Q3. 5 kg of water at T = 20° C and P = 7 bar is isobarically heated such that ΔU = 5000 kJ. (i) Find the initial and final volumes (in m3 ). (ii) Find Q and W (in kJ). (iii) Show the initial and final states on p-υ and T-υ diagrams (not to scale), denoting by arrows the direction of the process. Label the ‘f’ (saturated liquid) and ‘g’ (saturated vapor) points. Also, indicate the values of υf and υg on the x-axis of both the p-υ and T-υ diagrams.

Q4. Water inside a closed, rigid tank is cooled from its critical point to a final pressure of 10 MPa. (i) Sketch the process on p-υ and T-υ diagrams. Label the saturated liquid and saturated vapor states. (ii) Find the quality of the water after cooling. (iii) Calculate the heat transfer in kJ/kg.

Q5. Water of mass 1 kg contained in a piston-cylinder configuration is initially in a saturated liquid state (state A) at 10 bar. The water undergoes the following thermodynamic cycle: AB -> The water is heated isobarically until the water is in a saturated vapor state. BC -> The system is then cooled isochorically until the pressure is 1 bar. CD -> The system is further cooled isobarically until υD= υA. DA -> The system is finally heated isochorically back to state A. (i) Sketch this cycle on p-υ and T-υ diagrams (not to scale), using arrows to indicate the direction of each process. (ii) For each of the four states A to D, write down p, T and υ. (iii) For each of the four processes, evaluate the work and heat transfer (in kJ). (iv) What is the thermal efficiency of this power cycle?

Q6 (Bonus). Water of mass 2 kg in a closed, rigid tank is initially in the form of a twophase liquid-vapor mixture. The initial temperature is 50° C. The mixture is heated until the tank contains only saturated vapor at 110° C. (i) Find the initial pressure, in kPa. (ii) Find the work for the process, in kJ. (ii) Find the heat transfer for the process, in kJ.

1a. Numerous professional research organizations have revealed that retirement has brought about or accelerate,

1. Diminishing physical abilities.
2. Viewed health condition
3. Diagnosed medical problems
4. Clinical depression
5. Positive outlook on future well being
6. All of the above
7. A, B, C, and D

1b. To improve one’s long-term retirement outlook one could:

1. Take on a part-time job while looking for full-time employment.
2. Continuously update your job skills
3. Seek additional education and training.
4. All the above.
5. None of the above.

1c. The Retirement that Works

“Just as iron rusts from disuse, even so, does inaction spoil the intellect.” —Leonardo Da Vinci

“Retirement is wonderful If you have two essentials: Much to live for, and Much to live on.” —Anonymous

Research from Rand in 2009 pointed to the fact that people are choosing to work in retirement, and recent indicators point only to an increase in this trend.

What does this study demonstrate?

1. 43% of retirees worked for pay at some point after retirement.
2. 83% percent of Baby Boomers intend to keep working after retirement
3. 14% percent of those currently working say they’ll never retire.
4. A and B only
5. All the above.

1d. Self-indulgence is a poor prescription for a satisfying life, according to Mr. Anthony. What are the reasons for this statement?

1. Sense of identity loss.
2. Social/Relationship challenges.
3. Change/Reduction in mental stimulation.
4. “B” only
5. “A” and “C” only
6. All the above.

1e. The Real Meaning of Work

“An artist was asked what his favorite work was. He thought for a minute or two and then replied, “The next one.”

One of our greatest fears around aging is that our brains will do less at a more sluggish pace. We must treat the brain like the highly sophisticated muscle it is and not allow atrophy to set in because of a lifestyle that taxes it too little.
A. True

B. False

C. Wife’s tale.

Question 2

It is a healthy exercise to determine all the working benefits that you most appreciate.

