1. 塀 犖 F 4 犖 2
40204 犖 犖 F 2
( 犖F )
犖 6 15
犖 2 F F 犖 F
F犖 F 犖 犖, , 犖 F
犖
1. F F F 犖 F
+ -
+ -
+ _ 2. + -
1. + -
+ -
+ -
+ -
+ -
+ -
+ A. B. -
3. + -
+ - F A 犖犖 F F B
+ -
F 犖 + -
犖. F 1, 2 3 . F 1, 3 . F 1, 2 . F 2, 3
2. F F
1). F 犖 F F
2). 犖 F
3). F F 犖 犖 F F 犖
F 犖
犖. F 1, 2 3 . F 1, 3 . F 1, 2 . F 2, 3
3. 8 x 10-13 kg 犖 F F
5 x 106 N/C 犖 F
-21 -20 -19
犖. 1.6 x 10 C . 1.6 x 10 C . 1.6 x 10 C . 1.6 x 10-18 C
4. 犖 9.1 x 10-31 kg 1.6 x 10-19 C F
9 x 10-10 N/C F 犖 m/s2
犖. 3.2 x 102 . 1.6 x 102 . 0.8 x 102 . 0.4 x 102
2. 5. 犖 犖 犖 4 x 10-3 N 犖 犖 犖 F 犖 5 cm 6 x 10-9 C F
犖 犖 F 犖 37 犖 F cot 37属 = 4/3
犖. 1.25 x 106 N/C . 1.2 x 106 N/C . 0.8 x 106 N/C . 0.5 x 106 N/C
6. F X F 犖 1.08 x 10-1 C 1.8 m 犖 N/C
犖. 3 x 108 N/C . 9 x 108 N/C . 2.7 x 109 N/C . 5.4 x 109 N/C
7. 犖 F 6. F 1.024 C F 犖 F X 4.8 m 犖犖
F F 1.08 x 10-1 C 犖 F X 犖 F F X
犖 N/C
犖. 0.4 x 109 N/C . 0.5 x 109 N/C . 0.9 x 109 N/C . 1.0 x 109 N/C
8. 犖 犖 8 cm 犖 10 cm 2 x 10-10 C 犖 F
犖 犖 犖 N/C
犖. 0 , 281 . 281 , 0 . 0 , 180 . 180 , 0
9. (E) 104 N/C 犖 0.04 g F
F 4 m/s2 犖 犖 F
犖. 犖 , 1.6 x 10-8 C . 犖 , 2.4 x 10-8 C . , 1.6 x 10-8 C . , 2.4 x 10-8 C
10. F F 犖 3 cm 104 N/C
F 犖 1 cm
犖. 0.11 x 104 N/C . 0.33 x 104 N/C . 3 x 104 N/C . 9 x 104 N/C
3. 塀 犖 F 4 ( 40204) 犖 2
犖F
犖 幣 6 犖 犖 F 2
犖F
F
1
2
3
4
5
6 犖
7
8
9
10