If Q = 400 ?C and the potential difference VA?VB = ?10 V in the circuit segment shown below, what is the current in the resistor?
A. 1.0 mA right to left
B. 1.0 mA left to right
C. 3.5 mA right to left
D. 3.5 mA left to right
E. None of the above
Answer: A
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, 
, and 
, having magnitudes 7.0 cm, 6.0 cm, and 4.0 cm, respectively. Find the x and y components of the resultant of these three vectors.
What will be an ideal response?
Alternating current is normally produced by a
A) battery. B) generator. C) both of these D) neither of these
When the Sun is located near one of the horizons, an observer looking at the sky directly overhead will view partially polarized light. This effect is due to which of the following processes?
a. reflection b. double refraction c. selective absorption d. scattering
Light enters an equilateral triangle prism in a direction parallel to one side. The prism is made of glass with an index of refraction of 1.52. What is the angle between the incoming ray and the ray that leaves the prism on the other side?
A) 83° B) 19° C) 59° D) 27° E) 55°