Q- Lord Rutherford found that most of an atom consists of empty space-.docx
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Q: Lord Rutherford found that most of an atom consists of empty space. This means that the chair on which you are sitting is mostly empty space. Why, therefore, don\'t you fall through the chair onto the floor? 1. Solution To explain why we must look at the electrons. Unfortunately, much of what we are taught at school is simplified – electrons do not orbit the center of an atom like planets around the sun, like you may have been taught. Instead, think of electrons like a swarm of bees or birds, where the individual motions are too fast to track, but you still see the shape of the overall swarm. In fact, electrons dance – there is no better word for it. But it’s not random dancing – it’s more like ballroom dancing, where they move in set patterns, following steps laid down by a mathematical equation named after Erwin Schrödinger. These patterns can vary – some are slow and gentle, like a waltz whereas some are fast and energetic, like a Charleston. Each electron keeps to the same pattern, but once in a while, it may change to another, as long as no other electron is doing that pattern already. No two electrons in an atom can do the same step: this rule is called the Exclusion Principle. So why does a chair feel solid? If you touch the chair, then the electrons from atoms in your fingers become close to the electrons in the chair’s atoms. As the electrons in one atom get close enough to the nucleus of the other, the patterns of their dances change. This is because an electron in a low energy level around one nucleus can’t do the same around the other – that slot’s already taken by one of its own electrons. The newcomer must step into an unoccupied, more energetic role. That energy has to be supplied by the force from your probing finger. So pushing just two atoms close to each other takes energy, as all their electrons need to go into unoccupied high-energy states. Trying to push all the chair-atoms and finger-atoms together demands an awful lot of energy – more than your muscles can supply. You feel that, as resistance to your finger, which is why and how the chair feels solid to your touch. .
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Design a class named Account that contains:
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A private float data field named balance for the account.
A private float data field named annualInterestRate that stores the current interest rate.
A constructor that creates an account with the specified id (default 0), initial balance (default 100), and annual interest rate (default 0).
The accessor and mutator methods for id, balance, and annualInterestRate.
A method named getMonthlyInterestRate() that returns the monthly interest rate.
A method named getMonthlyInterest() that returns the monthly interest.
A method named withdraw that withdraws a specified amount from the account.
A method named deposit that deposits a specified amount to the account.
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self.__annualInterestRate = annualInterestRate
def getMonthlyInterestRate(self):
return self.__annualInterestRate / 1200
def getMonthlyInterest(self):
return self.__balance * self.getMonthlyInterestRate()
def withdraw(self, withdraw):
self.__balance -= withdraw
def deposit(self, deposit):
self.__balance -= deposit
def main():
account1 = Account(1122, 20000, 4.5)
account1.withdraw(2500)
account1.deposit(3000)
print(account1.getAccountId())
print(account1.getBalance())
print(account1.getMonthlyInterestRate())
print(account1.getMonthlyInterest())
main()
.
Purchases Date Units Unit Cost Sales Units Average cost for each unit.docx
Purchases
Date
Units
Unit Cost
Sales Units
Average cost for each unit
FIFO
MOVING-AVERAGE
LIFO
Solution
average unit costs:
July 1 - 120
July 6 -120
July 11- 134
July 14 - 134
july 21- 142.6
July- 142.6
ending value of inventory
under FIFO= $23,040
moving average= $30,660
LIFO= $23,384
.
Provide examples of applications that typically access files according.docx
Provide examples of applications that typically access files according to the following methods. Some systems automatically open a file when it is referenced for the first time and close the file when the job terminates. Discuss the advantage, and disadvantages of this scheme compared with the more traditional one, where the user has to open and close the file explicitly. If the operating system knew that a certain application was going to access file data in a sequential manner, how could it exploit this information to improve performance? Give an example of an application that could benefit from operating-system support for random access to indexed files.
Solution
10.12
Sequential: Application that acess documents successively incorporate word processors, video players, music players and web administrations.
Random:Application that access documents arbitrarily incorporate databases, video and sound editors.
10.13
Programmed opening and shutting of documents remembers the client from the innovation of these function, and in this manner makes it more helpful to the client, however, it requires more overhead than the situation where unequivocal opening and closing is required.
10.14
At the point when block is accessed, file system could prefetch the consequent blocks in suspicion of future requests to these blocks. This prefetching advancement word elicit the holding up time experienced by the process for future solicitations.
10.15
An application that keep up a database of sections could profit by such support. Case in point, if a project is keep up a Employee database, then access to the database can\'t be displayed by any foreordained acess design. The acess to records are random and finding the recods would be more proficient if the working framework were to give some type of tree base index
.
Provide copy constructor- destructor- and assignment operator for the.docx
Provide copy constructor, destructor, and assignment operator for the IntList class that stores a collection of integers using linked list.
class ListNode {
int value;
ListNode * next;
};
class IntList {
public: ...
