Two 14-cm-diameter electrodes 0.44 cm apart form a parallel-plate capacitor. The electrodes are attached by metal wires to the terminals of a 20 V battery.

A. What are the charge on each electrode, the electric field strength inside the capacitor, and the potential difference between the electrodes while the capacitor is attached to the battery? Find Q, E, and ∆V.

B. What are the charge on each electrode, the electric field strength inside the capacitor, and the potential difference between the electrodes after insulating handles are used to pull the electrodes away from each other until they are 0.88 cm apart? The electrodes remain connected to the battery during this process. Find Q, E, and ∆V.

C. What are the charge on each electrode, the electric field strength inside the capacitor, and the potential difference between the electrodes after the original electrodes (not the modified electrodes of part B) are expanded until they are 28 cm in diameter while remaining connected to the battery? Find Q, E, and ∆V.

Potentiometry is to be used to determine the concentration of a metal dication, M2+,
in water. The table below shows the dependence of the cell potential on [M2+]
(please note some data has been deliberately omitted).

Q 2(a)
With the aid of a graph, determine the Nernst slope and the Standard Cell Potential,
Eo’. Comment on the values obtained and state the number of electrons transferred.

Q 2(b)
Clearly explaining your reasoning, use the graph to estimate the potentials that are
missing in the table. Comment on the likely accuracy of your predictions.

Q 2(c)
The Standard Cell Potential for Cd2+/Cd is -0.43V, for Pb2+/Pb is -0.29 V and for
Cu2+/Cu is +0.34 V. Clearly explaining your reasoning, determine the likely identity
of the metal cation.

Q 2(d)
If the potential measured for an unknown solution is -0.318 V, determine the
concentration of M2+ in the sample.

Write a program in C++ that converts a positive integer into the Roman number system. The Roman number system has digits

I      1

V    5

X    10

L     50

C     100

D    500

M    1,000

Numbers are formed according to the following rules. (1) Only numbers up to 3,999 are represented. (2) As in the decimal system, the thousands, hundreds, tens, and ones are expressed separately. (3) The numbers 1 to 9 are expressed as

I             1

II            2

III        3

IV        4

V           5

VI        6

VII        7

VIII       8

IX        9

As you can see, an I preceding a V or X is subtracted from the value, and you can never have more than three I’s in a row. (4) Tens and hundreds are done the same way, except that the letters X, L, C and C, D, M are used instead of I and V, X, respectively.

Can this be done in C++ without arrays

The following kinetic data were obtained for an enzyme in the absence of inhibitor (1), and in the presence of an inhibitor at 5 mM concentration (2). Assume[ET] is the same in each experiment. [S] (mM) (1) v(µmol/mL sec) (2) v(µmol/mL sec) 1 12 4.3 2 20 8 4 29 14 8 35 21 12 40 26

a. Using a graphing program (excel or sigmaplot) construct a Lineweaver burke plot representing the uninhibited reaction and the inhibited reaction on the same plot (to submit your graphs please paste into either a word or a pdf document along with your solutions)

b. What is the equation for each of the lines? (on the graph)

c. Determine Vmax and Km for the enzyme.

d. Determine the type of inhibition and the KI for the inhibitor.

1. Examine the results of Part I. What is the relationship between the three voltage readings: V1, V2, and VTOT?
2. From the equivalent resistance readings for the series circuits, can you come up with a rule for the equivalent resistance (Req) of a series circuit with two resistors?
3. Examine the results of Part II. What do you notice about the relationship between the three voltage readings V1, V2, and VTOT in parallel circuits?
4. From the equivalent resistance readings for the parallel circuits, can you come up with a rule for the equivalent resistance (Req) of a parallel circuit with two resistors?
5. What did you discover about the current flow in a series circuit in Part III?
6. What did you discover about the current flow in a Parallel circuit in Part III?
7. If the two measured currents in your parallel circuit were not the same, which resistor had the larger current going through it? Why?

