Two charges separated by 1 m exert a 1-N force on each other. If the magnitude of each charge is doubled, the force on each charge is
A) 1 N.
B) 2 N.
C) 4 N.
D) 8 N.
E) none of the above
C
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Calm winds associated with a weak pressure gradient and the vertical ascent of air in the ITCZ are known as
A) Hadley cells. B) the doldrums C) westerlies. D) the horse latitudes.
The orientation of a coastline affects the appearance of a shoreline primarily because it influences
A. the erosive effects of waves. B. which way river sediment enters the shoreline system. C. how much sun it receives. D. the direction of prevailing winds.
Deoxyribonucleic acid (DNA) contains billions of atoms and is very large. It would be considered a(n):
A. Isotope B. Element C. Mega-atom D. Compound E. Enzyme
The two types of sediment load transported by wind are ____________________ and
____________________ load Fill in the blank(s) with the appropriate word(s).