Given an acid with a concentration of 0.4 M in a 1 liter solution, answer the following questions:

• What is the pH if pka = 4.76

• What is the pH after the addition of 0.2 mol NaOH (pka =4.76)?

• What is the ka of a solution with 0.65 M HA and 0.44 M A- (pH=6.0)

A factorial experiment was designed to test for any significant differences in the time needed to perform English to foreign language translations with two computerized language translators. Because the type of language translated was also considered a significant factor, translations were made with both systems for three different languages: Spanish, French, and German. Use the following data for translation time in hours.

Test for any significant differences due to language translator system (Factor A), type of language (Factor B), and interaction. Use a= .05.

Complete the following ANOVA table (to 2 decimals, if necessary). Round your p-value to 4 decimal places.

A Saskatchewan farm machinery manufacturing company has developed a prototype of two machinery models (A and B). The manufacturer wishes to select one of these machines for further manufacturing. Also the manufacturer is under no obligation to select any of these 2 machines. The company has hired you to make a recommendation to the manufacturer not eh selection of the best alternative. In further discussion with the manufacturer you select the following attributes of the decision problem: a) manufacturers major motivation in selecting the best farm machinery in economic-improve the level of earnings for the company b)major uncertainty facing the selection process is future markets. Given above attributes, you decide to undertake a market survey, which resulted in 3 possible types of markets: Bouyant, steady state and Depressed. You also estimated the there are 3 types of markets prevail 50:20:30 percent, respectively, of the time in the future. You also estimated the net revenues of the company from sales of 2 types of machinery in thousands of dollars shown below:

Using a decision three model, provide your recommendation to the farm machinery manufacturing company.

Hi-Tek Manufacturing, Inc., makes two types of industrial component parts—the B300 and the T500. An absorption costing income statement for the most recent period is shown:

Hi-Tek produced and sold 60,000 units of B300 at a price of $20 per unit and 12,600 units of T500 at a price of $40 per unit. The company’s traditional cost system allocates manufacturing overhead to products using a plantwide overhead rate and direct labor dollars as the allocation base. Additional information relating to the company’s two product lines is shown below:

The company has created an activity-based costing system to evaluate the profitability of its products. Hi-Tek’s ABC implementation team concluded that $55,000 and $101,000 of the company’s advertising expenses could be directly traced to B300 and T500, respectively. The remainder of the selling and administrative expenses was organization-sustaining in nature. The ABC team also distributed the company’s manufacturing overhead to four activities as shown below:

Required:

1. Compute the product margins for the B300 and T500 under the company’s traditional costing system.

2. Compute the product margins for B300 and T500 under the activity-based costing system.

3. Prepare a quantitative comparison of the traditional and activity-based cost assignments.

If blackmouth shiner fish populations suddenly started to increase in the Florida everglades, what biotic factor could be causing it?

this there any way to shorten the line of  code. Right now it about 300 line of code is there anyway to shorten it to 200 or so line of code?

import java.awt.*;
import java.awt.Color;
import java.awt.Desktop;
import java.awt.Font;
import java.awt.event.*;
import java.net.URL;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import javax.swing.JCheckBox;
import javax.swing.JColorChooser;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.KeyStroke;
//MyMenuFrame will use Jframe with actionlistener
class MyMenuFrame extends JFrame implements ActionListener{

//creating the main menu items
JMenu menuEdit = new JMenu("Edit");
JMenu menuPrint = new JMenu("Print");
JMenu mnFile = new JMenu("File");
JMenu menuHelp = new JMenu("Help");

//creating the submenu items here because we are gonna use these across the code
JRadioButton subMenuItem1 = new JRadioButton("Times New Roman");
JRadioButton subMenuItem2 = new JRadioButton("Arial");
JRadioButton subMenuItem3 = new JRadioButton("Serif");
JCheckBox subMenuItem4 = new JCheckBox("Bold");
JCheckBox subMenuItem5 = new JCheckBox("Italic");

//provide scrollable view of a component
JScrollPane scrollPane;

//creating notePadArea for notepad to input the text
JTextArea notePadArea;

public MyMenuFrame() {

//setting the border layout for JFrame
this.setLayout(new BorderLayout());