DATA TABLES

In STS, create Java Project, called java_generics_yourNameLastname that;

(Under source directory called, src, create a package csci3444.generics and put all code in it)

1. Create a generic interface called “MyGenInterface” that takes 2 generic types K,V with below methods;

public K getKey();

public V getValue();

2. Create a generic class called “MyGenClass” that implements “MyGenInterface” interface.
   1. has attributes “K key” and “V value” that can be inherited
   2. has a constructor that takes “K _key”, “V _value” inputs and initializes “key”, “value” attributes
   3. has implementation of “getKey” and “getValue” methods returning “key” and “value” respectively.
3. Create a regular class “MyRegularClass” with a public static generic method called “getSum” that
   1. takes T generic class that can be children of java’s Number class
   2. takes 2 inputs of “T inp1”, “T inp2”
   3. returns type T inp1

4. Create class called MainEntry that
   1. has a static main method
   2. in main method, create local variables;
      1. mgi1 of type MyGenInterface that takes Integer and String as K,V
      2. mgi2 of type MyGenInterface that takes Integer and Integer as K,V
      3. Initialize mgi1 to instance of MyGenClass with inputs

(1, “yourName”)

4. Initialize mgi2 to instance of MyGenClass with inputs

(1, 2017)

5. Integer i1 set to returned value from MyRegularClass’ getSum method passing (10,20)
6. Float f1 set to returned value from MyRegularClass’ getSum method passing (100f,200f)

3. In main method, have a System.out.println statement that prints key and value of mgi1 and mgi2 instances
4. In main method, have a System.out.println statement that prints i1 and f1

Checking Input File for correct line format.

So for my C++ assignment, my professor says we need to validate the Input File, if there are white lines and spaces, in which it will ignore them, separated by a comma, and that all data items are there. This will be used in a program where i will store these into an Array, and display them in First name, Last name, and Number of Votes vertical columned categories.

This is a sample of the txt file. My question is, What do i use to be able to take only the names and number and place them into an array. Please explain what each line is doing, even it is not completely obvious. I am a complete beginner.

F=Michael,L=John,V=3342

F=Danny,L=Red,V=2003

F=Hillary,L=Clinton, V=1588

F=Albert,L=Lee,V=5332

F=Steven,L=JohnV=4429

Correct line for the reference: F=John,L=Smith,V=3342

The line errors that your program needs to detect, are as follows:

incorrect token / separator, example in line 5: F=Steven,L=JohnV=4429

(comma missing) – lines with this error need to be ignored

space in token, example in line 3: F=Hillary,X=Clinton, V=1622

lines with this error need to be read, error fixed, data included in your dataset

empty line, example in line 6 – empty lines need to be ignored

This is the sample of the getline code we are suppose to use.

void readFile(Candidate candidates[]) {

string line;

ifstream infile;

infile.open("elections.txt");

while (!infile.eof()) {

getline(infile,line);

// your code here

}

infile.close();

}

JAVA DATA STRUCTURE (Linked Lists/Queue)

public class Node {
   int value;
   Node nextNode;

   Node(int v, Node n){
       value = v;
       nextNode = n;
   }

   Node (int v){
       this(v,null);
   }
}

public class Stack {
   protected Node top;

   Stack(){
       top = null;
   }

   boolean isEmpty(){
       return( top == null);
   }
   void push(int v){
       Node tempPointer;
       tempPointer = new Node(v);
       tempPointer.nextNode = top;
       top = tempPointer;
   }
   int pop(){
       int tempValue;
       tempValue = top.value;
       top = top.nextNode;
       return tempValue;
   }
   void printStack(){
       Node aPointer = top;
       String tempString = "";
       while (aPointer != null)
       {
           tempString = tempString + aPointer.value + "\n";
           aPointer = aPointer.nextNode;
       }

       System.out.println(tempString);
   }
}

public class StackWithLinkedList {
   public static void main(String[] args){
       int popValue;
       Stack myStack = new Stack();
       myStack.push(5);
       myStack.push(7);
       myStack.push(9);
       myStack.printStack();
       popValue = myStack.pop();
       popValue = myStack.pop();
       myStack.printStack();
   }
}

Add the Queue class to the program introduced above. New Class should be CREATED (-->NOT importing<-- ANY TYPE of CLASS from Java Library, just using the provided classes), You should create Queue class like we created the Stack class(see the CODE above). Create the Queue class with the following specifications:

a. It must create a queue(constructor)

b. Insert one end (enqueue)

c. Do extractions at the other end (dequeue)

d. Determine if queue is empty (isEmpty)

e. Print the content of the queue (printQueue)

f. Finally, you must develop a main class QueueWithLinkedList that proves that every method works (just like we did with the StackWithLinkedList class provided in the program above)

Med Student Sleep Average (Raw Data, Software Required):
Here we consider a small study on the sleep habits of med students and non-med students. The study consists of the hours of sleep per night obtained from 30 non-med students and 25 med students. The sample data is given in the table below. Test the claim that, on average, the mean hours of sleep for all med students is different from that for non-med students. Test this claim at the 0.01 significance level.

      While the population of language minority students is growing, the number of students in bilingual programs is decreasing. What are some of the reasons for this decline?