Just as "gravity" is the study of a wide range of gravitational interactions, "electricity" is the study of a wide range of
A) electrical charges.
B) electrical forces.
C) electrical interactions.
D) none of the above
Answer: C
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Conversion of Units: A plot of land contains 5.8 acres. How many square meters does it contain? (1.0 acre = 43,560 ft2 and 2.54 cm = 1.00 in.)
A. 2.3 × 104 m2 B. 7.1 × 103 m2 C. 7.0 × 104 m2 D. 5.0 × 104 m2
What is the temperature of a system in thermal equilibrium with another system made up of ice and water at one atmosphere of pressure?
a. 0°F b. 273 K c. 0 K d. 100°C
When the dew point is below 0°C, which of the following is likely to form?
a. Sleet b. Snow c. Hail d. Dew
Parallel light rays from a distant object strike the surface of a concave mirror. After reflecting from the mirror's surface, the rays will converge at
a. the mirror's focal point. b. a point beyond the mirror's focal point. c. a point nearer than the mirror's focal point. d. none of the above.