Page 1640 - College Physics For AP Courses
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1628 Answer Key
21
in the direction 23
(a) , below the horizontal.
(b) No
25
(a) 0.263 N
(b) If the charges are distributed over some area, there will be a concentration of charge along the side closest to the
oppositely charged object. This effect will increase the net force.
27
The separation decreased by a factor of 5.
31
32
(a) 3.2
(b) If the distance increases by 3.2, then the force will decrease by a factor of 10 ; if the distance decreases by 3.2,
then the force will increase by a factor of 10. Either way, the force changes by a factor of 10.
34
(a) C
(b) This charge is approximately 1 nC, which is consistent with the magnitude of charge typical for static electricity
37
39
a. 0.859 m beyond negative charge on line connecting two charges
b. 0.109 m from lesser charge on line connecting two charges
42
N 44
(a)
(b)
46
(a)
(b)
52
(a)
(b)the coulomb force is extraordinarily stronger than gravity
54
(a)
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