Diving in your swimming pool, you let out a stream of bubbles. As they rise towards the top do they increase in diameter, decrease in diameter, or stay the same size?
A. increase
B. decrease
C. stay the same
A. increase
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We find from Gauss's law that the flux through a closed surface
A. is proportional to the net charge enclosed. B. is inversely proportional to the net charge enclosed. C. is proportional to the square root of the charge enclosed. D. is zero. E. is less the larger the closed surface.
A sprinter runs 100.0 m. If he travels at constant acceleration of 1.95 
for the first 75.0 m and then at constant velocity for the remaining distance, what was his total elapsed time for the whole race?
A. 11.3 s B. 9.8 s C. 10.1 s D. 10.2 s
Exploitation of a resource only occasionally leads to greater development
What will be an ideal response?
What law of thermodynamics specifies a direction of time?
a. The zeroth law. b. The first law. c. The second law. d. The third law. e. The zeroth law together with the first law.