A 150-W light bulb is designed to operate at 110 V dc. How much current does it draw?
A) 15 A B) 1.4 A C) 0.73 A D) 2.0 A
B
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By what factor is the total pressure greater at a depth of 650 m in water than at the surface where the pressure is one atmosphere? (water density = 1.0 × 10^3 kg/m3, 1 atmosphere pressure = 1.01 × 10^5 N/m2, and g = 9.8 m/s2)
a. 100 c. 64 b. 83 d. 19
Relative to the stars, the moon moves about _________ eastward in the sky each night
a. 1° b. 5° c. 13° d. 27.3° e. 29.5°
A light ray goes through two thick rectangular slabs of glass, each of the same uniform thickness. The first slab has index of refraction n1 and the second n2 . If n1< n2. How does the original angle of incidence 
into the first slab compare to the final angle of refraction where the ray leaves the second slab going back into air?
A. 
B. 
C. 
D. 
E. more information is needed
A 15-?F capacitor is charged to 40 V and then connected across an initially uncharged 25-?F capacitor. What is the final potential difference across the 25-?F capacitor?
a. 12 V b. 18 V c. 15 V d. 21 V e. 24 V