Is used for reinforcement because it _____
a. will not corrode
b. has nearly the same temperature expansion and contraction rate as concrete
c. has a lower temperature expansion and contraction rate than concrete
d. is inexpensive
b
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The most dangerous route into the body is by _________________.
Fill in the blank(s) with the appropriate word(s).
Iron is essential for:
a. hemoglobin c. red blood cell formation b. oxygen transportation d. all answers
The refractive index n of a piece of glass is related to the critical angle ? by n=1/sin ?. Assume that the critical angle is measured to be 0.70 ± 0.02 rad. Estimate the refractive index, and find the uncertainty in the estimate.
What will be an ideal response?
Which of the following service application valves is sometimes referred to by truck drivers as a trolley valve or spike?
A. trailer hand valve B. trailer supply valve C. foot valve D. treadle valve