A floating leaf oscillates up and down two complete cycles each second as a water wave passes by. What is the wave's frequency?
A) 0.5 Hz
B) 1 Hz
C) 2 Hz
D) 3 Hz
E) 6 Hz
C
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Runoff of pesticides from lawns, fields, golf courses, and other areas is considered to be one of the most important sources of toxic organic pollution of water.
Answer the following statement true (T) or false (F)
The highest wind speed observed with an anemometer was 231 mph at Mt. Washington, NH on 12 April 1934. Plot 231 in New Hampshire on Figure 4. What will be an ideal response?
What are the elements in the "B" columns of the period table called?
A) main group elements B) inner transition elements C) metalloids D) transition elements
Compressional tectonic forces may result in the formation of:
a. normal faults. b. anticlines and synclines. c. horsts and grabens. d. strike-slip faults. e. tilted fault blocks.