A. No, this is nuts.

B. Maybe, but I’m not sure.

C. Absolutely!

For each of the following situations, indicate whether the organization should recognize the described contributed services as revenue (offset by a corresponding expense). Briefly justify your response or identify key issues. 1. Nellie Wilson, the noted country-and-western singer, performs a benefit concert for the Save Our Farms Association, a political advocacy group. Wilson, who would normally charge $60,000 per concert, did not accept a fee. 2. Camp Chi-Wan-Da, a summer camp for disadvantaged youth, benefits from the services of four physicians, each of whom spends two weeks at the camp providing medical services to the campers. The doctors receive free room and board but no salary. Camp Association standards require that a camp of Chi-Wan-Da’s size either have a physician on premises or have a physician on call. 3. The Taconic Music Festival, a performing arts association, needed new practice facilities. The architecture firm of Lloyd Wright-designed the facilities for the association without charge and local merchants provided the building materials. All construction work was carried out by community volunteers, only a few of whom had professional experience in the building trades. 4. A neurologist serves on the board of trustees of the Neurological Disease Foundation, an organization that funds clinical research. He was asked to serve because of his expertise in neurological research, and he chairs the committee of the board that selects grant recipients. 5. Daughters of Charity Hospital draw its nursing staff from members of its religious order. The nurses are not paid a salary. Instead, they receive free room and board and a living allowance. The total cost to the hospital is approximately 60 percent of what it would have to pay in salary and benefits on the open market. In addition, the hospital benefits from the services of “candy stripers” and other volunteers who staff the hospital’s gift shop, carry meals to patients and perform a variety of other important functions. Were it not for these volunteers, the hospital would be required to hire additional personnel to carry out many of their duties.

The air temperature is measured every 6 hours for one week. The temperatures are given in the data table. Use the data to complete parts a through e below. _# Temperature 1 45.4 2 56.7 3 49.2 4 45.2 5 43.2 6 53.6 7 48.6 8 43.7 9 54.2 10 53.8 11 50.2 12 44.9 13 53.4 14 57.5 15 56.8 16 49.7 17 41.2 18 58.7 19 55.2 20 42.2 21 49.3 22 57.1 23 58.8 24 41.5 25 40.4 26 51.4 27 55.8 28 45.4

a. Draw a systematic sample consisting of 2​ temperatures, and then calculate the sampling error for the sample. The sampling error for the sample is

B. Draw a systematic sample consisting of 4 temperatures, and then calculate the sampling error for the sample. The sampling error for the sample is ___ F. (Round to two decimal places as needed.)

c. Draw a systematic sample consisting of 7 temperatures, and then calculate the sampling error for the sample. The sampling error for the sample is ___ F. (Round to two decimal places as needed.)

d. Compare the sampling error for parts a, b, and c and explain the reason for the differences. Choose the correct answer below. In general, increasing the sample size has no effect on the sampling error. In general, increasing the sample size makes the magnitude of the sampling error larger. The sample obtained in part b does not follow this trend, however. In general, increasing the sample size makes the magnitude of the sampling error smaller. The sample obtained in part c does not follow this trend, however. In general, increasing the sample size makes the sampling error increasingly negative.

e. What problems might be encountered with the sample obtained in part c? The presence of periodicity in the data might impact the sample obtained in part c. The lack of periodicity in the data might impact the sample obtained in part c. The larger sample obtained in part c might lead to a larger diversion from the da

1. Blood Pressures. Among human females, systolic blood pressure (measured in mmHg) is normally distributed, with a mean of and a standard deviation of 06.3, μ = 1 .9. σ = 8 a. Connie’s blood pressure is 117.4 mmHg. Calculate the z-score for her blood pressure.

b. Mark Connie’s x-value and z-score (as well as the mean) in the correct locations on the graph. c. Interpret the meaning of Connie’s z-score value. 2. Finding raw values from z-scores. California condors are among the largest birds in North America, with wingspans of around 10 feet. Among the California condor population, let’s suppose that wingspans are normally distributed, with a mean of 106 inches, and a standard deviation of 5 inches. The California condor pictured has a wingspan corresponding to a z-score of -0.6. Determine the condor’s actual wingspan in inches; show your work. Place the z-score and x-value for the condor’s wingspan on the graph, along with the mean.

3. Using z-Scores to Compare Data from Different Distributions. Before applying to law school in the US students need to take the LSAT. Before applying to medical school, students need to take the MCAT. Here are some summaries for each (both are normally distributed): the Mean Standard deviation LSAT 51 μ = 1 0 σ = 1 MCAT 5.1 μ = 2 .4 σ = 6 Juwan took both. He scored 172 on the LSAT and 37 on the MCAT. On which the did he do relatively better compared to other test takers? Justify your answer below; show your work and explain your reasoning. LSAT Scores MCAT Scores

Your employer, a mid-sized human resources management company, is considering expansion into related fields, including the acquisition of Temp Force Company, an employment agency that supplies word processor operators and computer programmers to businesses with temporary heavy workloads. Your employer is also considering the purchase of Biggerstaff & McDonald (B&M), a privately held company owned by two friends, each with 5 million shares of stock. B&M currently has free cash flow of $24 million, which is expected to grow at a constant rate of 5%. B&M’s financial statements report short-term investments of $100 million, debt of $200 million, and preferred stock of $50 million. B&M’s weighted average cost of capital (WACC) is 11%. Answer the following questions.

