A car with inertia 1500kg is driving down a one-way street at 15 m. An unobservant s

driver of a 2000kg pickup truck is driving the wrong way down the street at −10 ms , and runs head on into the car. (Assuming the system consists of the car and the truck only)

a) What is the velocity of the car after the collision if the velocity of the truck is 5 ms ?

b) What is the coefficient of restitution for this collision? What type of collision is this?

c) What is the velocity of center of mass of the system?

d) Find the center-of-mass kinetic energy for the system.

e) What is convertible kinetic energy of the system before the collision?

6. f) What is the minimum amount of energy required to conserve the momentum of the system?

7. g) What is the total kinetic energy of the system before the collision?

8. h) What is the total kinetic energy of the system after the collision?

i) What is the change in kinetic energy of the system due to this collision? Since energy cannot be destroyed, explain what happens to this energy.

Decision Making Questions Please return answers before Oct. 30th. 1. A selected Forecast Model showed the lowest MAD at the beginning of the year with $60.5. If the following three quarters reflected the following MAD: Q2: $60.2 Q3: $75.4 Q4: $78.9 Would you stay using this model for the next year? Explain your answer. 2. The EOQ of the product you are purchasing is 20,350units. The supplier runs 40,000units per lot. He wants you to buy all of them since you are the only buyer of this product. What will you do and explain? 3. A six sigma project was done and it was found that the temperature was affecting the production rate. The initial project measured the production rate trend to identify the potential reasons of concern. If you has to decide which parameter you need to control,(Temperature or the production rate), explain which one and why?

PLEASE ANSWER USING INSTRUCTION GIVEN

1. When Air Canada emerged from bankruptcy protection in 2004, its top management decided to replace some of its older planes with new ones. In particular, several relatively small Embraer and Bombardier planes (with fewer than 90 seats) and several large Boeing 777 and 787 (with more than 200 seats) were ordered. These are much fuel efficient than the planes they replace.

  However, Air Canada operations are still not as low as WestJet’s. An available Seat Mile costs Air Canada 16-17¢ whereas it costs WestJet 11-12¢. Recall that WestJet is non-unionized, runs only one type of plane (Boeing 737 which seats 100-150 passengers), and is financially stronger.

1. Discuss five pros and cons of Air Canada’s decision.
2. Identify five current trends in operation management and discuss how Air Canada can use them to improve their operations.

You travel to one of the shops where you park your car beside a Ferrari Testa Rossa in the store car park, and
enter the store to find an immaculately dressed lady who runs the store on her own. The dresses sold in the
store retail for several thousand dollars an item. On chatting to the lady, you discover the Ferrari is her
“getting to work” car. You note that there is no cash register and are told that given the value of the dresses,
only a few sales a day are processed, and these are either by EFTPOS using a single machine, or cash, which
is immediately banked. Customers are given handwritten detailed receipts, which do not carry a serial
number.
Required:
Given the above situation critically analyse the sales process and describe in detail what management
assertions may be at risk relative to sales. Give full reasons for your choices. In your answer explain what
management assertions are.

Write a Java program (single file/class) whose filename must be Numbers.java.

The program reads a list of integers from use input and has the following methods:

1. min - Finds the smallest integer in the list.

2. max- Finds the largest integer in the list.

3. average - Computes the average of all the numbers.

4. main - method prompts the user for the inputs and ends when the user enter Q or q and then neatly outputs the entire list of entries on one line and then the minimum, maximum, and average. values on separate lines with nice readable labels.

5. Make sure your code runs without error and handles bad inputs and 0 and negative numbers are valid.

6. Followed instructions and include to get full credit file must include your name, date, class and Javadoc code comments for each and every method as well as logic comments.

Processor/CPU Management I Five processes, J1, J2, J3, J4 and J5. arrive in the Ready Queue in sequence, one second apart. Each job takes 1 millisecond to load into memory. Each job will take 10, 2, 3, 1, 5 seconds to run respectively.

II In a single user dedicated system such as a personal computer, it is possible for the user to detect if a program is in an infinite loop and stop it manually. Another solution is for the system to terminate an infinite loop automatically. But there are legitimate situations where a program runs for a very long time. Can you propose a way to terminate a program in an infinite loop automatically? Maybe not detecting all of them but at least some of them? Hint: Discuss the potential for those programs that 1. Consume lots of resources (what kind of resources?) in an infinite loop. What happens when resources are consumed ? and 2. Consume no resource except looping needlessly.

Write a Java program (single file/class) whose filename must be Numbers.java. The program reads a list of integers from use input and has the following methods: 1. min - Finds the smallest integer in the list. 2. max- Finds the largest integer in the list. 3. average - Computes the average of all the numbers. 4. main - method prompts the user for the inputs and ends when the user enter Q or q and then neatly outputs the entire list of entries on one line and then the minimum, maximum, and average. values on separate lines with nice readable labels. 5. Make sure your code runs without error and handles bad inputs and 0 and negative numbers are valid. 6. Followed instructions and include to get full credit file must include your name, date, class and Javadoc code comments for each and every method as well as logic comments.m

Match a student number: Write a function MatchStudentNumber that takes a student number from the StudentNumber column in the reference table and determine if there is a match with a student number from the StudentNumber column in the second table. The output is a logical flag that is true if at least one match was found, and integer array that points to rows in table where a match occurred. Note that the function should find all matches.

function [iflag, matchPosition] =MatchStudentNumber(studentnumber, tableToFindRecord)

% Inputs: studentnumber: studentname from StudentNumber column in the reference table

% tableToFindRecord: table of any size

% Outputs: iflag: logical flag that is true if at least one match was found, and

% matchPosition: integer array that points to rows in table where matches occurred.

%MATLAB

end

Consider an LB broth flask into which two E. coli strains are inoculated. Strain "A" is wild-type, with g = 22 min at 37oC, and 45 min at 27oC. Strain "B" has a temperature-sensitive mutation, such that g = 52 min at 37oC, but at 27oC g = 44 min.We inoculate equal amounts of cells (1 ml of each starter culture whose population is 1 x 106 cfu/ml) into each of two separate 1 liter volumes of LB broth at time = 0. One of the flasks is incubated at 37oC, one at 27oC.Assuming constant exponential growth (i.e. no lag phase, and no exhaustion of nutrients), answer each of these questions:

1) After 6 hours of growth, what is the final concentration of each strain in each flask?

2) What fraction of the total population is Strain A and Strain B in each flask?

Jack holds a portfolio with the following securities:

Security Investment Return

Stock A 723,653 -9.7%

Stock B 911,527 11.3%

Stock C 219,146 9.1%

Calculate the expected return of portfolio. Round the answers to two decimal places in percentage form.

Genetic Insights Co. purchases an asset for $19,779. This asset qualifies as a seven-year recovery asset under MACRS. The seven-year fixed depreciation percentages for years 1,2,3,4,5, and 6 are 14.29%, 24.49%, 17.49%, 12.49%, 8.93% and 8.93%, respectively. Genetic Insights has a tax rate of 30%. The asset is sold at the end of six years for $4,546.

Calculate after-tax cash flow at disposal. Round the answer to two decimals.