A 8.0-?F uncharged capacitor is connected in series with a 6.0-k? resistor, an ideal 20-V dc source, and an open switch. If the switch is closed at time t = 0.0 s, what is the charge on the capacitor at t = 9.0 ms?
A) 0 C
B) 37% of the minimum charge
C) 68% of the minimum charge
D) 96% of the maximum charge
E) 17% of the maximum charge
E
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A 3.0-?F capacitor charged to 40 V and a 5.0-?F capacitor charged to 18 V are connected to each other, with the positive plate of each connected to the negative plate of the other. What is the final charge on the 3.0-?F capacitor?
A. 11 ?C B. 15 ?C C. 19 ?C D. 26 ?C E. 79 ?C
Put the following events into the correct order in which they are thought to have occurred according to the impact hypotethesis.
A person claims to have been abducted by aliens and subjected to painful medical procedures that left scarring. However, he refuses to allow interested scientists to study his scars. This is an example of
A) hypothesis-driven science B) discovery science C) nonscience D) pseudoscience