____________________ is a synthetic crystal that when exposed to the intense light from the flash tubes can produce high quantities of laser energy.
Fill in the blank(s) with the appropriate word(s).
Yttrium aluminum garnet
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About how many times above the normal running current value will be measured if a threephase compressor motor is single-phasing?
a. 1.5 times b. 2 times c. 3 times d. 5 times
The city engineer and economic development directors are evaluating two sites for construction of a multipurpose sports arena. The sites are downtown (DT) and southwest (SW) of the metropolitan area. The city already owns enough land at the DT site; however, the land for a parking garage will cost $1 million, and construction costs will be $10 million for the parking garage, infrastructure relocation, and drainage. The SW site is 30 km from downtown, but the land will be donated by a developer who knows that an arena at this site will dramatically increase the value of the remainder of his land holdings. Because of its centralized location, there will be greater attendance at most of the events held at the DT site. This will result in more revenue to vendors and local merchants in the
amount of $700,000 per year. Additionally, the average attendee will not have to travel as far, resulting in annual benefits of $400,000 per year. All other costs and revenues are expected to be the same at either site. If the city uses a discount rate of 6% per year, and will construct at one site or the other, which site should be selected? Use a 30-year study period. What will be an ideal response?
Which of the following conditions are reason to OOS deadline a vehicle for tire defects?
A. tread depth measures 1/32 inch in two grooves B. mixing bias and radial ply on same axle C. sidewall is cut exposing the casing ply cord D. any of the above
Let X and Y be random variables with 
=1, 
=2, 
=3, 
=1, and 
=0.5. Find the means and variances of the following quantities.
a. X+Y b. X–Y c. 3X+2Y d. 5Y – 2X