Which of the following terms refers to the slowing of the wind due to the random motion of air molecules?
A. molecular viscosity
B. eddy viscosity
C. mechanical turbulence
D. convective turbulence
Answer: A
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When action is a boy pulling on a spring, reaction is the
A. boy's tug on the spring. B. spring pulling on the boy. C. friction between the floor and the boy's feet. D. cannot be estimated.
He epicenter of an earthquake is the ________.
a.) point where the minimum ground shaking is recorded b.) point of most intense, structural damage associated with ground shaking c.) point where the fault cracking initiates d.) surface location directly above the point where the fault slip initiates
Cold, dense air will have a ________ vertical pressure gradient than will warm, light air
Fill in the blank(s) with the appropriate word(s).
Which of the following is true regarding chemical energy?
A. is stored in chemical bonds B. comes from the flow of electrons C. is derived from the nucleus of atoms D. is the same as heat energy E. all of the answers listed here