// create menu bar named menuBar

JMenuBar menuBar = new JMenuBar();

this.setJMenuBar(menuBar);//adding the menubar to JFrame

// create File menu
mnFile.setMnemonic(KeyEvent.VK_F);//Alt+F

menuBar.add(mnFile);//adding the menufile

// create Open menu item

JMenuItem mntmOpen = new JMenuItem("Open");//creating the Open menu

mntmOpen.setMnemonic(KeyEvent.VK_O);//Alt+O command

mntmOpen.setActionCommand("open");//when the command equals to 'open' then the corresponding action will be performed

mntmOpen.setAccelerator(KeyStroke.getKeyStroke('O', KeyEvent.CTRL_DOWN_MASK));//respond when user clicks Ctrl+O

mntmOpen.addActionListener(this);//adding actionLister to the Menu Option Open

// create Save menu item

JMenuItem mntmSave = new JMenuItem("Save");//creating the Save menu

mntmSave.setMnemonic(KeyEvent.VK_S);//Alt+S command

mntmSave.setActionCommand("save");//when the command equals to 'save' then the corresponding action will be performed

mntmSave.setAccelerator(KeyStroke.getKeyStroke('S', KeyEvent.CTRL_DOWN_MASK));//respond when user clicks Ctrl+S

mntmSave.addActionListener(this);//adding actionLister to the Menu Option Save

// create Exit menu item

JMenuItem mntmExit = new JMenuItem("Exit");//creating the Exit menu

mntmExit.setMnemonic(KeyEvent.VK_X);//Alt+X command

mntmExit.setActionCommand("exit");//when the command equals to 'exit' then the corresponding action will be performed

mntmExit.setAccelerator(KeyStroke.getKeyStroke('X', KeyEvent.CTRL_DOWN_MASK));//respond when user clicks Ctrl+X

mntmExit.addActionListener(this);//adding actionLister to the Menu Option Exit

// add open, save and exit menu to menu-bar

mnFile.add(mntmOpen);

mnFile.addSeparator();//adding separator between open and save

mnFile.add(mntmSave);

mnFile.addSeparator();//adding separator between save and exit

mnFile.add(mntmExit);

// create Edit menu

menuEdit.setMnemonic(KeyEvent.VK_E);//creating shortcut menu when user press Alt+E

menuBar.add(menuEdit);//adding the Edit to the menubar

JMenu submenu1 = new JMenu("Color");//creating the new menu which comes under Edit
submenu1.setMnemonic(KeyEvent.VK_C);//creating shortcut menu when user press Alt+C
JMenuItem menuItem0 = new JMenuItem("Change Color");//creating submenu item called change color
menuItem0.setAccelerator(KeyStroke.getKeyStroke('C', KeyEvent.CTRL_DOWN_MASK));//it responds when user click Ctrl+C
menuItem0.setActionCommand("color");//setting the command used to call the correcponding action when user click this
menuItem0.addActionListener(this);//adding actionlistener
submenu1.add(menuItem0);//adding this menu item to submenu
menuEdit.add(submenu1);//adding this submenu to editmenu
menuEdit.addSeparator();//creating separator between Color and Font

ActionListener sm1 = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
subMenuItem1.setSelected(true);
subMenuItem2.setSelected(false);
subMenuItem3.setSelected(false);
notePadArea.setFont(new Font("Times New Roman", Font.PLAIN, 20));
}
};

ActionListener sm2 = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
subMenuItem2.setSelected(true);
subMenuItem1.setSelected(false);
subMenuItem3.setSelected(false);
notePadArea.setFont(new Font("Arial", Font.PLAIN, 20));

}
};

ActionListener sm3 = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
subMenuItem3.setSelected(true);
subMenuItem2.setSelected(false);
subMenuItem1.setSelected(false);
notePadArea.setFont(new Font("Serif", Font.PLAIN, 20));

}
};

JMenu submenu = new JMenu("Font");//creating the new menu which comes under Edit
submenu.setMnemonic(KeyEvent.VK_F);//creating shortcut menu when user press Alt+F
subMenuItem1.setMnemonic(KeyEvent.VK_T);//creating shortcut menu when user press Alt+T for Times New Roman
subMenuItem1.setActionCommand("times_new_roman");//setting the command used to call the correcponding action when user click this
subMenuItem1.addActionListener(sm1);//adding actionlistener
submenu.add(subMenuItem1);//adding to the submenu

subMenuItem2.setMnemonic(KeyEvent.VK_A);//creating shortcut key Alt+A
subMenuItem2.setActionCommand("arial");//respond when the command equals to arial
subMenuItem2.addActionListener(sm2);//adding action listener
submenu.add(subMenuItem2);//adding it to the submenu

subMenuItem3.setMnemonic(KeyEvent.VK_S);
subMenuItem3.setActionCommand("serif");
subMenuItem3.addActionListener(sm3);
submenu.add(subMenuItem3);

submenu.addSeparator();

subMenuItem4.setMnemonic(KeyEvent.VK_B);
subMenuItem4.setActionCommand("bold");
subMenuItem4.addActionListener(this);
submenu.add(subMenuItem4);

subMenuItem5.setMnemonic(KeyEvent.VK_I);
subMenuItem5.setActionCommand("italic");
subMenuItem5.addActionListener(this);
submenu.add(subMenuItem5);

menuEdit.add(submenu);

