The process of obtaining energy by splitting a large nucleus is called
a. nucleogenesis.
b. fusion.
c. bombardment.
d. fission.
d
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If the position of an electron (m = 9.11 × 10^?31 kg) could be measured to within 10?30 m, the uncertainty in the magnitude of its speed could be as much as
a. 6 × 10^?34 m/s. b. 6 × 10^25 m/s. c. 6 × 10^30 m/s. d. 1031 m/s. e. 1061 m/s.
In state n = 1, the energy of the hydrogen atom is -13.58 eV. What is its energy in state n = 2?
A) -13.58 eV B) -6.79 eV C) -4.53 eV D) -3.40 eV E) -1.51 eV
A magnifying glass uses a converging lens with a refractive power of 20 diopters. What is the magnification if the image is to be viewed by a relaxed eye with a near point of 25 cm?
A) 5.0 B) 3.0 C) 4.0 D) 1.0 E) 2.0
A typical automobile consumes about 70 kW of power from the gas tank. How many 100-watt light bulbs could this light up, if the energy were used to light electric bulbs rather than to run the car?
A) 7 bulbs B) 700 bulbs C) 7000 bulbs D) 70 bulbs E) This question cannot be answered without knowing the amount of time the car is being driven at this power.