Which of the following is not an abbreviation for a quark flavor?
A. u
B. s
C. b
D. t
E. r
E. r
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Three resistors of 12 ?, 12 ?, and 6.0 ? are connected together, and an ideal 12-V battery is connected across the combination
What is the current from the battery if they are connected (a) in series or (b) in parallel?
In Miller and Urey's experiment, what did they use to simulate the atmosphere in a sealed, glass container to produce amino acids and organic molecules?
a. volcanic ash b. electric arc c. water vapor d. liquid helium e. nitrogen gas
The moment of inertia of a solid cylinder about its axis is given by 0.5MR2. If this cylinder rolls without slipping, the ratio of its rotational kinetic energy to its translational kinetic energy is
A) 1:2 B) 1:3 C) 2:1 D) 1:1 E) 3:1
Which of the following are quanta of the electromagnetic field?
A) photons B) electrons C) Both of the above. D) quarks E) All of the above.