Two otherwise identical light waves arriving at the same point with peak matching valley undergo
a. constructive interference.
b. destructive interference.
c. polarization.
d. none of the above.
b
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Three point charges are positioned as follows: 
is at (0.00 m, 0.00 m), 
is at (1.20 m, 0.00 m), and
is at (1.20 m, 1.60 m). If 
in what direction (ccw from the x axis) is the force on
?
a. 
b. 
c. 
d. 
e. 
Uniform Circular Motion: A point on a wheel of radius 40 cm that is rotating at a constant 5.0 revolutions per second is located 0.20 m from the axis of rotation. What is the acceleration of that point due to the spin of the wheel?
A. 0.050 m/s2 B. 1.4 m/s2 C. 48 m/s2 D. 200 m/s2 E. 0.00 m/s2
Two isolated copper plates, each of area 0.40 m2, carry opposite charges of magnitude 7.08 × 10-10 C. They are placed opposite each other in parallel alignment, with a spacing of 4.0 cm between them
What is the potential difference between the plates? (?0 = 8.85 × 10-12 C2/N ? m2 ) A) 8.0 V B) 0.40 V C) 3.0 V D) 7.6 V E) 3.2 V
A 1.5-m tall woman stands 5.0 m in front of a camera with a 8.0 cm focal length lens. What is the size of the image formed on film?
a. 2.4 cm c. 1.9 cm b. 0.60 cm d. 1.2 cm