In a circuit powered by a battery, charge
A) flows through the battery.
B) is energized by the battery.
C) both of these
D) neither of these
Answer: C
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Elements that are in the same ________ have a tendency to have very similar chemical properties due to periodic trends
A) group B) period C) textbook D) compound E) row
Which of the speeds v listed below is the lowest speed where the probability of a gas molecule having that speed is negligible compared to that for v = vp (“negligible” meaning less than 1/100 of its value at v = vp ).
A. v ? 0.2 vp B. v = 2 vp C. v = 3 vp D. v = 5 vp
If a nucleus decays by gamma decay to a daughter nucleus, which of the following statements about this decay are correct? (There may be more than one correct choice.)
A) The daughter nucleus has more protons than the original nucleus. B) The daughter nucleus has more neutrons than the original nucleus. C) The daughter nucleus has the same number of nucleons as the original nucleus. D) The daughter nucleus has fewer protons than the original nucleus. E) The daughter nucleus has fewer neutrons than the original nucleus.
Addition by 1. Components: Three forces, 
1, 
2, and 
3, all act on an object, as shown in the figure. The magnitudes of the forces are: F1 = 80.0 N, F2 = 60.0 N, and F3 = 40.0 N. The resultant force acting on the object is given by 
A. 180 N at an angle of 60.0° with respect to +x-axis. B. 60.0 N at an angle of 90.0° with respect to +x-axis. C. 20.0 N at an angle of 34.3° with respect to +x-axis. D. 35.5 N at an angle of 34.3° with respect to +x-axis. E. 40.0 N at an angle of 60.0° with respect to +x-axis.