Questions
PC Connection and CDW are two online retailers that compete in an Internet market for digital...

PC Connection and CDW are two online retailers that compete in an Internet market for digital cameras. While the products they sell are similar, the firms attempt to differentiate themselves through their service policies. Over the last couple of months, PC Connection has matched CDW’s price cuts, but has not matched its price increases. Suppose that when PC Connection matches CDW’s price changes, the inverse demand curve for CDW’s cameras is given by P = 1,250 - 2Q. When it does not match price changes, CDW’s inverse demand curve is P = 800 -0.5Q. Based on this information, determine CDW’s inverse demand function over the last couple of months.

P = 800 - 0.5Q if Q ≤ 300

P = 1250 - 2Q if Q ≥ 300

Over what range will changes in marginal cost have no effect on CDW’s profit-maximizing level of output? $ $

In: Economics

1. (2 pts) What things do we need to be measured during the consolidation test? 2....

1. (2 pts) What things do we need to be measured during the consolidation test?

2. (2 pts) What is the difference between primary consolidation and secondary consolidation?

3. (4 pts) Using a semi‐log plot of time versus dial readings describe the procedure that are used to determine the coefficient of consolidation cv?

4. (2 pts) Does the laboratory sample in the consolidation test deform laterally?

5. (2 pts) How many drainage paths are there in a consolidation test?

6. (4 pts) Describe how an oedometer can be used to determine the volumetric changes in a soil sample due to wetting over a range of vertical pressures?

7. (2 pts) What assumption do we make to permit us to compute settlement (vertical changes in ground surface) using the volumetric changes in a soil tested in the consolidation test?

In: Civil Engineering

1. (2 pts) What things do we need to be measured during the consolidation test? 2....

1. (2 pts) What things do we need to be measured during the consolidation test? 2. (2 pts) What is the difference between primary consolidation and secondary consolidation? 3. (4 pts) Using a semi‐log plot of time versus dial readings describe the procedure that are used to determine the coefficient of consolidation cv? 4. (2 pts) Does the laboratory sample in the consolidation test deform laterally? 5. (2 pts) How many drainage paths are there in a consolidation test? 6. (4 pts) Describe how an oedometer can be used to determine the volumetric changes in a soil sample due to wetting over a range of vertical pressures? 7. (2 pts) What assumption do we make to permit us to compute settlement (vertical changes in ground surface) using the volumetric changes in a soil tested in the consolidation test?

In: Civil Engineering

Please answer of the below question in detail and with good example In order to manage...

Please answer of the below question in detail and with good example

In order to manage change and implement change strategies, it is important to avoid implementing irrelevant or random methods and try to focus on a suitable plan of action. Change management is an ongoing process that takes time, expertise, dedication and efforts to implement and run. It requires the involvement of people or staff of the company and may also result in these people being affected by the changes too. Before adopting one of the many effective and popular change management approaches and models, an organization must first figure out why it needs the changes and how will the changes benefit it.

Question 01: Demonstrate the most important major approaches,models, cost and risks of change management

.

Note: Plagiarism is strictly prohibited please give good answer of the above question with good example and please do not copy from internet

In: Operations Management

Demand for oil changes at​ Garcia's Garage has been as​ follows:                                                                   Month Number of Oil...

Demand for oil changes at​ Garcia's Garage has been as​ follows:

                                                                 

Month

Number of Oil Changes

January

33

February

53

March

56

April

58

May

69

June

46

July

62

August

69

a. Use simple linear regression analysis to develop a forecasting model for monthly demand. In this​ application, the dependent​ variable, Y, is monthly demand and the independent​ variable, X, is the month. For​ January, let X=​1; for​ February, let X=​2; and so on.

The forecasting model is given by the equation Y =4 0.86 +3.31X.

​(Enter your responses rounded to two decimal​ places.)

b. Use the model to forecast demand for​ September, October, and November.​ Here,

X=​9, ​10, and​ 11, respectively. ​(Enter your responses rounded to two decimal​ places.)

