The temperature of a nice day is about
A) 25°C. B) 50°C. C) 0°C. D) 10°C. E) 70°C.
A
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The lunar maria are primarily composed of ________.
A. anorthosite B. olivine C. silicon dioxide D. basalt
When referring to the "cgs" system, what does the "c", the "g", and the "s" stand for?
What will be an ideal response?
When U.S. annual energy use and gross national product (GNP) are graphed, the two graphs rise at the same rate until the mid-east oil shocks of the 1970s, after which
A) GNP keeps rising while energy use levels off due to global warming. B) GNP keeps rising while energy use begins to level off due to increased energy efficiency. C) energy use decreases due to declining fossil fuel supplies. D) GNP levels off while energy use keeps rising due to technological stagnation. E) total energy use increases without a similar increase in GNP, because of increased oil imports.
Assume that all the circuit elements have the same resistance. (b) Which bulb is (or bulbs are) dimmest? (To indicate a pair of bulbs using the letters at the back of the book, point to two letters at the same time.)
A. Bulb A
B. Bulb B
C. Bulb C
D. All three bulbs are equally bright.