After a pie is removed from an oven, the pie filling is hotter than the crust due to
A. high conductivity of apples.
B. uneven temperatures.
C. water in the filling that better retains thermal energy.
D. none of the above
Answer: C
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Why might a high-formula-mass alcohol be insoluble in water?
A. In order for two substance to be soluble in each other, their molecules need to be of comparable mass. B. The bulk of a high-formula-mass alcohol likely consists of nonpolar hydrocarbons. C. A high-formula-mass alcohol would be too attracted to itself to be soluble in water. D. Such an alcohol would likely be in a solid phase.
Which is a factor that decreases rock strength along faults?
A) age B) weight of glaciers C) flowing water D) sedimentation
Consider a metal ring with a gap cut in it. When the ring is heated, the gap
A) becomes narrower. B) becomes wider. C) retains its size.
The measurement used to specify wavelengths is called the
A) micrometer. B) macrometer. C) nanometer. D) decameter.