The corrosion resistance of titanium alloys is due to the formation of a protective layer of titanium _________on the surface.
Fill in the blank(s) with the appropriate word(s).
dioxide
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According to the law of charges, unlike charges ______________
Fill in the blank(s) with correct word
A hollow conducting spherical shell of radius 1.50 cm carries a charge of 5.20 nC. What is the electric field at a distance of 1.20 cm from the center of the shell?
a. 
b. 
c. 
d. 0 N/C
e. 
f. 
g. 
Glycerin at 30 
has a density of 1,260 
and a viscosity of 0.630 Pa-s. The glycerin is poured through a funnel with a neck that is 10.0 cm long and 1.00 cm in diameter. If the level of glycerin is kept at a level 5.00 cm above the neck, then what is the flow rate of the glycerin through the funnel?
A. 
B. 
C. 
D. 
E. 
The diagram shows a planet at four positions in its orbit. At which position does it have the greatest angular momentum?
A) 1 B) 2 C) 3 D) 4 E) The angular momentum is the same at all four points.