A 4.0-µF capacitor and an 8.0-µF capacitor are connected together. What is the equivalent capacitance of the combination if they are connected (a) in series or (b) in parallel?
What will be an ideal response?
(a) 2.7 µF (b) 12.0 µF
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For a fixed amount of gas, if the absolute temperature of the gas is doubled, what happens to the pressure of the gas?
A) The answer cannot be determined without volume information. B) The pressure of the gas becomes double the original pressure. C) The pressure of the gas becomes triple the original pressure. D) The pressure of the gas becomes one half the original pressure. E) The pressure of the gas becomes four times the original pressure.
If you had something the size of a sugar cube that was made of white dwarf matter, it would weigh
A) as much as a truck. B) about 5 pounds. C) as much as the entire Earth. D) as much as an average person.
The greatest inaccuracy in Copernicus's model of the solar system was that the planets
a. traveled in circular orbits with uniform motion. b. traveled on epicycles whose centers followed orbits around the Sun. c. traveled in elliptical orbits. d. were allowed to travel backwards in their orbits. e. orbited the Sun.
How can a star that has more mass than our sun be smaller than our sun?