A parallel-plate capacitor has dimensions 4.0 cm × 5.0 cm. The plates are separated by a 1.0-mm thickness of paper (dielectric constant k = 3.7). What is the charge that can be stored on this capacitor, when connected to a 6.0-V battery? (e0 = 8.85 × 10^-12 C2/N×m2)
a. 4.8 × 10^-9 C
c. 9.8 × 10^-11 C
b. 4.8 × 10^-11 C
d. 3.9 × 10^-10 C
D
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A. exactly 180 degrees. B. less than 180 degrees. C. more than 180 degrees.
Which planet is moving most slowly around the Sun?
A) Venus B) Jupiter C) Earth D) They are all moving with the same speed around the Sun.
A vertical tube one meter long is open at the top. It is filled with 75 cm of water. If the velocity of sound is 344 m/s, what will the fundamental resonant frequency be (in Hz)?
a. 3.4 b. 172 c. 344 d. 1.7 e. 688
In a fission reaction, such as occurs in a nuclear power plant,
A) thermal energy and other forms of energy are converted to nuclear energy. B) nuclear energy is converted to thermal energy and other forms of energy. C) heat is converted to work. D) nuclear energy is created. E) energy is created.