Java Generics (Javas built-in Stack)

What are the problems?

   class genStck {

        Stack stk = new Stack ();

        public void push(E obj) {           

             push(E);        

        }

        public E pop() {       

Object obj = pop();

        }

   }

    class Output {

        public static void main(String args[]) {

            genStck <> gs = new genStck ();

            push(36);

            System.out.println(pop());

        }

   }

ACME Incorporated has built a factory 1 kilometer upwind of your home. It is a coal power plant that emits carbon monoxide (CO) at a rate of 500 kilograms per second.

Discussion Question 1

What will the concentration of CO be outside your home be if the factory emits CO at the rate given above, your home is 1 km downwind of the factory, the wind speed is 3 meters per second, and the atmospheric stability is slightly stable? Report in units of kg/ m³. To calculate this concentration, use the simplified Gaussian Plume Equation:

C= QU    ×   12πσyσz

Where:

• C is concentration (mg/m³)
• Q is emission rate (kg/second)
• U is wind speed (m/s)
• p is a constant = 3.14159
• s_y is the horizontal dispersion coefficient (m)
• s_z is the vertical dispersion coefficient (m)

We can estimate s_y and s_z as:

s_y = ax^0.893                     s_z = cx^d – f

Where:

• x is the distance downwind (m)
• a, c, d, and f are dependent on atmospheric stability and are given in the table below

Discussion Question 2

Does this concentration violate the 8-hour NAAQS standard for CO (9 ppm)? Note that you need to convert units from kg/m³ to ppm to answer this.

***Hints***

1 kg = 1000 g

The molar mass of CO is 22.01 g/mol

Avogadro’s number is 6.02*10²³ molecules/mol

Assuming standard conditions of T=298 Kelvins and P = 1 atm, there are 2.46 *10²² molecules/L of air

1000L = 1 m³

To get units in ppm, do: (# of molecules of CO)/(# of molecules of air) *10⁶

11. Suppose that a 32M × 16 memory built using 512K × 8 RAM chips and memory is word-addressable.

a) How many RAM chips are necessary?  

b) If we were accessing one full word, how many chips would be involved?

c) How many address bits are needed for each RAM chip?

d) How many banks will this memory have?

e) How many address bits are needed for all of memory?

f) If high-order interleaving is used, where would address 14 (which is E in hex) be located?

g) Repeat Exercise 11f for low-order interleaving.

Encrypt the given plaintext with the key. Built the key matrix (big size). And show how you get each letter ciphertext (you can do that by making shapes and arrows in key matrix).

No need to draw key matric again and again.   

Show all your work. If you just write cipher text and key matric without showing (shapes and arrow on key matrix) that how you get the ciphertext then your marks will be deducted.

key :  alphabets

plaintext :   smartness

You have just taken a job as a consultant for a custom-built motorcycle company. The plant manager says he had read that a synchronized push supply chain strategy was associated with stable demand, and one of the goals for his company was to remove as much demand variability as possible. He recommends using a synchronized push strategy for their customized product. How would you reply to him?

(2-3 paragraphs please) (5-6 sentences each)

• Consider a simple application-level protocol built on top of UDP that allows a client to retrieve a file from a remote server residing at a well-known address. The client first sends a request with a file name, and the server responds with a sequence of data packets containing different parts of the requested file. To ensure reliability and sequenced delivery, client and server use a stop-and-wait protocol. Ignoring the obvious performance issue, do you see a problem with this protocol? Think carefully about the possibility of processes crashing.

You are the engineer who is responsible about renovation of your company headquarters. Two plans were proposed. Plan X involves remodeling the existing headquarters at a cost of $ 2.25 million. The expected useful life of the existing headquarters after remodeling is 25 years and the annual maintenance and operating (M&O) cost would be $126,000 per year. Plan Y involves building a new headquarters and selling the existing one with a net price of $750,000 three years from now. A total of 5 thousands square meter is required for the new headquarters. The cost of the land is estimated to be $366,000 per thousand square meters. The size of the building is 1 thousand square meter and the building will be 10 stories. The construction cost of the building is $150 per square meter and requires 5 years assuming 2 stories are built per year. In addition, the architect and contractor fees are expected to be $420,000. The expected useful life of the new headquarters is 50 years and the annual maintenance and operating (M&O) cost would be $116,000 per year. If the interest rate is i 13% per year, evaluate which plan is better on the basis of: (a) the present worth analysis, and (b) the conventional B/C analysis Case pls with explained procedure. Pa, Pc , PW for plan X , (Pa, Ps, PW, for plan Y) lastly A(C+O) , Delta B and delta B/C

thats what we are supose to answer???

