Compared the Galilean satellites, the larger satellites of Saturn have ________ average density.
A. lower
B. higher
C. about the same (as the Galilean satellites)
Answer: A
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What can you infer about the lepton number of the anti-neutrino?
A. This quanton has lepton number = +1. B. This quanton has lepton number = -1. C. This quanton has lepton number = 0. D. One cannot determine this quanton’s lepton number from the processes we have studied.
A heat engine has an efficiency of 35.0% and receives 150 J of heat per cycle. (A) How much work does it do in each cycle? (B) How much heat does it "waste" in each cycle?
What will be an ideal response?
Absolute zero corresponds to a temperature of
A) 0 K. B) -273° C. C) both of these D) none of the above
A 0.14-kg baseball is dropped from rest from a height of 2.0 m above the ground. What is the magnitude of its momentum just before it hits the ground if we neglect air resistance?
A) 0.28 kg ? m/s B) 0.88 kg ? m/s C) 0.44 kg ? m/s D) 0.62 kg ? m/s E) 1.4 kg ? m/s