When a chocolate bar is cut in half, its density of each half is
A) halved.
B) unchanged.
C) doubled.
Answer: B
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a. appear dark in color with few impact craters. b. appear dark in color with many impact craters. c. appear very bright because fresh ice is very reflective. d. generally show long bright grooves and a modest number of impact craters. e. generally have small volcanoes that are active.
A hidden link that looks like body text until point to it, at which time it changes color is a(n) ______ link.
A. hot spot B. formatted C. image D. rollover
A confined gas has an average energy/molecule of 60. meV. If the pressure is tripled and the volume is reduced by a factor of 3, what now is the average energy?
A) 0.18 eV B) 0.10 eV C) 0.06 eV D) 0.02 eV E) 0.03 eV
Two metal spheres are made of the same material and have the same diameter, but one is solid and the other is hollow. If their temperature is increased by the same amount,
A) the solid sphere becomes denser and the hollow one less dense. B) the two spheres remain of equal size. C) the solid sphere becomes less dense and the hollow one denser. D) the solid sphere becomes bigger than the hollow one. E) the hollow sphere becomes bigger than the solid one.