1. During and after the commissioning and turn-over process, the design and construction team need to provide the owner with many important documents for the operation of the building. These include all of the following, except:

   		A list of things that the contractor secretly left out of the building to save costs.
   		Operations and maintenance manuals for installed equipment
   		Final construction drawings, typically called "As Built" drawings. These incorporate any minor changes made during construction.
   		Design calculations for building systems.
   		Warranty, test-and-balance, and inspection documents.
   		Building Information Modeling (BIM) data, if included in the contract.
   		Samples and inventories of spare parts and materials used in the construction, to facilitate repairs.

Four holes must be drilled in a casting which forms the housing for an electric motor. The holes may be located and drilled without the aid of a jig by a skilled machinist whose wage rate is $26 per hour. His production time will be 3.5 minutes per housing. A jig could be built at a cost of $600 permitting the holes to be drilled by a machinist at a lower skill level. In this case the lower wage rate would be $19 per hour and the production rate would be four minutes per housing. Which alternative would you recommend if 2,200 housings are to be produced?
b)The total production cost using no jig with a skilled machinist is?

Case studies offer a practical problem for which you supply a written solution. There is not always a specific right or wrong answer to these cases. They are intended to encourage you to review the chapter material and delve deeper into the topics you have learned.

One of the primary reasons networks were built was to facilitate the sharing of information. Organizations want to share files and printers in Windows, Linux,and Mac OS X. However, organizations need to ensure they maintain secure access to shared files. This is often accomplished using user and group accounts, with assigned permissions. These permissions determine who can access the shared resources and what type of access they have.

Consider a GaAs p-n junction diode. The p-type acceptor is Zn, with a dopant concentration of 2 x 10^17 cm^-3 and the n-tpye donor is Si, with a dopant concentration of 5 x 10^16 cm^-3. Working at temp= 300 K.

a) Calculate the Fermi Level in the p-type material. Assume that the hole density is equal to the density of the p-dopant atoms.

b) Performing the same calculation for the n-type material gives a fermi level of 1.363 eV. What is the zero-bias built- in potential at the junction?

c) Calculate the width of the depletion zone for this case

A craftsman builds two kinds of birdhouses, one for wrens and one for bluebirds. Each wren birdhouse takes 3 hours of labor and 4 units of lumber. Each bluebird house requires 2 hours of labor and 10 units of lumber. The craftsman has available 80 hours of labor and 100 units of lumber, and he wants to build at least 6 wren houses. Wren houses profit $8 each and bluebird houses profit $16 each. How many of each kind of birdhouses should be built in order to maximize total profit?  Formulate this as a linear programming problem (i.e., DO NOT solve it.)

Write a program that takes a string from the user, identifies and counts all unique characters in that given string. You are bound to use only built-in string functions where necessary. For identification of unique characters and for counting of the characters make separate functions.

For character identification

Develop a program that takes a string argument, and returns an array containing all unique characters.

For character counting

Develop a program that takes an array returned from above function as an argument along with the given string and return an array containing the total count of each uniquely identified character present in the argument array.

(Dev Cpp +Multifing )

Consider a GaAs p-n junction diode. The p-type acceptor is Zn, with a dopant concentration of 2 x 10^17 cm^-3 and the n-tpye donor is Si, with a dopant concentration of 5 x 10^16 cm^-3. Working at temp= 300 K.

a) Calculate the Fermi Level in the p-type material. Assume that the hole density is equal to the density of the p-dopant atoms.

b) Performing the same calculation for the n-type material gives a fermi level of 1.363 eV. What is the zero-bias built- in potential at the junction?

c) Calculate the width of the depletion zone for this case

Problem 5-20 (Algo) CVP Applications: Break-Even Analysis; Cost Structure; Target Sales [LO5-1, LO5-3, LO5-4, LO5-5, LO5-6, LO5-8]

Northwood Company manufactures basketballs. The company has a ball that sells for $25. At present, the ball is manufactured in a small plant that relies heavily on direct labor workers. Thus, variable expenses are high, totaling $15.00 per ball, of which 60% is direct labor cost.

Last year, the company sold 54,000 of these balls, with the following results:

Required:

1. Compute (a) last year's CM ratio and the break-even point in balls, and (b) the degree of operating leverage at last year’s sales level.

2. Due to an increase in labor rates, the company estimates that next year's variable expenses will increase by $3.00 per ball. If this change takes place and the selling price per ball remains constant at $25.00, what will be next year's CM ratio and the break-even point in balls?

3. Refer to the data in (2) above. If the expected change in variable expenses takes place, how many balls will have to be sold next year to earn the same net operating income, $168,000, as last year?

4. Refer again to the data in (2) above. The president feels that the company must raise the selling price of its basketballs. If Northwood Company wants to maintain the same CM ratio as last year (as computed in requirement 1a), what selling price per ball must it charge next year to cover the increased labor costs?

5. Refer to the original data. The company is discussing the construction of a new, automated manufacturing plant. The new plant would slash variable expenses per ball by 40.00%, but it would cause fixed expenses per year to double. If the new plant is built, what would be the company’s new CM ratio and new break-even point in balls?

6. Refer to the data in (5) above.

a. If the new plant is built, how many balls will have to be sold next year to earn the same net operating income, $168,000, as last year?

b. Assume the new plant is built and that next year the company manufactures and sells 54,000 balls (the same number as sold last year). Prepare a contribution format income statement and compute the degree of operating leverage.

Northwood Company manufactures basketballs. The company has a ball that sells for $32. At present, the ball is manufactured in a small plant that relies heavily on direct labor workers. Thus, variable expenses are high, totaling $22.00 per ball, of which 69% is direct labor cost.

Last year, the company sold 30,000 of these balls, with the following results:

Required:

1. Compute (a) last year's CM ratio and the break-even point in balls, and (b) the degree of operating leverage at last year’s sales level.

CM RATIO = 31.25%

UNIT SALES TO BREAK EVEN = ? BALLS

DEGREE OF OPERATING LEVERAGE = ?

2. Due to an increase in labor rates, the company estimates that next year's variable expenses will increase by $3.00 per ball. If this change takes place and the selling price per ball remains constant at $32.00, what will be next year's CM ratio and the break-even point in balls?

CM RATIO = ?

UNIT OF SALES TO BREAK EVEN = ? BALLS

3. Refer to the data in (2) above. If the expected change in variable expenses takes place, how many balls will have to be sold next year to earn the same net operating income, $90,000, as last year?

NUMBER OF BALLS = ?

4. Refer again to the data in (2) above. The president feels that the company must raise the selling price of its basketballs. If Northwood Company wants to maintain the same CM ratio as last year (as computed in requirement 1a), what selling price per ball must it charge next year to cover the increased labor costs?

SELLING PRICE = ?

5. Refer to the original data. The company is discussing the construction of a new, automated manufacturing plant. The new plant would slash variable expenses per ball by 31.25%, but it would cause fixed expenses per year to double. If the new plant is built, what would be the company’s new CM ratio and new break-even point in balls?

CM RATIO = ? %

UNIT OF SALES TO BREAK EVEN = ? BALLS

6. Refer to the data in (5) above.

a. If the new plant is built, how many balls will have to be sold next year to earn the same net operating income, $90,000, as last year?

NUMBER OF BALLS = ?

b. Assume the new plant is built and that next year the company manufactures and sells 30,000 balls (the same number as sold last year). Prepare a contribution format income statement and Compute the degree of operating leverage.

NORTHWOOD COMPANY

CONTRIBUTION INCOME STATEMENT =