If a baseball being thrown goes from zero to 30 m/s in 0.1 s, what is its average acceleration?
A) 3 m/s2
B) 30 m/s2
C) 300 m/s2
D) 3000 m/s2
E) none of the above
C
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Which of the following would NOT be considered a major manufacturing center of North America?
A) Megalopolis (Baltimore -Philadelphia-New York-Boston) B) the Rocky Mountain western interior C) southern California D) the Piedmont (including Birmingham, Atlanta and Charlotte) E) the Great Lakes region (including Cleveland, Detroit and Chicago)
?Suppose last night was clear and calm. Tonight’s forecast indicates that low clouds will be present. From this, you would conclude that tonight's minimum temperature will be
a. ?higher than last night's minimum temperature. b. ?lower than last night's minimum temperature. c. ?the same as last night's minimum temperature. d. ?above freezing. e. below freezing.
Equivalent map projection
What will be an ideal response?
In the United States, total deaths from lightning per decade have ________ since the 1940s.
A. been insignificant B. remained about the same C. been increasing steadily D. been decreasing steadily E. fluctuated widely