 = 4 cos wt.
.
= 1 + 2. 1 :
1 = 3 sin wt = 3 cos(wt - p/2).
900. F d: = F cos (wt - d).
; 
.
5
14 (1 = 1,6×10-19 ). 1010. .
,
, D .
; D = 1,4×10-18 .
6
l = 0,58 . 4,7 10-2 4,7 10-4 (0). ( -)?
, w - () , Dw - :
; 
;
, l = 0,58 = 5800 .
, 
.
7
3 , : 1 = 3 sin wt; 2 = 4 coswt; 3 = 5cos(wt + j), j = -arctg(3/4).
|
|
|
= 1 + 2
; 
.
.
.
8
0. , . L 0. m0 - .
; 
.
, 
-
L -.
; 
;
; 
1) ( ):
; 
,
2) ( ):
9
α . l .
g1 .
(g1)2 = 2 + g2 + 2g sin α
ω2 = g1 /l
10
4.10-3 , 0,1 . , 0,05 , .
i = Imaxsin (wt) e = L i1(t) = L Imaxw cos (wt) . sin (wt) , i Imax, cos (wt)= 31/2/2. w2 = LC, . = Ce2/2 = 1,5.10-5 .
11
= 1,2 L = 6 . R = 0,5 . , UM = 10 ?
.
b
Q = w/(2b) = 
, b = R/L,
D
Q/2p = E/DE, dE = 2p/Q.
, E = C 
/2
() d D. ε. 1 .
.
l, . : q = ρl q, ρ . r
.
:
.
(l = 1 )
.
. ΔV:
.
, I, . , r
|
|
|
.
r dr l.
.
.
l
.
. . , , .