IntList(const IntList & other);
~IntList();
IntList& operator =( const IntList & other ) ...
private:
int num; //the number of ints stored.
ListNode * first;
};
Solution
Hi, I have implemented all functionality.
Please test it in your test program
using namespace std;
class ListNode {
public:
int value;
ListNode * next;
};
class IntList {
public:
IntList();
IntList(const IntList & other);
~IntList();
void operator =( const IntList & other);
private:
int num; //the number of ints stored.
ListNode * first;
};
IntList::IntList(const IntList & other){
IntList *ptr = new IntList();
ListNode *temp = other.first;
ListNode *temp1 = ptr->first;
ListNode *firstLocal = NULL;
while(temp != NULL){
if(firstLocal == NULL){
firstLocal = temp;
temp1 = firstLocal;
}
else{
temp1->next = temp;
temp1 = temp;
}
temp = temp->next;
}
ptr->first = firstLocal;
ptr->num = other.num;
}
IntList::~IntList(){
while(first != NULL){
ListNode *local = first;
first = first->next;
delete local;
}
}
IntList::IntList(){
first = NULL;
num = 0;
}
void IntList::operator =( const IntList & other){
first = other.first;
num = other.num;
}
.
Provide a summary of the basic ideals and significant individuals behi.docx
Provide a summary of the basic ideals and significant individuals behind the Protestant Reformation, and what was its impact on Christianity.
Solution
The Protestant Reformation was the 16th-century religious, political, intellectual and cultural upheaval that splintered Catholic Europe, setting in place the structures and beliefs that would define the continent in the modern era. In northern and central Europe, reformers like Martin Luther, John Calvin and Henry VIII challenged papal authority and questioned the Catholic Church’s ability to define Christian practice. They argued for a religious and political redistribution of power into the hands of Bible- and pamphlet-reading pastors and princes. The disruption triggered wars, persecutions and the so-called Counter-Reformation, the Catholic Church’s delayed but forceful response to the Protestants.
Even though people were worshiping as they believed, the Protestant Reformation brought about a new set of problems. Catholicism refused to let go of its power and they fought hard to keep their dominance over the people. Different protestant denominations began to spring up and they were in conflict with other Christian sects about the matter of how best to worship God. People all throughout Europe began to engage in bloody conflicts over their religious disagreements. Catholics fought against the Protestants and rulers fought against various Christian sects that did not affiliate with their particular beliefs. The Reformation not only drove people to found America, but it also helped to establish the Constitution which is the living document that governs the United States. After the religious dissenters from Europe arrived in America, society was dominated by a clash of various religious beliefs. Those beliefs continued to dominate America for hundreds of years, up until the latter half of the 20th century. Religion was so strong in America that it dictated the lives of millions of settlers that lived in the colonies.
As we know christinaity is one big religion in the word that so many people follow hence it does not provide any impact because people always worship on their beliefs not on some sort of organisations
.
proposed solution to resource sharing and security against unauthorize.docx
proposed solution to resource sharing and security against unauthorized resource access that you view as the ideal balance between sharing, protection, and complexity of implementing users and groups in an operating system of your choice. Provide an instance that comes close to your ideal balance between resource sharing and protection against unauthorized resource access.
Describe any security issues or benefits that you envision with the proposed solution.
Describe any file access issues that may exist with the proposed solution.
Solution
Shared resources, also known as network resources, refer to computer data, information, or hardware devices that can be easily accessed from a remote computer through a local area network (LAN) or enterprise intranet. Successful shared resource access allows users to operate as if the shared resource were on their own computer. The most frequently used shared network environment objects are files, data, multimedia and hardware resources like printers, fax machines and scanners.
Operating systems have to balance the conflicting goals of convenient resource sharing and protection against unauthorized resource access. Windows offers a variety of mechanisms such as user and group permissions, shares, and access control lists with inheritance. On the other hand, Linux has a much simpler implementation of users and groups.
Following methods are adopted to achieve resoure security: 1) using global user identifiers to replace traditional user identifiers; 2) implanting global user identifiers into kernel entities such as processes and files; 3) adopting an access control mechanism based on global user identifiers. The most important feature of our approach is that we implement it by introducing innovative elements into operating system kernels. Compared with middleware approaches, our method can provide better security, performance and compatibility.
A file management system is a type of software that manages data files in a computer system. It has limited capabilities and is designed to manage individual or group files, such as special office documents and records. It may display report details, like owner, creation date, state of completion and similar features useful in an office environment.
A file management system is also known as a file manager.
Problems addressed by modern file systems:
Issues to consider:
Contiguous allocation (also called \"extent-based\"): allocate files like segmented memory (contiguous run of sectors). Keep a free list of unused areas of the disk. When creating a file, make the user specify its length, allocate all the space at once. Descriptor contains location and size. Example: IBM OS/360.