// create Print menu

menuPrint.setMnemonic(KeyEvent.VK_P);

menuBar.add(menuPrint);

JMenuItem menuItemPrint = new JMenuItem("Send To Printer");

menuItemPrint.setAccelerator(KeyStroke.getKeyStroke('P', KeyEvent.CTRL_DOWN_MASK));

menuItemPrint.setActionCommand("print");

menuItemPrint.addActionListener(this);

menuPrint.add(menuItemPrint);

// create Help menu

menuHelp.setMnemonic(KeyEvent.VK_H);

menuBar.add(menuHelp);

JMenuItem menuItemHelp = new JMenuItem("About");

menuItemHelp.setAccelerator(KeyStroke.getKeyStroke('A', KeyEvent.CTRL_DOWN_MASK));

menuItemHelp.setActionCommand("about");
menuItemHelp.addActionListener(this);

JMenuItem menuItemVisitHomePage = new JMenuItem("Visit Home Page");

menuItemVisitHomePage.setAccelerator(KeyStroke.getKeyStroke('V', KeyEvent.CTRL_DOWN_MASK));

menuItemVisitHomePage.setActionCommand("visithomepage");
menuItemVisitHomePage.addActionListener(this);

menuHelp.add(menuItemHelp);

menuHelp.addSeparator();

menuHelp.add(menuItemVisitHomePage);

notePadArea = new JTextArea();

// set no word wrap

notePadArea.setWrapStyleWord(false);

// create scrollable pane

scrollPane = new JScrollPane(notePadArea, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS , JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);

this.add(scrollPane,BorderLayout.CENTER);

}

@Override

public void actionPerformed(ActionEvent e) {

if(e.getActionCommand().equals("exit")) {

System.exit(0);

}else if (e.getActionCommand().equals("open")) {

JFileChooser file = new JFileChooser();

String fileName = "";//initial filename was empty

// show open file dialog

if (file.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) {

fileName = file.getSelectedFile().getAbsolutePath();

} else {

return;

}

try(BufferedReader bufferedReader = new BufferedReader(new FileReader(fileName));) {

// load file content into text area

StringBuffer stringBuffer = new StringBuffer();//creating a string buffer for reading data from file

String lines = "";//for reading the lines from the selecting file

while((lines = bufferedReader.readLine() ) != null) {//it'll read untill the file ends

stringBuffer.append(lines).append("\n");//for every line read insert new line in stringBuffer

}

bufferedReader.close();//after reading of file done, the bufferedReader will be close

notePadArea.setText(stringBuffer.toString());//converting the read text to string and inserting this text into textArea

} catch (Exception error1) {//if any exception occures

System.out.println(error1.toString());//convert the expection into string and print it

}

} else if (e.getActionCommand().equals("save")) {//if the user click the save command then the file will gonna saved

JFileChooser file = new JFileChooser();//creating the file chooser

String fileName = "";//initial file name is empty

// show open file dialog

if (file.showSaveDialog(this) == JFileChooser.APPROVE_OPTION) {//if the user select file and clicks OK button

fileName = file.getSelectedFile().getAbsolutePath();

} else {//other wise will be closed
return;
}

try(BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(fileName));) {

// write editor's content to selected file.

bufferedWriter.write(notePadArea.getText());//get the text entered in textarea
bufferedWriter.flush();//clear the writer
} catch(Exception ex1) {}

} else if (e.getActionCommand().equals("color")) {

Color select_color = JColorChooser.showDialog(this, "Select a color", Color.RED);
notePadArea.setForeground(select_color);

} else if (e.getActionCommand().equals("times_new_roman")) {
if(subMenuItem1.isSelected())
notePadArea.setFont(new Font("Times New Roman", Font.PLAIN, 20));

} else if (e.getActionCommand().equals("arial")) {
if(subMenuItem2.isSelected())
notePadArea.setFont(new Font("Arial", Font.PLAIN, 20));

