If a proton with mass 1.67 × 10^-27 kg moves in an accelerator such that its total energy is two times its rest energy, what is its speed? (c = 3.00 × 10^8 m/s)
a. 1.00 × 10^8 m/s
c. 1.41 × 10^8 m/s
b. 2.83 × 10^8 m/s
d. 2.60 × 10^8 m/s
D
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One mole of an ideal gas has a temperature of 25°C. If the volume is held constant and the pressure is doubled, the final temperature (in °C) will be
a. 174 b. 596 c. 50 d. 323 e. 25
As a copper wire is heated, its length increases by 0.200%. What is the change of the temperature of the wire? (aCu = 16.6 × 10^-6/C°)
a. 120°C c. 30.1°C b. 60.2°C d. 6.0°C
Silver has a Fermi level of 5.5 eV. At 0 K, what is the speed of the electrons with the Fermi speed?
A) 1.4 × 106 m/s B) 1100 m/s C) 2200 m/s D) 0 E) 1.1 × 106 m/s
What do we mean when we say that the terrestrial worlds underwent differentiation?
A) When their interiors were molten, denser materials sank toward their centers and lighter materials rose toward their surfaces. B) The five terrestrial worlds all started similarly but ended up looking quite different. C) Their surfaces show a variety of different geological features resulting from different geological processes. D) They lost interior heat to outer space.