Electric charge can accumulate on an airplane in flight. You may have observed needle-shaped metal extensions on the wing tips and tail of an airplane. Their purpose is to allow charge to leak off before much of it accumulates. The electric field around the needle is much larger than the field around the body of the airplane and can become large enough to produce dielectric breakdown of the air, discharging the airplane. To model this process, assume that two charged spherical conductors are connected by a long conducting wire and a charge of 79.0 µC is placed on the combination. One sphere, representing the body of the airplane, has a radius of 6.00 m, and the other, representing the tip of the needle, has a radius of 2.00 cm.

(a) What is the electric potential of each sphere? r = 6.00 m: ]V

r = 2.00 cm: V

(b) What is the electric field at the surface of each sphere?

r = 6.00 m: magnitude____________ V/m? direction_________?

r = 2.00 cm: magnitude ____________ V/m? direction________?

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

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

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)

Jane Smith, age 40, is single and has no dependents. She is employed as a legal secretary by Legal Services, Inc. She owns and operates Typing Services located near the campus of Florida Atlantic University at 1986 Campus Drive. Jane is a material participant in the business. She is a cash basis taxpayer. Jane lives at 2021 Oakcrest Road, Boca Raton, FL 33431. Jane's Social Security number is 123-45-6789. Jane indicates that she wants to designate $3 to the Presidential Election Campaign Fund. Jane had health insurance for all months of 2016. During 2016, Jane had the following income and expense items:

Required:

Compute Jane Smith's 2016 Federal income tax payable (or refund due). Use Form 1040, Schedule A, Schedule C, Schedule D and Form 4684. (Note: There is a separate Form 4684 for each casualty or theft.)

Make realistic assumptions about any missing data.

If an amount box does not require an entry or the answer is zero, enter "0".

Enter all amounts as positive numbers. However, unless instructed otherwise, use the minus sign to indicate a loss.

It may be necessary to complete the tax schedules before completing Form 1040.

When computing the tax liability, do not round your immediate calculations. If required round your final answers to the nearest dollar.

Complete Jane Smith's Form 1040 for 2016. Use the minus sign to indicate a loss.

Use the 2016 Tax Rate Schedules to compute the tax. (Note: Because the tax rate schedules are used instead of the tax tables, the amount of tax computed may vary slightly from the amount listed in the tables.)

Electric field mapping Lab Physics 2212k

1) Describe the central electric field (E) shape in the case of two parallel plates.

2) Do the distances between adjacent equipotential lines between the two parallel plates, approximately measure the same? Calculate an average value for the magnitude of the electric field between the plates.

3) Does the electric field extend beyond the edges of the plates in the two parallel plates experiment?

4) Is it possible for two different equipotential lines or two lines of forces to cross each other? Explain.

5) How does the electric field strength vary with the distance from an isolated charged particle?

6) What is the equipotential shape close to "point" electrode?
7) Where is the electric field most nearly uniform in the two opposite point charges experiment?
8) What is the central equipotential shape in the two opposite point charges experiment?

A first year statistics class took part in a simple experiment. Each person took their pulse rate. They then flipped a coin and, if it came up tails, they ran in place for one minute. Everyone then took their pulse a second time. Of the 92 students in the class, 32 ran in place. In repetitions of this experiment, the number that run in place should have a binomial distribution with n = 92 trials and probability of success p = 1/2. a. Simulate 100 repetitions of this experiment using the commands given below. In how many of the 100 experiments did 32 or fewer people have to run? b. Make a histogram of the 100 observations and describe its important characteristics (shape, location, spread and outliers). c. Using software, calculate the probability of getting 32 or fewer tails in 92 tosses of a fair coin. d. Does it seem likely that only 32 of the 92 students got tails? Give a reasonable explanation for what happened.