} else if (e.getActionCommand().equals("serif")) {
if(subMenuItem3.isSelected())
notePadArea.setFont(new Font("Serif", Font.PLAIN, 20));

} else if (e.getActionCommand().equals("bold")) {
if(subMenuItem4.isSelected()){
if(subMenuItem5.isSelected()){
notePadArea.setFont(new Font("Serif", Font.BOLD+Font.ITALIC, 20));
}else{
notePadArea.setFont(new Font("Serif", Font.BOLD, 20));
}
}else{
if(!subMenuItem5.isSelected())
notePadArea.setFont(new Font("Serif", Font.PLAIN, 20));
}

} else if (e.getActionCommand().equals("italic")) {

if(subMenuItem5.isSelected()){
if(subMenuItem4.isSelected()){
notePadArea.setFont(new Font("Serif", Font.BOLD+Font.ITALIC, 20));
}else{
notePadArea.setFont(new Font("Serif", Font.ITALIC, 20));
}
}else{
if(!subMenuItem4.isSelected())
notePadArea.setFont(new Font("Serif", Font.PLAIN, 20));
}

} else if (e.getActionCommand().equals("print")) {

int output = JOptionPane.showConfirmDialog(this, "Do you want to print the File","Confirmation", JOptionPane.YES_NO_OPTION);
if(output==0){
JOptionPane.showMessageDialog(this, "The file is successfully printed","Confirmation", JOptionPane.INFORMATION_MESSAGE);
}
} else if (e.getActionCommand().equals("changecolor")){
System.out.println("Color clicked");
}
else if (e.getActionCommand().equals("about")) {

JOptionPane.showMessageDialog(this, "This software is developed in 2019\nVersion is 1.0","About", JOptionPane.INFORMATION_MESSAGE);

} else if (e.getActionCommand().equals("visithomepage")) {

openWebpage("http://www.microsoft.com");

}

}

private void openWebpage (String urlString) {

try {

Desktop.getDesktop().browse(new URL(urlString).toURI());

}

catch (Exception e) {

e.printStackTrace();
}
}
}

import javax.swing.JFrame;
public class MyMenuFrameTest {
public static void main(String[] args) {
MyMenuFrame frame = new MyMenuFrame();
frame.setTitle("MyNotepad");
//for the title of the box
frame.setSize(600, 400);
//for the size of the box
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setVisible(true);
}
}

TCP Wireshark Lab – Working with a remote server.  You will go through the steps below, use your captured wireshark file and the provided wireshark file (on D2L) to answer the questions.  When you have finished the lab you will submit the following:

1. This document with your answers provided in the appropriate places.  
2. Your wireshark capture file as a zipped file.  

STEPS:

1. Start up your web browser. Go thehttp://gaia.cs.umass.edu/wireshark-labs/alice.txtand retrieve an ASCII copy of Alice in Wonderland. Store this file somewhere on your computer.

2. Next go to http://gaia.cs.umass.edu/wireshark-labs/TCP-wireshark-file1.html.

3. Use the Browse button in this form to enter the name of the file (full path name) on your computer containing Alice in Wonderland (or do so manually). Don’t press the “Upload alice.txt file” button, yet!

4. Now start up Wireshark and begin packet capture (Capture->Start) and then press OK on the Wireshark Packet Capture Options screen (we’ll not need to select any options here).

5. Returning to your browser, press the “Upload alice.txt file” button to upload the file to the gaia.cs.umass.edu server. Once the file has been uploaded, a short congratulations message will be displayed in your browser window.

6. Stop Wireshark packet capture and save your capture file. Your Wireshark window should look similar to the window shown below.

———————————————————————————————————————————————————————-

PART 2: A first Look At the Captured Trace  

Use the provided online capture (uploaded in D2L as a zip file – you will need to extract it before opening in Wireshark) to answer the following:

1. What is the IP address and TCP port number used by the client computer (source) that is transferring the file to gaia.cs.umass.edu? To answer this question, it’s probably easiest to select an HTTP message and explore the details of the TCP packet used to carry this HTTP message, using the “details of the selected packet header window”.  (5 pts answer, 5 pts explanation of which packet # you used to answer this question)

2. What is the IP address of gaia.cs.umass.edu? On what port number is it sending and receiving TCP segments for this connection? (5 pts for answer, 5 pts for explanation of which packet # )

Use your own Captureto answer the following:

3. What is the IP address and TCP port number used by your client computer (source) to transfer the file to gaia.cs.umass.edu? (10 pts – with screenshot of your capture)

