1 .Identify type of image represented in the following graphic:

Group of answer choices

Real

Virtual

2. Identify type of image represented in the following graphic:

Group of answer choices

Virtual

Real

3. Identify the direction that the refracted beam will bend:

Group of answer choices

Towards the normal

Away from the normal

4. The capability of a prism that to separate white light into its constituent colors is due to the slight variation of index of refraction as a function of wavelength. This property is referred to as:

Group of answer choices

Dispersion

Funky Colors

Diffusion

Total internal Reflection

5. True or false: A ray of light within a medium of higher index of refraction comes to an interface with a medium of lower index of refraction at an angle greater than the critical angle. There is no light transmitted into the medium of lower index of refraction

Group of answer choices

True

False

6.You are standing exactly halfway between to perfectly parallel mirrors. You see your reflection in the mirror that you are facing, but you notice a second (and many more) reflection that appears even further away.   How much further away is the second reflection image from the first reflection image in the mirror you are facing.

Group of answer choices

10 feet from first reflection

• 1 Light year from first reflection

15 feet from first reflection

5 feet from first reflection

7.(True or false) Parallel rays that pass through a thin lens will be be directed through the lens focal point.

Group of answer choices

True

False

8.(True or false) The law of reflection is mathematically expressed with Snell's law: n 1 sin ⁡ θ 1 = n 2 sin ⁡ θ 2

Group of answer choices

True

False

1. Assume we have the following resources: • 4 graphic displays • 3 printers • 1 disks Consider we have already allocated these resources among four processes as demonstrated by the following matrix named Allocation. Process Name Graphics Printers Disk Drives Process A 0 1 0 Process B 0 0 1 Process C 0 1 0 Process D 1 0 0 The following is the matrix to show the number of each resources requested; we call this matrix Request. Process Name Graphics Printers Disk Drives Process A 2 0 0 Process B 2 2 0 Process C 1 0 1 Process D 0 2 1 a. Apply Deadlock Detection Algorithm and check whether any deadlock exists. b. Suppose now the Process B requests one additional instance of Graphics, and Process C requests two additional instances of Graphics and one additional instance of Disk Drives, whether this can be granted?

Graphic rating scale is the evaluation of employees’ performance by comparing employees against certain “absolute” standards along a number of performance dimensions.

Question 26 options:

Question 27 (2.5 points)

If an applicant takes a test today and then retakes it a week from now, we expect the scores to be similar. This correlation between the scores means there is ______.

Question 27 options:

Question 28 (2.5 points)

Which of the following is an acceptable interview question?

Question 28 options:

Question 29 (2.5 points)

A company that places a high value on learning is also known as a(n) ______.

Question 29 options:

Question 30 (2.5 points)

Selection bias is the extent to which a selection method measures what it is supposed to measure and how well it does so.

Question 30 options:

CASE STUDY 1

Ann is 20 years old and has been working as a graphic designer for 3 years. She earns $35,000 per year in salary after tax. Because her family lives in a country town. Ann had to leave home to find employment and learn to look after herself and her finances.

She shares a flat with 2 friends and pays rent of $150 per week. She estimates that her other weekly expenses, on average, include public transport fares $45; food $120; utility bills $30; mobile phone $30; clothing $50; and miscellaneous expenses $60. She also makes sure that she is saving some of her income and for the past 2 years has arranged for an automatic debit of $300 per month from her bank account into a managed fund. The amount accumulated in the fund comprises the original $2500 she was given for her eighteenth birthday to start the fund and contributions and earnings of $7500, making a total sum of about $10,000. The managed fund is a balanced fund. Any money left over after expenses and investment is kept in her bank account, which totals $2000.

Ann’s main goal is to buy a car in the next 6 months if she can afford it. She will use some money in her managed fund if she has to, but hopes to buy a car valued at about $13000 plus insurance of $750 p.a. she is prepared to take on some extra work in a restaurant to earn another $150 per week in cash to help her to meet her goal.

1. Clearly state Ann’s short-term goal.
2. How would a financial counsellor help Ann to determine whether she may be on target to meet her goal?
3. Prepare a budget for Ann’s income and expenses to assist her to meet her objective.
4. Suggest some budgetary measures to help Ann accumulate her funds. Is there any other advice you may offer to help her achieve her goal?

