Any object moving in a circular path is
A. under the influence of a force.
B. accelerating.
C. both of these
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.
Sometimes the same word can have different meanings. In the United States the word billion means "a thousand million" but in Britain the word billion means "a million million." Which of the following corresponds to the "British Billion"?
A) 1 x 10^-9 B) 1 x 10^-6 C) 1 x 10^9 D) 1 x 10^12
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What will be an ideal response?
Of the three mechanisms of heat transfer, which is the only one that does not operate in the interior of Earth?
A) Convection B) Radiation C) Conduction