———————————————————————————————————————————————————————-

PART 3: TCP Basics

4. What is the sequence number of the TCP SYN segment that is used to initiate the TCP connection between the client computer and gaia.cs.umass.edu? What is it in the segment that identifies the segment as a SYN segment? (5 pts for answer, 5 pts for packet #)

5. What is the sequence number of the SYNACK segment sent by gaia.cs.umass.edu to the client computer in reply to the SYN? What is the value of the Acknowledgement field in the SYNACK segment? How did gaia.cs.umass.edu determine that value? What is it in the segment that identifies the segment as a SYNACK segment? (5 pts for answer , 5 pts for screenshot of highlighted packet)

6. What is the sequence number of the TCP segment containing the HTTP POST command? Note that in order to find the POST command, you’ll need to dig into the packet content field at the bottom of the Wireshark window, looking for a segment with a “POST” within its DATA field. (5 pts for answer, 5 pts for screenshot of highlighted packet)

7. Consider the TCP segment containing the HTTP POST as the first segment in the TCP connection. What are the sequence numbers of the first six segments in the TCP connection (including the segment containing the HTTP POST)? At what time was each segment sent? When was the ACK for each segment received? (10 pts)

8. What is the length of each of the first six TCP segments? (10 pts)

9. What is the minimum amount of available buffer space advertised at the received for the entire trace? Does the lack of receiver buffer space ever throttle the sender? (10 pts)

10. Are there any retransmitted segments in the trace file? What did you check for (in the trace) in order to answer this question? (10 pts)

———————————————————————————————————————————————————————-

PART 4: TCP Congestion Control In Action

STEPS:

1. Select a TCP segment in the Wireshark’s “listing of captured-packets” window. Then select the menu : Statistics->TCP Stream Graph-> Time-SequenceGraph(Stevens).  

QUESTIONS:

Answer Question 11 Using the provided Capture (Bonus: 10 pts)

11. Use the Time-Sequence-Graph(Stevens) plotting tool to view the sequence number versus time plot of segments being sent from the client to the gaia.cs.umass.edu server. Can you identify where TCP’s slowstart phase begins and ends, and where congestion avoidance takes over? Insert a screenshot of your Time-Sequence-Graph and explain your answer.

In JAVA:

Create a circular doubly linked list. It need not be generic. Implement addToStart and addToEnd methods, as well as printList method. Implement delete(Node n) method that deletes a node n, if n is in the linked list. Make no assumptions about n. Test your linked list.

1. What is exception handling?

2. Name a few common types of exceptions.

Subject: Computer Algorithms

3) Design an efficient algorithm that sorts an array containing 2 sorted sets of numbers, such as A=[3,4,7,9,13,1,5,6,8] (Note that [3,4,7,9,13] and [1,5,6,8] are both sorted, but A is not). Your algorithm declaration should look like this:

MYSORT(A,p,n)

where A is the input array, p is the index to the first element of the second set of numbers, and n is the length of array A.

Calculate the asymptotic running time and space of you algorithm.

Reference book

Introduction to Algorithms 3rd edition

Ebook URL:

http://ce.bonabu.ac.ir/uploads/30/CMS/user/file/115/EBook/Introduction.to.Algorithms.3rd.Edition.Sep.2010.pdf

X company has the following information concerning the 2 products that it sells.

The company sells 12 units of Product 2 for each unit of Product 1 that it sells. How many units of Product 2 must it sell to breakeven if fixed costs total $75,000?

Very short pulses of high-intensity laser beams are used to repair detached portions of the retina of the eye. The brief pulses of energy absorbed by the retina welds the detached portion back into place. In one such procedure, a laser beam has a wavelength of 810 nmand delivers 250 mW of power spread over a circular spot 510 μm in diameter. The vitreous humor (the transparent fluid that fills most of the eye) has an index of refraction of 1.34.

Part A

If the laser pulses are each 1.50 ms long, how much energy is delivered to the retina with each pulse?

Express your answer with the appropriate units.

Part B

What average pressure would the pulse of the laser beam exert at normal incidence on a surface in air if the beam is fully absorbed?

Express your answer with the appropriate units.

Part C

What are the wavelength of the laser light inside the vitreous humor of the eye?

Express your answer with the appropriate units.

Part D

What is the frequency of the laser light inside the vitreous humor of the eye?

Express your answer with the appropriate units.

Part E

What is the maximum value of the electric field in the laser beam?

Express your answer with the appropriate units.

Part F

What is the maximum value of the magnetic field in the laser beam?