If theta is the angle of inclination of a slope and W is the weight of a particle resting on the slope, the downslope component of the weight acting parallel to the slope would be expressed as:
a. W sin theta
b. W cos theta
c. W tan theta
d. none of the above
a
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What will happen to the proportion of females to males(i.e., number of females / number of males) as the baby boomer population ages from 1985-2035? Hint: refer to Figure 2.12.
A. increase B. decrease C. stay the same D. impossible to calculate from available data
Which of the following statements describes an important principle in the electrification of a cumulonimbus cloud?
A. Raindrops are always positively charged. B. Supercooled water is always negatively charged. C. Ice crystals are always negatively charged. D. Positive ions transfer from a warm object to a cold object.
Understanding the basics of global climate change effects, the findings of this research on shifting biomes is most likely to predict ________
A) temperate deciduous forests moving south B) boreal forests shifting north to tundra regions C) deserts shrinking globally D) boreal forests shifting south E) tundra regions shifting north to polar ice caps
Earth formed shortly after the Big Bang.
Answer the following statement true (T) or false (F)