DRUK REGS OP DIE KNOPPIE HIERONDER OM DIE LINK NA DIE VISUELE BEELDE VIR VRAAG 1 A – 1 C IN ‘N NUWE TAB OOP TE MAAK :       Modernisme is ʼn radikale breek met die verlede en ʼn soeke na nuwe vorms van ekspressie     FIGURE 1a, 1b en 1c is visuele illustrasies van werke van kunstenaars wat deel uitmaak van verskillende groepe wat van die tradisie van die Akademie weggebreek het.     1.1 Verwys na FIGUUR 1a. Ontleed die kunswerk in terme van die volgende om hierdie wegbreek te illustreer.    Onderwerp Styl en tegniek Formele elemente     (6)    

A nurse is collecting data from a client who is reporting pain despite taking analgesia. Which of the following actions should the nurse take to determine the intensity of the client’s pain?

. _________ “shotgun policy” was designed to “redeem” the state from Republican rule.  

A power line has a current which runs due north. In what direction does the magnetic field point at a location directly above the power line?  

You have 120 minutes to complete this examination. The examination will be graded out of a possible 50 points. The maximum points awarded to each question are indicated in parentheses beside the question number. The answers should be written clearly and legibly on blank pieces of paper and also write down your name and U-ID clearly. Good luck! 1. (4 points) Consider the following industries: pharmaceutical, cement, perfumes, and computer storage devices. How would you expect them to be ordered by advertising intensity according to the Dorfman-Steiner formula? Explain Why?    2. (4 points) Consider the structure of geographically isolated markets in the US (small towns) in the following businesses: doctors. It can be shown that the minimum town size that justifies the entry of a second doctor is approximately 3.96 times the required size for the first doctor to enter. How can the number be interpreted?   3. (4 points) “Tourists traipsing along a half-mile stretch of 23rd Street in New York pass five Starbucks outlets. In Tokyo, 7-Eleven boasts 15 stores within a similar distance of Shinjuku station.” Does it make any sense for stores to be clustered in this way? Explain why.    4. (4 points) “For some industries, imposing barriers to entry by government may be welfare improving.” What particular industry characteristics might make this statement valid? Can you list an industry as an example?   5. (10 pts) Your company sells expensive, branded fountain pens. There are 100,000 people aware of your pens. These willingness-to-pay numbers are uniformly distributed between $0 and $500. So, your demand curve is given by Q=100000*(1-p/500). Your marginal cost per pen is $100. Well-versed in economics, you are pricing your pens at $300 each, and selling 40,000 pens, generating a contribution of $8 million. You, as a brand manager, are considering running a major promotional campaign. Two possible advertising campaigns are available: “Build Value” and “Expand Reach.” You have to choose one of them or none. The “Build Value” campaign will not reach any new customers, but will increase the existing customers’ willingness-to-pay by 20%, and this campaign cost 2 million to run. The “Expand Reach” campaign will expand the set of potential consumers by 20%, from 100000 to 120000. This campaign cost 1 million to run. a. (4 pts) If your choice were between running the “Build Value” campaign and running no campaign at all, would you choose to run the “Build Value” campaign? Explain. b. (4 pts) If your choice were between running the “Expand Reach” campaign and running no campaign at all, would you choose to run the “Expand Reach” campaign? Explain. c. (2 pts) What choice would you make in this situation: Run the “Build Value” campaign, run the “Expand Reach” campaign, or run neither? Explain.   6. (14 pts) Maytag wants to prevent Whirlpool from entering its market. The following payoff table shows the profit each firm would earn in each of the four possible decision combinations: Maytag Low High Whirlpool Stay out A $0,  $35 B $0,  $50 Enter C –$10,  $20 D $30,  $30 Payoffs in millions of dollars of profits a. (2 pts) If Maytag and Whirlpool make their decisions simultaneously, Whirlpool is likely to _______________ (stay out, enter) and Maytag is likely to price ____________ (low, high). b. (2 pts) Suppose Maytag says to Whirlpool, “If you enter, I will price low until you decide to exit.” Discuss whether this threat is credible or not and explain why.   Suppose Maytag makes the first move and expands its productive capacity before Whirlpool makes its entry decision, which results in the following payoff table: Maytag Low High Whirlpool Stay out A $0,  $30 B $0,  $40 Enter C –$12,  $16 D $14,  $14 Payoffs in millions of dollars of profits c. (6 pts) Construct the game tree for this capacity expansion decision. Let Maytag make the first decision to expand capacity or not to expand capacity.  Then let Whirlpool make its entry decision.  Finally, let Maytag choose its price.  Show the likely outcome on the game tree (find the equilibrium outcome of the game). d. (4 pts) Based on your game tree in part c, Maytag ___________ (still cannot, can now) deter Whirlpool from entering if the investment in new productive capacity is _________________ .   7. (10 points) Consider an industry with three identical competitors who simultaneously set output levels (Cournot model). Market inverse demand is given by

Two parallel wires each have a current flowing in the same direction. In which direction is the force on one of the wires?  

An electric field of 2000 V/m is in the positive x-direction and a magnetic field of 0.1 T is in the positive z-direction. What velocity must a beam of electrons have in order to travel in a straight line? Include both the magnitude and the direction.  

The right portion of a rectangular loop is in a constant magnetic field into the page, while on the left there is no magnetic field, as shown in the figure. If the loop is stationary and a power supply causes a clockwise current in the loop, in which direction will the net force on the loop be?

For all of the remaining problems on this exam, only enter your FINAL answer in the space given. You will submit your work for these problems for partial credit after the exam is over by using the Exam 3 Work assignment in Canvas.

You are given a wire loop and a magnet. Can the following actions cause a current to flow in the wire loop? Shaking the wire loop back and forth while it is near the magnet.  [c1] Shaking the magnet back and forth while it is near the wire.  [c2] Rotating the magnet while it is near the wire.  [c3]