UNIVERSITY OF WATERLOO CS 350 MIDTERM :: SPRING 2012 Date: Monday‚ June 25‚ 2012 Time: 7:00 – 8:50 pm Instructor: Dave Tompkins Exam Type: Closed book Additional Materials Allowed: none Last Name: SOLUTION First Name: ____________________________ Student #: __ __ __ __ __ __ __ __ UW Login: __ __ __ __ __ __ __ __ Signature: ____________________________ Question Out Of INSTRUCTIONS 1. Before you begin‚ make certain that you have one exam booklet with 8 pages (double sided) 2. All solutions
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Exam 1 1. Country A is extremely efficient in the mining of tin. However‚ its climate and terrain makes it difficult to produce corn. According to the theory of comparative advantage‚ Country A should: concentrate its production on tin and buy corn from an efficient producer. 2. Climate and terrain in several South American countries are conducive to growing coffee efficiently. While other countries can grow coffee‚ they are not as efficient and effective at coffee growing because of short seasons
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PL/SQL Chapter 7 Solutions Review Questions 1. B 2. D 3. A‚D 4. C‚D 5. B‚D 6. A 7. C 8. D 9. A 10. D 11. The user_objects view can be used to determine all the packages that exist in the database. In the query‚ use a WHERE clause to select the rows that contain the term ’PACKAGE’ in the object type column. Selecting the text column of the user_source view will list all the source code lines in the package. Use a WHERE clause on the name column to select a single package. 12. If there are values
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Solved Problems : Doing Physics 1. The power output of a typical large power plant is 1000 megawatts (MW). Express this result in (a) W‚ (b) kW‚ and (c) GW. a) 1000 MW = 103 × 106 W = 109 W b) 1000 MW = 103 × 106 W = 106 kW c) 1000 MW = 103 × 106 W = 1 GW 2. A car is moving at 35.0 mi/h. Express its speed in (a) m/s and (b) ft/s. a) 35 mi/h = 35 × 1.609 × 103 = 15.6 m/s 3600 b) 35 mi/h = 35 × 1.609 × 103 × 102 = 51.3 f t/s 2.54 × 12 × 3600 3. Add 3.63105 m and 2.13103 km . 3.63105 + 2.13103 ×
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Levin Furniture is a family-owned furniture retailer chain with 35 locations in Ohio and Pennsylvania. The current president‚ Robert Levin‚ has upheld the Levin family tradition of acknowledging the importance of excellent service‚ quality products‚ and reasonable pricing for their customers. In addition‚ the company is known for its commitment to assisting the local communities by actively participating in community events and fundraisers‚ as well as donating to charitable causes. One charitable
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“Child of the Americas” by Aurora Levins Morales is a poem about an American who came from a mixture of numerous cultures that formed her heritage and her character as an American. This poem’s focal points are on cultural diversity and the viewpoint of immigrants in the American society. In my opinion‚ this poem was intriguing because it bought to light many of the racial and ethnic discrimination we endure in the world today‚ and also leaves the reader speculating about his/ her own cultural background
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Chapter 8 Review Questions 1. b 2. c 3. a‚c 4. b 5. a‚b 6. d 7. b 8. b 9. a 10. c 11. b 12. b 13. b 14. d 15. a‚c 16. Dependencies on packaged program units are driven by the package specification. Any changes to the header of the packaged program units being referenced will change the status of the dependent object to INVALID. Changes to the body only will not alter the status of dependent objects. 17. BASK_CALC_SP ORDER_TOTAL_SP 18. To be aware of affected objects and the recompilation
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Macroeconomic Analysis ECON 6022A Fall 2013 Solutions to Problem Set 1 September 30‚ 2013 1 National Income Accounting ABC Computer Company has a $20‚000‚000 factory in Silicon Valley. During the current year ABC builds $2‚000‚000 worth of computer components. ABC’s costs are labor‚ $1‚000‚000; interest on debt‚ $100‚000; and taxes‚ $200‚000. ABC sells all its output output to XYZ Supercomputer. Using ABC’s components‚ XYZ builds four supercomputers at a cost of $800‚000 each ($500
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King Saud University College of Computer and Information Sciences Information Technology Department IT327 Artificial Intelligence Homework 2 search strategies Q1. A. Show that DFS generates about O(bm) nodes in the search tree. m: The maximum length of any path in the state space b: The branching factor: maximum number of successors of any node. At the worst case‚ DFS generates about O(bm) nodes in the search tree. As follows : At m (max depth )tries : 1 +b + b2 + b3 +….+ bm =O(bm)
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In Ira Levin’s The Boys from Brazil‚ Nazi war criminals who have escaped justice are the cause of more death and destruction in world 30 years after the end of World War II. This is just one of many possible scenarios of what could happen if war criminals were not punished for their crimes. Men capable of such evil have no right to be loose in the world. War crimes have been a problem in the world as long as war itself‚ despite the term not being coined until the 20th century. There are various types
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