Imagine that we place a dipole a distance r from a neutral atom, as shown below. 
A. A
B. B
C. C
D. D
E. Zero
F. Other
G. AA
H. BB
I. CC
J. DD
A. A
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An 80-g particle moving with an initial speed of 50 m/s in the positive x direction strikes and sticks to a 60-g particle moving 50 m/s in the positive y direction. How much kinetic energy is lost in this collision?
A. 96 J B. 89 J C. 175 J D. 86 J E. 110 J
Features called "Tiger Stripes" are found on the surface of which Jovian moon?
A) Europa B) Ganymede C) Enceladus D) Triton
The maximum voltage of an ac signal is 8.0 V. What is the rms value of this voltage?
A) 2.8 V B) 5.7 V C) 6.2 V D) 4.0 V E) 16.0 V
Two identical particles, each with a mass of 2.0 ?g and a charge of 25 nC, are released simultaneously from rest when the two are 4.0 cm apart. What is the speed of either particle at the instant when the two are separated by 10 cm?
a. 7.3 m/s b. 9.8 m/s c. 9.2 m/s d. 6.5 m/s e. 4.6 m/s