of the slope. (a) What is the mechanical energy of James Bond at points A and D? (b) Determine the speed of Bond at position B abd C. (c) What is the work done by friction in the parking lot? (d) Find the magnitude of the average friction force. SOLUTION : (a) At point A EA = mgh = (90 kg) 9.80 m/s2 (15 m) = 13230 J At point B‚ James Bond is at rest so‚ EB = 0 (b) Using conservation of energy: EA = EB ⇒ EA = EC ⇒ mgh = mg h 1 + mv 2 ⇒ 2 2 B ⇒ vB = vC = gh = 2gh = 9.80 m/s2 (15 m) = 12.1 m/s 2 9.80
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Problem/Solution Essay Procrastination The biggest problem that has always given me trouble is procrastination. Though I’m not the only student that suffers from this problem‚ it is one of the most common occurrences among teenagers. How procrastination is detected is shown by people doing their work at the last second and rushing to get it done. Ways I procrastinate it by getting side tracked by something usually more entertaining; for instance TV‚ radio‚ or even video games. When I start to
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Chapter 5: Cost Behavior: Analysis and Use As we shall see in later chapters‚ the ability to predict how costs respond to changes in activity is critical for making decisions‚ controlling operations‚ and evaluating performance. Three major classifications of costs were discussed in this chapter—variable‚ fixed‚ and mixed. Mixed costs consist of variable and fixed elements and can be expressed in equation form as Y = a + bX‚ where X is the activity‚ Y is the cost‚ a is the fixed cost element‚ and
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ISyE 6201: Manufacturing Systems Instructor: Spyros Reveliotis Solutions to Homework 1 A. Chapter 2‚ Problem 4. (a) D = 60 units/wk × 52 wk/yr = 3120 units/yr h = ic = 0.25/yr ×$0.02 = $0.005/ yr A = $12 2AD 2 × 12 × 3120 Q∗ = = = 3869.88 ≈ 3870 h 0.005 The time between orders is given by 3870 Q∗ = = 1.24 yr = 14.88 mo T∗ = D 3120 (b) D 3120 units/yr = $12 = $9.67/yr Q 3870 units Q 3870 units Holding cost is h = × $0.005/yr = $9.675/yr. 2 2 The costs are essentially
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to be built. Heathrow‚ the main international hub‚ handled 70m passengers last year‚ and is operating beyond all sensible limits to its capacity. The slightest setback can cause extensive cancellations and delays. In this section Heathrow: our solution Can India become a great power? It’s the politics‚ stupid This septic isle Apocalypse perhaps a little later Reprints Related topics Heathrow Airport London United Kingdom The capital’s other airports‚ Stansted especially
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Solution of Free Sex Nowadays‚ free sex is a very serious problem. If the adolescent problems that exist in this country is not reduced and resolved quickly then it can cause destruction of the order of the nation’s future. Facts show that most of our youth not knowing the impact of sexual behavior they are doing‚ often adolescents are not ripe for sexual intercourse even more so if you have to bear the risk of sexual relations. Entering the modern world it is only fitting that when the parents
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Tutorial 1 Solutions Your tutor will go through as many questions as possible with you in the tutorial. You should come to class with answers to these questions prepared. Solutions will be posted after the end of the week of the tutorial. Fundamental Concept Questions Question One “Options and futures are zero-sum games.” What do you think is meant by this statement? The statement means that the gain (loss) to the party with the short position is equal to the loss (gain) to the party
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ANSWERS page 1 page 2 ELL Support 7-1 7-1 Exploring Exponential Models exponential function exponential growth exponential decay growth factor decay factor 1. Is an exponential model reasonable for this situation? Explain. 1. In the function y 5 12(2.3)x ‚ the value 2.3 is the growth factor . asymptote 2. An Yes; the population decreases at a fixed‚ constant rate of 3.5% per year. is a line that a graph approaches as x or y increases in An exponential model is reasonable absolute
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Tutorial solutions 4 QUESTIONS 5. What is meant by a currency trading at a discount or at a premium in the forward market? Answer: The forward market involves contracting today for the future purchase or sale of foreign exchange. The forward price may be the same as the spot price‚ but usually it is higher (at a premium) or lower (at a discount) than the spot price. PROBLEMS 4. Restate the following one-‚ three-‚ and six-month outright forward European term bid-ask quotes in forward points. Spot
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The SoftTec Products Company is a successful‚ small‚ rapidly growing‚ closely held corporation. The equity owners are considering selling the firm to an outside buyer and want to estimate the value of the firm. Following is last year’s income statement (2010) and projected income statements for the next four years (2011–2014). Sales are expected to grow at an annual 7 percent rate beginning in 2015 and continuing thereafter. .:. Selected balance sheet accounts at the end of 2010 were as follows
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