Homework Questions and Answers Archive (2024)

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Listening Activity No. 1In Britain, when giving or asking for telephone numbers, we don't say thousand, hundred or million, we say each number separately. So 4216759 is fourtwo-one, six-seven-five-nine. The ' 0 ' is pronounced ' $ {Oh}$ '. 0814360872 is oheight-one, four-three-six, oh-eight-seven-two. These numbers are in groups. The groups are codes for areas in Britain. When we say the numbers, we pause between the groups. However, when the same number occurs twice the word 'double' is used with the number. 1994422 is one-double nine, double-four, double-two.Listen to some dialogues between a caller on the phone and a secretary. As you listen write the telephone numbers and names in the spaces below.1. Is that ?Yes. Can I help you?I'd like to speak to , please.2. Hi. Is that ?Yes. Who do you want to speak to ?, please.3. Hello. Is that $?$Who do you wish to speak to?, please.4. Good morning. Is that ?Yes. Can 1 help you?I'd like to speak to , please.5. I'm sorry to disturb you, but is that ?Who do you want to speak to?, please.

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3. A decision at the marginLorenzo is a hard-working first-year university student. One Thursday, he decides to work nonstop until he has answered 250 practice problems for his chemistry course. He starts work at 8:00 AM and uses a table to keep track of his progress throughout the day. He notices that as he gets tired, it takes him longer to solve each problem. {cc} Time & Total Problems Answered \\ 8:00 AM & 0 \\9:00 AM & 100 \\10:00 AM & 175 \\11:00 AM & 225 \\Noon & 250 \\ Use the table to answer the following questions.The marginal, or additional, gain from Lorenzo's second hour of work, from 9:00 AM to 10:00 AM, is 75 problems.The marginal gain from Lorenzo's fourth hour of work, from 11:00 AM to noon, is 25 problems.Later, the teaching assistant in Lorenzo's chemistry course gives him some advice. "Based on past experience," the teaching assistant says, "working on 87.5 problems raises a student's exam score by about the same amount as reading the textbook for one hour." For simplicity, assume students always cover the same number of pages during each hour they spend reading.Given this information, in order to use his four hours of study time to get the best exam score possible, how many hours should he have spent working on problems, and how many should he have spent reading?Four hours working on problems, zero hours readingOne hour working on problems, three hours readingThree hours working on problems, one hour readingTwo hours working on problems, two hours reading

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KryptoRM 122Department of Science and TechnologyPHILIPPINE SCIENCE HIGH SCHOOL-CENTRAL VISAYAS CAMPUSTalaytay, Argao, CebuIntervention Exam (LONG Exam)Problem Solving. Show your solution clearly and systematically.Problem 1 (15 pts). A playground is on the flat roof of a city school, $h$ above the street as shown in Figure 1. The vertical wall of the building is $ {H}$, to form a $( {H}- {h})$ high railing around the playground. A ball has fallen to the street below, and a passerby returns it by launching it an angle of $ { }$ above the horizontal at a point $ {d}$ from the base of the building wall. The ball takes $2 t$ to reach a point vertically above the wall. Express your answer in terms of $H, h, , t$, and $g$.Figure 1i. Calculate the speed at which the ball was launched.ii. Calculate the vertical distance by which the ball clears the wall.iii. Calculate the horizontal distance from the wall to the point on the roof where the ball lands.Problem 2 (15pts). Two boxes, $m_{1}=m$ with a coefficient of kinetic friction of $ $, and $m_{2}=2 m$ with a coefficient of $2 $, are placed on a plane inclined at $ { }$ as shown in Figure 2. Express your answer in terms of $m, , $, and $g$.i. Draw FBD for each mass.ii. Calculate the acceleration does each box experience.Figure 2

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14. Which of the following is ignored when calculating accounting profit?(A) Total revenue(B) Variable costs(C) Implicit costs(D) Fixed costs(E) Total costs15. Habib withdrew $\$ 100,000$ from his bank account paying $5 \%$ interest to purchase equipment for his construction company. If Habib earns an accounting profit of $\$ 10,000$ and he has no other opportunity costs, his economic profit will be equal to(A) $\$ 0$(B) $\$ 5,000$(C) $\$ 15,000$(D) $\$ 105,000$(E) $\$ 115,000$16. Kieran owns and operates his own bike shop. In the past week, a competitor offered to buy Kieran's bike shop for $\$ 100,000$ and hire Kieran for $\$ 50,000$ per year. Assume the annual interest rate is 6 percent, and Kieran's accounting profit from his bike shop is $\$ 60,000$. Kieran's economic profit is(A) $-\$ 96,000$(B) $-\$ 90,000$(C) $\$ 4,000$(D) $\$ 10,000$(E) $\$ 60,000$