1. What is free cash flow (FCF)? What is the weighted average cost of capital? What is the free cash flow valuation model?

2. Suppose the free cash flow at Time 1 is expected to grow at a constant rate of gL forever. If gL < WACC , what is a formula for the present value of expected free cash flows when discounted at the WACC? If the most recent free cash flow is expected to grow at a constant rate of gL forever (and gL < WACC ), what is a formula for the present value of expected free cash flows when discounted at the WACC? gL= long term growth rate

I don’t mind if the answers are the same as other answers for similar questions. I just need some help understanding so a breakdown of the work would be helpful. Thank you in advance.

1) The average human body contains 5.70 L of blood with a Fe2+ concentration of 2.60×10−5 M . If a person ingests 12.0 mL of 16.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion? (When species combine to produce a coordination complex, the equilibrium constant for the reaction is called is the formation constant, Kf.

For example, the iron(II) ion, Fe2+, can combine with the cyanide ion, CN−, to form the complex [Fe(CN)6]4− according to the equation

Fe2+(aq)+6CN−(aq)⇌[Fe(CN)6]4−(aq)

where Kf=4.21×1045.)

2) Consider a solution that is 1.5×10−2 M in Ba2+and 1.9×10−2 M in Ca2+.

Ksp(BaSO4)=1.07×10−10
Ksp(CaSO4)=7.10×10−5
What minimum concentration of Na2SO4 is required to cause the precipitation of the cation that precipitates first?

3) Calculate the solubility (in grams per 1.00×102mL of solution) of magnesium hydroxide in a solution buffered at pH = 12.
Calculate the solubility (in grams per 1.00×102mL of solution) of magnesium hydroxide in pure water.
How does the solubility of Mg(OH)2 in a buffered solution compare to the solubility of Mg(OH)2 in pure water?

4) Use the appropriate values of Ksp and Kf to find the equilibrium constant for the following reaction:
FeS(s)+6CN−(aq)⇌Fe(CN)4−6(aq)+S2−(aq)

5) A 115.0 −mL sample of a solution that is 3.0×10−3 M  in AgNO3  is mixed with a 225.0 −mL sample of a solution that is 0.11 M in NaCN. A complex ion forms.After the solution reaches equilibrium, what concentration of Ag+(aq) remains?   

In a recent survey, human resource directors were surveyed to find out attitude towards job candidates showing exposure to Ethics courses. In that survey, 36% of the directors identify as female. We also know that of the female directors, 90% think it is important to take an ethics course and 25% of the male directors did NOT think it was important.

a. What is the probability that out of everybody, a director is both female and does think it is important to have an Ethics course?

b. What is the probability that a director is both male and does not think it is important or both of these events occur?

c. What is the probability that a director identifies as female, given that they think an ethics course is unimportant?

Scenario A manufacturing company has been producing and selling industrial product (cannot consumed by human/animal) to its customers in West Malaysia. The company owns only one factory which consists of 5 departments: Storage, Production, Maintenance, Quality Control and Warehouse. During the last few months, the company has been experiencing the rapid increase in manufacturing costs despite of constant in production output. The Management has decided to engage you and your group as a consultant to investigate the problem.

Additional information: Fuctions of the departments:

a) Storage: receiving, storing and preparing raw materials before production.

b) Production: carrying out different stages of processes in converting raw materials to competed product.

c) Maintenance: focusing mainly on the machines/tools/equipment used in Storage and Production departments.

d) Quality Control: checking the completed product to meet customer expectation/quality standard.

e) Warehouse: receiving approved completed product from production department and preparing for shipment

1. Storage department: (The boss asks you: How do you know?)

1. How many types/volume of raw materials have been received/or rejected?
2. How to ensure the quality of the raw materials meet the standard upon receipt?
3. How many/types of raw materials are issued out to production?
4. How much wastes have occurred after the raw materials are being handled before storage?
5. Any delay of shipment?
6. How the waste is kept and disposed
7. How to maintain the quality of raw materials while they are still at storage?
8. Etc, etc

2. Production department: (The boss asks you: How do you know?)

1. How many types of work-in-progress have been completed?
2. How many machines/equipment break down?
3. How many types of raw materials sent from Storage department are defective?
4. How many types of work-in-progress become defective when the whole assembly line break down?
5. How much/many types of work-in-progress become defective due to machine failure and human error?
6. How is the defective work-in-progress disposed?
7. How many types/volume of raw materials sent from Storage department?
8. How is the rejected finished goods (rejected by quality control department) handled?