At Bradford Bed and Breakfast, the manager is looking to expand the facility. The following facts are known:

Cost of the expansion $2,200,000

The Manager is paid $99,000 per year. Compensation will not change due to the expansion

Property taxes will increase by $33,000 annually

The expansion will add 10 rooms and it is expected all 10 will be occupied by paying guests

The addition of the 10 guests each day is expected to add $800,000 of revenue annually

A garden and patio that was built last summer at a cost of $75,000 will be removed to make way for the expansion.

Additional cost of staff based on 10 occupied rooms is $260,000 annually

Additional cost of supplies and food based on 10 occupied rooms $80,000 annually

All expenses are expected to increase 3% annually. Due to competition revenue is expected to increase only 2% annually.

The useful life of the expansion is 8 years. Bradford uses a 8% discount rate.

Based on this information determine the following:

a. After the building is expanded, what is the incremental fixed cost incurred annually as a result of the expansion?

b. What are the incremental variable expense incurred annually due to the expansion?

c. What are the sunk costs of the expansion, if any?

d. Create an 8 year proforma cash flow statement for the expansion project (assume there are no income taxes)

e. Calculate the projects NPV and IRR. Should the project be accepted or rejected?

1) At Bradford Bed and Breakfast, the manager is looking to expand the facility. The following facts are known:

Cost of the expansion $2,200,000

The Manager is paid $99,000 per year. Compensation will not change due to the expansion

Property taxes will increase by $33,000 annually

The expansion will add 10 rooms and it is expected all 10 will be occupied by paying guests

The addition of the 10 guests each day is expected to add $800,000 of revenue annually

A garden and patio that was built last summer at a cost of $75,000 will be removed to make way for the expansion.

Additional cost of staff based on 10 occupied rooms is $260,000 annually

Additional cost of supplies and food based on 10 occupied rooms $80,000 annually

All expenses are expected to increase 3% annually. Due to competition revenue is expected to increase only 2% annually.

The useful life of the expansion is 8 years. Bradford uses a 8% discount rate.

Based on this information determine the following:

a. After the building is expanded, what is the incremental fixed cost incurred annually as a result of the expansion?

b. What are the incremental variable expense incurred annually due to the expansion?

c. What are the sunk costs of the expansion, if any?

d. Create an 8 year proforma cash flow statement for the expansion project (assume there are no income taxes)

e. Calculate the projects NPV and IRR. Should the project be accepted or rejected?

Utah Enterprises is considering buying a vacant lot that sells for $1.8 million. If the property is purchased, the company's plan is to spend another $6 million today (t = 0) to build a hotel on the property. The after-tax cash flows from the hotel will depend critically on whether the state imposes a tourism tax in this year's legislative session. If the tax is imposed, the hotel is expected to produce after-tax cash inflows of $810,000 at the end of each of the next 15 years, versus $1,710,000 if the tax is not imposed. The project has a 14% cost of capital. Assume at the outset that the company does not have the option to delay the project. Use decision-tree analysis to answer the following questions. What is the project's expected NPV if the tax is imposed? Negative value, if any, should be indicated by a minus sign. Do not round intermediate calculations. Round your answer to the nearest cent. $ What is the project's expected NPV if the tax is not imposed? Negative value, if any, should be indicated by a minus sign. Do not round intermediate calculations. Round your answer to the nearest cent. $ Given that there is a 50% chance that the tax will be imposed, what is the project's expected NPV if the company proceed with it today? Negative value, if any, should be indicated by a minus sign. Do not round intermediate calculations. Round your answer to the nearest cent. $ Although the company does not have an option to delay construction, it does have the option to abandon the project 1 year from now if the tax is imposed. If it abandons the project, it would sell the complete property 1 year from now at an expected price of $7.8 million. Once the project is abandoned, the company would no longer receive any cash inflows from it. If all cash flows are discounted at 14%, would the existence of this abandonment option affect the company's decision to proceed with the project today? Assume there is no option to abandon or delay the project but that the company has an option to purchase an adjacent property in 1 year at a price of $2 million. If the tourism tax is imposed, then the net present value of developing this property (as of t = 1) is only $300,000 (so it wouldn't make sense to purchase the property for $2 million). However, if the tax is not imposed, then the net present value of the future opportunities from developing the property would be $4 million (as of t = 1). Thus, under this scenario it would make sense to purchase the property for $2 million. Given that cash flows are discounted at 14% and that there's a 50-50 chance the tax will be imposed, how much would the company pay today for the option to purchase this property 1 year from now for $2 million? Negative value, if any, should be indicated by a minus sign. Do not round intermediate calculations Round your answer to the nearest cent. $