The lunar escape velocity is ________ Earth's.
A. lower than
B. higher than
C. the same as
D. We have not measured the Moon's escape velocity.
Answer: A
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Which of the following radiations has the smallest frequency?
a. Infrared b. Visible c. Ultraviolet d. X-rays
Lillian safely touches a 100,000-volt Van de Graaff generator. Although the voltage is high, the relatively small amount of charge means a relatively small amount of
A) energy transfer. B) electric field. C) polarization. D) conduction.
Given that 1.00 in. = 2.54 cm, how many square centimeters are in 1.00 square inch?
A) 1.59 B) 2.54 C) 5.08 D) 6.45
What happens to the magnitude of the charge on each plate of a capacitor if the potential difference between the conductors is doubled?
1.It becomes four times larger. 2.It becomes two times larger. 3.It is unchanged. 4.It becomes one-half as large. 5.It becomes one-fourth as large.