Consider the situation shown below. Object A is a metal sphere with zero net charge, and objects B and C are particles with charges q and -q, respectively. Point P is at the sphere’s center. Answer each question below by choosing one of the arrows to the right of the picture or by choosing answer E. (If you are using the letters on the back cover to display your answer, you can indicate the double-letter choices by pointing to a letter with two fingers.) Which arrow best indicates the direction of the electric field at point P created by particle B?
A. A
B. B
C. C
D. D
E. Zero
F. AA
G. BB
H. CC
I. DD
B. B
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Two objects collide on a frictionless surface. If one had been at rest before the collision, is it possible for:
(i) one object to be at rest after the collision? (ii) both objects to be at rest after the collision?
1.(i) only 2.(ii) only 3.both (i) and (ii) 4.neither (i) nor (ii)