Month

Forecast for the number of Oil Changes

September

October

November

In: Operations Management

1. Translational motion (Particle in a box) We want to design an experiment about energy quantization...

1. Translational motion (Particle in a box) We want to design an experiment about energy quantization of a hydrogen atom via radiating a light. It is needed to predict which range of light do we have to radiate to excite an electron. Let’s assume the electron feels same potential(V=0) in certain distance(L) from the nucleus of hydrogen. 1. Let’s assume L=5.30x10-11m, me(electron mass)=9.11x10-31kg and ℏ=1.05x10-34m2 kgs-1 .

(a) Make a Hamiltonian for an electron in a hydrogen atom.

(b) Solve the Schrödinger equation using the Hamiltonian you made with applying boundary conditions.

(c) If the electron is in a ground state, which wavelength of light do we need to excite electron to 2nd state? What range the light belongs to (infrared, visible light etc.)?

(d) Which wavelength of light do we need to excite electron from nth state to n+1th state? Does wavelength of light get bigger when n increases?

2. Rotational motion

(a) Show that [?̂ ?,?̂ ?] = ?ℏ?̂ ? , [?̂ ?,?̂ ? ] = ?ℏ?̂ ?, [?̂ ? ,?̂ ?] = ?ℏ?̂ ?.

(b) Show that [?̂2 ,?̂ ? ] = 0, and then, without further calculations, justify the remark that [?̂2 ,?̂ ?] = 0 for all ? = ?, ?, and ?. What does this mean in terms of uncertainty principles?

In: Physics

Applications that do violate the OLS assumptions for inference. All of the examples in this section...

Applications that do violate the OLS assumptions for inference. All of the examples in this section have at least one violation of the OLS assumptions for inference. Begin by identifying the response and explanatory variables. Then, identify which OLS assumption(s) are violated.

  1. Clinical Trial I. A Phase II clinical trial is designed to compare the number of patients getting relief at different dose levels. 100 patients get dose A, 100 get dose B, and 100 get dose C.
  2. Canoes and zip codes. For each of over 27,000 overnight permits for the Boundary Water Canoe area, the zip code for the group leader has been translated to the distance traveled and socioeconomic data. This data is used to create a model for the number of trips made per zip code.
  3. Clinical Trial II. A randomized clinical trial investigated postnatal depression and the use of an estrogen patch. Patients were randomly assigned to either use the patch or not. Depression scores were recorded on 6 different visits.
  4. Elephant mating. Researchers are interested in how elephant age affects mating patterns among males. In particular, do older elephants have greater mating success, and is there an optimal age for mating among males? Data collected includes, for each elephant, age and number of matings in a given year.

In: Statistics and Probability

A cylinder of 10-m-high, and a cross-sectional area of 0.1 m2 , has a piston (that...

A cylinder of 10-m-high, and a cross-sectional area of 0.1 m2 , has a piston (that is free to move) assumed to have negligible mass and thickness (see Figure 1(a)). Above the piston there is a liquid that is incompressible (constant density and volume) with ρliquid = 1000 kg/m3 . Below the piston there is air at 300 K, with a volume of 0.3 m3 . Assume air is an ideal gas (Ru =8.314 J.mol-1 .K-1 ; Mair = 28.9628 g/mol) Use P0 = 101.325 kPa and g = 9.807 m/s2 Find the following: a- The mass (in kg) of the liquid in the cylinder. b- The initial pressure of the air compartment. c- The initial mass of air (in kg). d- The initial internal energy of air. Another negligible mass and thickness piston is placed on top of the cylinder (see Figure 1b) and pushed down by 0.1 m to compress the air. The process is isothermal. The liquid is incompressible (its volume and phase do not change). Calculate: e- The final volume of air. f- The final temperature of air when thermal equilibrium is obtained. g- The final pressure of air. h- Does the internal energy of air change? i- The boundary work used to lower the piston located on top of the air. j- The total heat transfer outside of the piston from the air compartment.

In: Other

1.Write a Java program that prompts the user for a month and day and then prints...

1.Write a Java program that prompts the user for a month and day and then prints the season determined by the following rules.

