On the average, in a ferromagnetic domain permanent atomic magnetic moments are aligned ____ to one another.
A. antiparallel
B. parallel
C. perpendicular
D. alternately parallel and antiparallel
E. randomly relative
Answer: B
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An object is moving with constant velocity in a straight line. Which of the following statements is true?
A) A constant force is being applied in the direction of motion. B) A constant force is being applied in the direction opposite of motion. C) There are no forces acting on the object. D) The net force on the object is zero. E) There is no frictional force acting on the object.
A string is stretched and fixed at both ends, 200 cm apart. If the density of the string is 0.015 g/cm, and its tension is 600 N, what is the wavelength (in cm) of the first harmonic?
A. 600 B. 400 C. 800 D. 1000 E. 200
A capacitor consisting of two parallel plates separated by 2.0 cm has a potential of 40 V on the top plate and a potential of 0 V on the bottom plate. The electric field in the middle is
A. 80 N/C, upward. B. 2000 N/C, downward. C. 20 N/C, upward. D. 40 N/C, downward.
Nearsightedness, Farsightedness
A. Astigmatism |
B. Eye Dominance |
C. Focus |
D. Blind Spot |
E. Color Blindness |
F. Afterimages |