Question: Some lasers are referred to as being “cw.” What does “cw” mean? 1) Circular wave 2) Constant white 3) Continuous wave 4) Clear white Science Quiz‚ Technology Quiz Question: What is the process responsible for producing photons in a diode laser? 1) Fermi level shift 2) Majority carrier injection 3) Carrier freeze out 4) Electron-hole recombination Science Quiz‚ Technology Quiz Question: What are three types of lasers? 1) Gas‚ metal vapor‚ rock 2) Pointer‚ diode‚
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Final APES Review What you know: 1. Green revolution: intro of scientifically bred or selected varieties of grain that can greatly increase crop yields. 2. Things that cause seasons on earth: earth tilted on axis‚ sun distribution 3. Large scale hydroelectric projects around the world: 3 gorges dam‚ dams going on in india 4. Age distribution diagrams: ZPG=looks like a building that doesn’t change‚ bottom same as top. Slow growth=base a bit longer than top but not quite a pyramid
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Stemple chose to follow through on “taking a dive‚” as suggested by Twenty One’s producer. By‚ consciously‚ following through with the scripted plan for his dismissal from the show you began to see his string of poor choices. The prize money won from the quiz show was handed over to a “bookie” for a questionable land investment. He threatens to take legal action and reveal the show as a “fraud” when he was a willing participant in the deception of the viewers. In all of his ranting‚ his character and morals
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Chemistry and cosmetics Cosmetics have been around since almost the beginning of time. Egyptian women used kohl to darken their eyelids‚ Cleopatra was even said to have bathed in milk to achieve a soft smooth completion. In Greece‚ women used lead carbonate (a white powder) to obtain a pale complexion‚ which probably wasn’t worth it seeing how it cost them their lives! Anyway‚ cosmetics are no modern phenomenon! Today it is a big business‚ making about $12 billion
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HIS 121 Study Guide #1 The American Promise: A Compact History The first exam will cover chapters 1-4. The exam will consist of 33 multiple choice questions and three short answer paragraphs. Please know the following: Historians/Archeologists: Historians direct their attention to mostly writing (personal and private jottings‚ letters‚ diary entries‚ public documents: laws‚ court cases‚ newspapers‚ speeches)‚ arachaelogist tend to focus on physical objects (bines spear points‚ pots‚
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In the article “The Perils and Promises of Praise‚” Stanford psychologist Carol Dweck hypothesizes that praise for student’s endeavors encourages them‚ whereas‚ praising students for intelligence obscures the skills they can improve. Dweck insists that educators adjust the way they praise their student for the sake of present and future generation. Through research‚ Dweck came to the conclusion that different kinds of praise can affect how a student perceives themselves and how they do academically
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computer ------------------------------------------------- Computational chemistry From Wikipedia‚ the free encyclopedia Computational chemistry is a branch of chemistry that uses principles of computer science to assist in solving chemical problems. It uses the results of theoretical chemistry‚ incorporated into efficient computer programs‚ to calculate the structures and properties of molecules and solids. Its necessity arises from the well-known fact that apart from relatively recent results
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a) From the diagram‚ we get when R1 = 2kpc‚ v1 = 200km/s R2 = 5kpc‚ v2 = 220km/s R3 = 10kpc‚ v3 = 225km/s R4= 15kpc‚ v4 = 220km/s R5 = 20kpc‚ v5 = 222km/s R6 = 25kpc‚ v6 = 223km/s v2 = GMR/R MR = v2R/G M1 = (2000002*2000*3.09*1016)/(6.67*10-11) = 3.706*1040kg M2 = (2200002*5000*3.09*1016)/(6.67*10-11) = 1.12*1041 kg M3 = (2250002*10000*3.09*1016)/(6.67*10-11) = 2.35*1041kg M4 = (2200002*15000*3.09*1016)/(6.67*10-11) = 3.36*1041kg M5 = (2220002*20000*3.09*1016)/(6.67*10-11)
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Practice Questions Chapter 6: Systems Development Chapter 7: Enterprise Infrastructure‚ Metrics‚ and Business Continuity Planning 1. What is the structured approach called for developing software and information systems? A) Software design B) Prototyping *C) Systems development life cycle D) Systems methodology 2. Who is the person who typically manages the software development project? A) Software engineer *B) Project manager C) IT manager D) Technology director 3. In
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Should recipients of welfare be forced to take drug tests? States have been proposing this very thing since the federal welfare reform in 1996. Sentiments from many who are supportive of the legislation seem to be in agreement that they do not want tax dollars spent on drugs and that if you have enough money to buy drugs then you don’t need public assistance. One popular belief is that this will save wrongfully spent tax dollars and shift it to those who need it and are trying to do the right thing
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