The air in this room has
A) mass.
B) weight.
C) energy.
D) all of the above
E) none of the above
Answer: D
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Dielectrics: A parallel-plate capacitor consists of two parallel, square plates having dimensions 1.0 cm by 1.0 cm. The plates are separated by 1.0 mm, and the space between them is filled with Teflon, which has a dielectric constant of 2.1. What is the capacitance of this capacitor? (?0 = 8.85 × 10-12 C2/N ? m2)
A. 1.9 pF B. 0.44 pF C. 2.1 pF D. 0.88 pF
A point charge Q1 = +6.0 nC is at the point (0.30 m, 0.00 m); a charge Q2 = -1.0 nC is at (0.00 m, 0.10 m),
and a charge Q3 = +5.0 nC is at (0.00 m, 0.00 m). What are the magnitude and direction of the net force exerted on the +5.0-nC charge by the other two charges? (k = 1/4??0 = 9.0 × 109 N ? m2/C2 )
Most of the state of Nevada is in the Basin and Range Province. The predominant active fault for this region is
A) thrust faulting. B) reverse faulting. C) normal faulting. D) none of the above
An automobile engine operates with an overall efficiency of 12%. How much energy is delivered as waste heat (in gallons of gasoline) for each 10 gallons of fuel burned?
A. 1.2 B. 8.8 C. 6.5 D. 4.7 E. 7.5