.
Programming Language- C++ or Java Write to program to generate a pair.docx
Programming Language: C++ or Java
Write to program to generate a pair of private and public keys. You program should also be able to encrypt and decrypt messages using the public and private keys.
Solution
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.security.Key;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.scrRndm;
import java.security.Security;
import sun.misc.BASE64Encoder;
public class gnrateKys{
public static void main(String[] args)
{
String PBLCkEY = null;
String PRVATEkEYfM = null;
gnrateKys gnrateKys = new gnrateKys();
if (args.length < 2)
{
System.err.println(gnrateKys.getClass().getName());
System.exit(1);
}
PBLCkEY = args[0].trim();
PRVATEkEYfM = args[1].trim();
gnrateKys.generate(PBLCkEY, PRVATEkEYfM);
}
private void generate (String PBLCkEY, String privateFilename){
try {
Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
KeyPairGenerator gnrtr = KeyPairGenerator.getInstance(\"RSA\", \"BC\");
BASE64Encoder b64Enc = new BASE64Encoder();
scrRndm random = createFixedRandom();
gnrtr.initialize(1024, random);
KeyPair par = gnrtr.generateKeyPair();
Key pbkey = par.getPublic();
Key prvKy = par.getPrivate();
System.out.println(\"publicKey : \" + b64Enc.encode(pbkey.getEncoded()));
System.out.println(\"privateKey : \" + b64Enc.encode(prvKy.getEncoded()));
BufferedWriter out = new BufferedWriter(new FileWriter(PBLCkEY));
out.write(b64Enc.encode(pbkey.getEncoded()));
out.close();
out = new BufferedWriter(new FileWriter(privateFilename));
out.write(b64Enc.encode(prvKy.getEncoded()));
out.close();
}
catch (Exception e) {
System.out.println(e);
}
}
public static scrRndm createFixedRandom()
{
return new FixedRand();
}
private static class FixedRand extends scrRndm {
MessageDigest sha;
byte[] state;
FixedRand() {
try
{
this.sha = MessageDigest.getInstance(\"SHA-1\");
this.state = sha.digest();
}
catch (NoSuchAlgorithmException e)
{
throw new RuntimeException(\"can\'t find SHA-1!\");
}
}
public void nextBytes(byte[] bytes){
int off = 0;
sha.update(state);
while (off < bytes.length)
{
state = sha.digest();
if (bytes.length - off > state.length)
{
System.arraycopy(state, 0, bytes, off, state.length);
}
else
{
System.arraycopy(state, 0, bytes, off, bytes.length - off);
}
off += state.length;
sha.update(state);
}
}
}
}
.
Question 30 As people become more powerful they tend to become less go.docx
The document contains 4 multiple choice questions about power, influence, communication and organizational politics. Question 30 asks about how power relates to goals and motivation. Question 31 asks about the type of influence a supervisor uses by closely monitoring employees. Question 32 asks about what filtering in communication refers to. Question 33 asks about what typically characterizes organizational politics.
Question 34 People with high Machiavellian values tend to- place a lot.docx
Question 34
People with high Machiavellian values tend to:
place a lot of trust in their colleagues.
stay away from organizations where politics is tolerated.
use more socially acceptable forms of power to influence others.
are comfortable using power to manipulate others toward their own personal goals.
believe that deceit is totally inappropriate in organizational settings.
2 points
Question 35
Emotional contagion occurs when:
we share the emotions of other people.
we are required to show or hide our emotions, based on rules prescribed by the job.
two or more people experience different emotions even though they are observing the same object.
the communication medium has different meaning for the receiver and the sender.
two or more people experience the same emotions even though they are observing different objects.
2 points
Question 36
Employees with high emotional intelligence are able to avoid the escalation of constructive conflict into relationship conflict.
True
False
2 points
Question 37
Mimicking another person\'s behavior and emotions is a part of emotional contagion.
True
False
Solution
QUESTION 34 - 1. are comfortable using power to manipulate others toward their own personal goals
QUESTION 35 - 1. we share the emotions of other people
QUESTION 36 - 1. True
QUESTION 37 - 1. True
.
Question 21 Resource scarcity is a likely cause of conflict in organiz.docx
Question 21
Resource scarcity is a likely cause of conflict in organizations that are experiencing downsizing or financial difficulties.
True
False
3 points
Question 22
Intuition adds elements of flexibility and spontaneity to decision-making, thereby offering potential for creativity and innovation.
True
False
3 points
Question 23
Downward communication does all of the following EXCEPT:
Helps minimize the spread of rumors.
Achieves influence through information.
Helps create a sense of security and involvement among receivers who feel they know the whole story.
Filters messages from employees to supervisors.