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In this problem you will compare the van der Waals (vdW) equations of state of CO2 and N2with that of the ideal gas. The vdW parameters for CO2 and N2 are (a=3.59 atm L2 /mol 2 , b=0.0427L/mol) and (a=1.39 atm L2 /mol 2 , b=0.03913 L/mol), respectively.(a) Determine the critical volume, pressure and temperature for both CO2 and N2 .This can be done using Mathematica’s Solve function by simultaneously enforcing𝑃 = 𝑃(𝑉, 𝑇),( )*)+ , - =0, and ( ) . *)+ . , - = 0 (e.g., the critical point).(b) Plot the ideal gas and vdW EOS isotherms for N2 (T=100 K, 128 K, and 150 K)(c) Repeat for CO2 (T=200 K, 303 K, and 400 K)(d) The departure of a gas from ideal law behavior is described by the compression factor,which can be written as Z = P(V,T)V/(RT) and plotted as Z(V,T) vs P(V,T). Plot thecompressibility factors Z(V,T) vs P(V,T) for N2 and CO2 on separate plots, for the respectiveN2 and CO2 isotherms given in (b) and (c) above. Hint: Use the ParametricPlot function inMathematica. For example, to plot a T=300 K isotherm you could use

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CuulMann Inc. had $91,400 in 2017 taxable income. Using the rates table below, calculate the company's average tax rate for 2017.Taxable IncomeTax Rate$ 0 – 50,00015%50,001 – 75,00025%75,001 – 100,00034%100,001 – 335,00039%CuulMann Inc. had $91,400 in 2017 taxable income. Using the rates table below, calculate the company's average tax rate for 2017.Taxable IncomeTax Rate$ 0 – 50,00015%50,001 – 75,00025%75,001 – 100,00034%100,001 – 335,00039% 34.00% 31.81% 21.14% 23.72%

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Refer to the following items on the balance sheets of a firm for the years ending December 31, 2021, and 2022.ITEM20212022Accounts Payable$729,500$917,300Long Term Debt$1,283,900$1,085,807Common Stock ($1 par)$2,184,000$2,471,300Retained Earnings$3,227,100$3,419,800 If the firm's interest expense on its 2022 income statement was $408,516, calculate the net cash flow to the firm's creditors in 2022.Refer to the following items on the balance sheets of a firm for the years ending December 31, 2021, and 2022.ITEM20212022Accounts Payable$729,500$917,300Long Term Debt$1,283,900$1,085,807Common Stock ($1 par)$2,184,000$2,471,300Retained Earnings$3,227,100$3,419,800 If the firm's interest expense on its 2022 income statement was $408,516, calculate the net cash flow to the firm's creditors in 2022. $210,423 $522,416 $408,516 $606,609

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A firm’s common stock has par value of $0.25 per share. The firm issued 200,000 shares of new common stock this past accounting season at a market price of $15 per share. As a result of this issue, the equity portion of the firm’s balance sheet will have the following change(s): I. The common stock line will increase by $200,000 II. The capital surplus line will increase by $3,000,000 III. The capital surplus line will increase by $2,950,000 IV. The common stock line will increase by $3,000,000A firm’s common stock has par value of $0.25 per share. The firm issued 200,000 shares of new common stock this past accounting season at a market price of $15 per share. As a result of this issue, the equity portion of the firm’s balance sheet will have the following change(s): I. The common stock line will increase by $200,000 II. The capital surplus line will increase by $3,000,000 III. The capital surplus line will increase by $2,950,000 IV. The common stock line will increase by $3,000,000 IV only III and IV only III only I and III only

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The following information is available for QDC Devices Inc. Use this information to answer the question below: Category2021 ($)2022 ($)Accounts payable750800Accounts receivable700950Cash100300COGS600650Common stock2,5003,900Depreciation expense1040Interest expense7090Inventories1,3001,100Long-term debt2,0001,700Net fixed assets5,9507,150Notes payable200400General & Adm. expenses80110Retained earnings2,6002,700Revenue/Sales1,0001,200Taxes95120 Calculate the net cash flow from investing activities in 2022.The following information is available for QDC Devices Inc. Use this information to answer the question below: Category2021 ($)2022 ($)Accounts payable750800Accounts receivable700950Cash100300COGS600650Common stock2,5003,900Depreciation expense1040Interest expense7090Inventories1,3001,100Long-term debt2,0001,700Net fixed assets5,9507,150Notes payable200400General & Adm. expenses80110Retained earnings2,6002,700Revenue/Sales1,0001,200Taxes95120 Calculate the net cash flow from investing activities in 2022. $1,240 $1,200 – $1,200 – $1,240

