You toss a ball to your friend. When the ball reaches its maximum altitude, its velocity is
A) zero.
B) horizontal.
C) 9.8 m/s2.
D) vertical.
E) 9.8 m/s.
B
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What idea of Aristotle’s did Galileo discredit with his experiments on balls rolling on an incline?
The drawing below shows a sequence of Stern–Gerlach devices. By analogy to the cases discussed in the chapter, what do you think are the probabilities that an electron entering the last device will come out of that device’s plus and minus channels, respectively? 
A. 1 and 0, respectively (AA if reversed, i.e., 0 and 1)
B. 0.933 and 0.067, respectively (BB if reversed)
C. 
, respectively (CC if reversed)
D. 
for both channels
E. Some other probabilities (specify)
Three identical resistors are connected in series to a 12-V battery. What is the voltage across any one of the resistors?
A) 36 V B) 24 V C) 12 V D) 4 V E) zero
There is no obvious evidence for large-scale structure greater than about
A) 200 kpc. B) 600 kpc. C) 200 Mpc. D) 600 Mpc. E) 2000 Mpc.