Ngày tải lên :
10/10/2013, 18:35
...
( ) ( )
( )
V
rr
Q
V
9000
10. 58. 10 .86 ,8. 1.4
10.13
4
212
8
210
+
=
+
=
( )
( )
C
rr
Qr
q
C
rr
rQ
q
8
8
21
2
2
8
8
21
1
1
10.5
85
5.10.13
;10 .8
85
8. 10.13.
=
+
=
+
=
=
+
=
+
=
...
)m/V(10 .87 ,8
)10.9.(10 .86 ,8. 4
10 .8
)CM(4
q
E
4
2212
8
2
0
1
C
1
===
)m/V(10.50,5
)10.7.(10 .86 ,8. 4
10.3
)CN(4
q
E
4
2212
8
2
0
2
C
2
===
Vậy:
)/(10.34,923,0.10.50,5.10 .87 ,8. 2)10.50,5()10 .87 ,8(
4442424
mVE
C
=+=
... )
C10.1,29,36sin.12,0.10.9,4.10 .86 ,8. 1 4q
80
2
412
=
Giả sử q > 0
( )
C10.1,2q
8
=
. Khi đó:
( ) ( )
RxR4
x.q
Rx4
q
R4
q
VVV
000
12111
=
+=+=
V
1
( )
V21300
10.11.10.10 .86 ,8. 1 4
12,0.10.1,2
2212
8
=
...