Which of the following is the speed of light?
A) 3.0 x 10^8 cm/sec
B) 3.0 x 10^8 m/sec
C) 3.0 x 10^8 mi/sec
D) 3.0 x 10^8 mi/hour
B
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This city typically has the worst pollution in the United States: ________
Fill in the blank(s) with the appropriate word(s).
In the reaction Pb(s) + 2 Ag+(aq) ? Pb2+(aq) + 2 Ag(s) which species is reducing agent?
A) Pb(s) B) Ag+(aq) C) Pb2+(aq) D) Ag(s)
Due to friction, the wind at the surface tends to:
a. Blow along the isobars from high to low pressure. b. Converge into low-pressure regions and diverge out of high-pressure regions. c. Blow along the isobars from low to high pressure. d. Converge into high-pressure regions and diverge out of low-pressure regions.
Which of the following physical properties would be LEAST useful in identifying quartz?
a. hardness b. luster c. color d. cleavage (or the lack of)