If an invalid value of month (<1 or >12) or invalid day is input, the program should display an error message and stop. Notice that whether the day is invalid depends on the month! You may assume that the user will never enter anything other than integers (no random strings or floats will be tested.)

Tips: Break this problem down into smaller pieces. This is always good practice when tackling a larger problem. Break it up into pieces that you can test individually and work on one piece at a time. You might try writing the pseudo-code for each piece.

First, see if you can get a month and ensure that it is valid. Test out only this piece of functionality before continuing. Make sure you test not only the good and bad cases, but also for boundary cases. For example, try entering -5, 0, 1, 4, 12, 13, and 56.

Next, see if you can get a day and ensure that it is valid. Test this piece too.

Finally, use the now-valid month and day to determine which season it is in. If you tested the earlier pieces, you will now know that any bugs are due to a problem here.

In: Computer Science

.1 Individuals’ Predisposition toward Change How people react to change depends a lot on how they...

.1 Individuals’ Predisposition toward Change How people react to change depends a lot on how they learned to handle change and ambiguity as children. One person’s parents may have been patient, flexible, and understanding, and from the time the child was weaned she may have learned there were positive compensations for the loss of immediate gratification. Thus, she will associate making changes with love and approval. Another person’s parents may have been unreasonable and unyielding, forcing him to do things (piano lessons, for example) that he didn’t want to do. Thus, he will be distrustful of making changes because he will associate them with demands for compliance.134

2. Surprise and Fear of the Unknown When radically different changes are introduced without warning—for example, without any official announcements—the office rumor mill will go into high gear, and affected employees will become fearful of the implications of the changes. It is essential for change leaders to explain the rationale for change, to educate people about the personal implications of change, and to garner commitment to change.135

3. Climate of Mistrust Trust involves reciprocal faith in others’ intentions and behavior. Mistrust encourages secrecy, which causes deeper mistrust, putting even well-conceived changes at risk of failure. Managers who trust their employees make the change process an open, honest, and participative affair. All told, employees who feel fairly treated by managers during change are less likely to resist.136

4. Fear of Failure Intimidating changes on the job can cause employees to doubt their capabilities. Self-doubt erodes self-confidence and cripples personal growth and development.

5. Loss of Status or Job Security Administrative and technological changes that threaten to alter power bases or eliminate jobs—as often happens during corporate restructurings that threaten middle-management jobs—generally trigger strong resistance.

6. Peer Pressure Even people who are not themselves directly affected by impending changes may actively resist in order to protect the interests of their friends and coworkers.

7. Disruption of Cultural Traditions or Group Relationships Whenever individuals are transferred, promoted, or reassigned, it can disrupt existing cultural and group relationships. Example: Traditionally, Sony Corp. promoted insiders to new positions. When an outsider, Howard Stringer, was named as the next chairman and CEO and six corporate officers were asked to resign, creating a majority board of foreigners, the former CEO, Nobuyuki Idei, worried the moves might engender strong employee resistance.137

8. Personality Conflicts Just as a friend can get away with telling us something we would resent hearing from an adversary, the personalities of change agents can breed resistance.

9. Lack of Tact or Poor Timing Introducing changes in an insensitive manner or at an awkward time can create employee resistance. Employees are more apt to accept changes when managers effectively explain their value, as, for example, in demonstrating their strategic purpose to the organization.

10. Nonreinforcing Reward Systems Employees are likely to resist when they can’t see any positive rewards from proposed changes, as, for example, when one is asked to work longer hours without additional compensation. Where do you stand on change? Do you tend to accept and embrace change, or do you have tendencies to resist it? The following self-assessment will provide feedback on your attitudes toward change. If your scores indicate resistance, you should consider what can be done to move your attitudes in a more positive direction. ● Then create an initial posting addressing two of the ten reasons on the list. Give examples of times when you have seen these two reasons in action, and tell about the resulting outcome. What would you suggest to make things work out for the better?

  • Give examples of times when you have seen these two reasons in action, and tell about the resulting outcome?
  • What would you suggest to make things work out for the better?

In: Operations Management