 Hook Industries is considering the replacement of one of its old metal stamping machines. Three alternative replacement machines are under consideration. The relevant cash flows associated with each are shown in the following​ table:. The​ firm's cost of capital is 9​%.

a.  Calculate the net present value (NPV​) of each press.

b.  Using​ NPV, evaluate the acceptability of each press.

c.  Rank the presses from best to worst using NPV.

d.  Calculate the profitability index​ (PI) for each press.

e.  Rank the presses from best to worst using PI.

Massey Machine Shop is considering a four-year project to improve its production efficiency. Six months ago, it contracted with Dr. Wright to provide a thorough study of whether there was a need for this four-year efficiency project. The report was delivered one month ago and it’s cost was $30,000. The report suggests that the company should go ahead with the project subject to Massey’s financial analysis. Buying a new machine press for $450,000 is estimated to result in $120,000 in annual pretax cost savings. The press falls in the MACRS five-year class and it will have a salvage value at the end of the project of $85,000. At time 0, the press will also require an additional investment in inventory of $9,000. Meanwhile, the accounts payable will increase by $3000. Every other current accounts remain the same. If the company’s tax rate is 20% and the discount rate is 12%, should the company accept the project? (30 pts). The MACRS schedule is as follows:

Massey Machine Shop is considering a four-year project to improve its production efficiency. Six months ago, it contracted with Dr. Wright to provide a thorough study of whether there was a need for this four-year efficiency project. The report was delivered one month ago and it’s cost was $30,000. The report suggests that the company should go ahead with the project subject to Massey’s financial analysis. Buying a new machine press for $450,000 is estimated to result in $120,000 in annual pretax cost savings. The press falls in the MACRS five-year class and it will have a salvage value at the end of the project of $85,000. At time 0, the press will also require an additional investment in inventory of $9,000. Meanwhile, the accounts payable will increase by $3000. Every other current accounts remain the same. If the company’s tax rate is 20% and the discount rate is 12%, should the company accept the project?   (30 pts). The MACRS schedule is as follows:

Question 58

Marigold, a large manufacturing company, currently uses a large printing press in its operations and is considering two replacements: the PDX341 and PDW581. The PDX costs $480,000 and has annual maintenance costs of $8,000 for the first 5 years and $13,000 for the next 10 years. After 15 years, the PDX will be scrapped (salvage value is zero). In contrast, the PDW can be acquired for $120,000 and requires maintenance of $26,000 a year for its 10-year life. The salvage value of the PDW is expected to be zero in 10 years. Assuming that Marigold must replace its current printing press (it has stopped functioning), it has a 9-percent cost of capital, and all cash flows are after tax, which replacement press is the most appropriate? (Round answers to 2 decimal places, e.g. 125.25.)

Chain Replication Approach:

Equivalent Annual NPV Approach:

10. In a study conducted to determine whether the role that sleep disorders play in academic performance, researcher conducted a survey of 1800 college students to determine if they had a sleep disorder. Of the 500 students with a sleep disorder, the mean GPA was 2.51 with a standard deviation of 0.85. Of the 1300 students without a sleep disorder, the mean GPA is 2.85 with a standard deviation of 0.78. Test the claim that sleep disorder adversely affects one’s GPA at the 0.05 level of significance?

11. In one experiment, the participant must press a key on seeming a blue screen and reaction time (in seconds) to press the key is measured. The same person is then asked to press a key on seeing a red screen, again with reaction time measured. The results for six randomly sampled study participants are as follows:

Participant

1

2

3

4

5

6

Blue

0.582

0.481

0.841

0.267

0.685

0.450

Red

0.408

0.407

0.542

0.402

0.456

0.522

Construct a 99% confidence interval about the population mean difference. Assume the differences are approximately normally distributed.

According to the National Bureau of Economic Research, the lengths of business cycles from 1919 to 1995, measured from trough to trough (a trough is the low point) in months, were 61 38 46 50 74 73 98 58 65 44 127 62 74 38 110 57 Find the Standard Deviation, mean, median, mode, and midrange