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Teaching material for a course in SoftwareProject Management & Software Engineering – Part I Chapter 1In this chapter, we will learn• What is a project?• What is a software project?• What processes are involved in a software project?• How are people, processes, tools, and technology integrated in a project?• What are the characteristics of a good project manager?• What are the subprocesses in the area of project management processes?• What management metrics are measured in software projects?Part 1: Project Management Chapter 1 (Introduction)• Any set of activities can be considered to be a Project if they have a definite start time and end time and these set of activities achieve some pre defined goals.• A project needs resources for a definite period of time. These resources are released after project gets completed. Jobs versus projects versus projects‘Jobs’ – repetition of very well-defined and well understood tasks with very little uncertainty‘Exploration’ – e.g. finding a cure for cancer: the outcome is very uncertain‘Projects’ – in the middle! Are software projects really different from other projects?Not really! …but…• Invisibility• Complexity• Conformity• Flexibility make software more problematic to build than other engineered artefacts. 5Characteristics of projects A task is more ‘project-like’ if it is:• Non-routine• Planned• Aiming at a specific target• Work carried out for a customer• Involving several specialisms• Made up of several different phases• Constrained by time and resources• Large and/or complex 6Part 1: Project ManagementFundamentals Chapter 1 (Project Management Introduction) Project consumes resources, time and budgetPart 1: Project Management Chapter 1 (Introduction)• A project can be initiated to build a road, a building, a software product etc. Managing a project will need different kinds of metrics, tools, skills etc.• A project can be broken down into project phases. These project phases include project initiation, project planning, project monitoring & control and project closure.• For each kind of project, there could be sub processes within each of the project phases. These sub processes are not related to project processes but belong to industry specific processes. For example, software development lifecycle processes (requirement gathering, software design etc.) fall within various project processes but are not part of project processes.• Software project management is the management of any software project. Specialized skills are needed to manage these projects for example software engineering, software testing, software design etc.Part 1: Project ManagementFundamentals Chapter 1 (Project Management Introduction) Project phasesPart 1: Project ManagementFundamentals Chapter 1 (Project Management Introduction) Software tasks in software projectsPart 1: Project ManagementFundamentals Chapter 1 (Project Management Introduction) Project initiation tasksPart 1: Project ManagementFundamentals Chapter 1 (Project Management Introduction) Software product development initiation tasksPart 1: Project ManagementFundamentals Chapter 1 (Project Management Introduction) Software product implementation initiation tasksPart 1: Project ManagementFundamentals Chapter 1 (Project Management Introduction) Project management in waterfall model environmentPart 1: Project ManagementFundamentals Chapter 1 (Introduction)• A software project will have processes like software life cycle processes (requirement gathering, software design, software construction, software testing etc.), software project processes, software configuration managementPart 1: Project ManagementFundamentals Chapter 1 (Project Management Introduction) project phases with software lifecycle tasksPart 1: Project ManagementFundamentals Chapter 1 (Project Management Introduction) Quality Characteristics required of software project metricsQuestion: give examples of real life scenarios where the concepts in this chapter can be used

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Use the balance sheets below for the years 2020 and 2021 to answer the question that follows.Balance Sheet as of December 31, 2020 2021 2020 2021Cash $3,476,500 $4,098,500 Acct. Payable $2,040,000 $1,600,000Acct. Receivable $2,060,000 $5,920,000 Notes Payable $3,772,000 $4,431,000Inventory $1,500,000 $1,223,000 Current Liabilities $5,812,000 $6,031,000Current Asset $7,036,500 $11,241,500 Long Term Debt $1,550,800 $704,000 Total Liabilities $7,362,800 $6,735,000Net Fixed Assets $6,907,900 $7,551,100 Common Stock $510,000 $600,000($0.50 par) Capital Surplus $3,035,600 $6,959,600 Retained Earnings $3,036,000 $4,498,000 Total LiabilitiesTotal Assets $13,944,400 $18,792,600 & Equity $13,944,400 $18,792,600 Calculate the change in net working capital in 2021.Use the balance sheets below for the years 2020 and 2021 to answer the question that follows.Balance Sheet as of DecemberTotal Assets $13,944,400 $18,792,600 & Equity $13,944,400 $18,792,600 Calculate the change in net working capital in 2021. $2,945,000 $3,986,000 $1,224,500 $5,210,500

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