Follows the chain of command top to bottom.
3 points
Question 24
All of the following statements relating to escalating commitment are correct EXCEPT:
decision makers may rationalize negative feedback resulting from an escalated commitment as a temporary condition.
an escalated commitment may result in a decision maker protecting his or her ego by not admitting that the original decision was a mistake.
the tendency to escalate commitments often outweighs the willingness to disengage from them.
once it is determined that a chosen course of action is
Solution
21.
True
(Resource scarcity is a serious concern. Companies facing this problem have to cut down on their resources either physically or financially)
22.
True
23.
Helps minimize spread of rumors
(Since employees will be directly in touch with the management)
24.
Once it is determined that a chosen course of action is
.
Question 2 Compare the eye to a camera by listing four of the basic co.docx
Question 2 Compare the eye to a camera by listing four of the basic components of the eye and the equivalent components of the camera.
Solution
Camera part
Function in the camera
Structure in the eye performing a similar role
Lens
To focus light onto the photosensitive surface at the back of the camera. This can either be photographic film or a CCD (charge-coupled device).
Lens - which focuses light onto the retina.
Focusing screw
Allows the user to adjust the focus for nearer or more distant objects.
Ciliary muscles - which stretch or slacken the suspensory ligaments to adjust the shape of the lens
Aperture
Allows the user to adjust the amount of light entering the camera in different light conditions.
Iris - which adjusts the amount of light entering the eye through the pupil.
Shutter
Allows the user to adjust the length of time that light enters the camera, which controls the amount of light to which the photosensitive surface is exposed.
Not applicable (although we do have eyelids).
.
Question 1- The alien species has decided that they will use a special.docx
Question 1: The alien species has decided that they will use a special ray gun to destroy all of a specific type of organelles from all of the cells of your outer ears. Choose which of the following you would miss the least and discuss exactly what the results would be on a cellular level (hint- think of the functions of that organelle). List any treatments that you would try to counteract the loss of that organelle.
Choose one of the following organelles to be removed in all of the cells of your outer ears: nucleus, ribosomes, mitochondria, vacuoles, golgi, ER, or lysosomes
Question 2: The alien species has decided that they want use a ray gun on you that will duplicate or remove one of the 23 types of chromosomes in all of your body cells. You get to choose which chromosome is affected (choose the the one that would impact your life the least). If your last name begins with H-Z, choose a chromosome that will be duplicated (only one will be duplicated so you will now have 47 chromosomes).
Question 3: The aliens have decided to remove one chemical element from the entire earth (one of the elements from the periodic table).
6 points: List and describe which 3 elements would impact life on earth the most if removed and exactly why each of these elements are important to life.
4 points: List and describe which two elements would impact life the least and describe why you wouldn\'t mind them being permanently removed from earth forever.
Solution
Ans 1. Nucleus can not be removed because it takes control of all the activities taking place in the cell.it is the largest organelle and contains chromosome which is the genetic material of the cell. It helps the cell to live, finction and reproduce.
Lysosomes can be removed because it works to remove waste materials in the cell. It can be water removal, undigested food particle removal. Aliens are like machine and expected not to eat.
Ans 2. Chromosome affecting your behaviour can be removed because aliegns have no feelings.
Extra chromosome 21 causes an disorder known as down syndrome to have 47 chromosomes.
Ans 3.
Super heavy elements starting from atomic number 104 can be removed from earth.
1. Oxygen, carbon and hydrogen are very important for living organisms. Living organisms have huge amounts of these elements. Atoms of these elements join together to form thousands of large molecules. The are found in our biomolecules. Carbon is a special element because of its catenation property and forming lots of molecules. These are essential for life.
1. Rutherfordum, Dubnium and Seaborgium are least important and can be removed from earth. It is so because these have been artificially created and are not so important for living organisms.
.
Question 13 Which of the following is the first stage of an experienti.docx
Question 13
Which of the following is the first stage of an experiential learning training program?
Take part in a behavior simulation
Analyze the activity
Gain conceptual knowledge and theory
Connect the theory and activity with on-the-job or real-life situations
Question 15
An expatriate is an employee:
working as a spy in a competitor\'s company.
who has been headhunted from a firm to join another company.
who works in a country other than his or her country of origin.
working for a multinational company in his home country.
2 points
Question 16
All of the following are examples of RID strategies EXCEPT _____.
combining different steps of the design process such as analyses and evaluation
conducting separate analyses of training needs and learning outcomes
developing instruction around job aids
using shortcuts (e.g., use existing records for needs assessment; conduct focus groups)
Question 17
Development involves learning that is not necessarily related to the employee\'s current job.
True
False
Question 19
In a traditional learning environment, _____.
learning used to be a very dynamic process
communication on course content was primarily two-way
learning occurred primarily through exchanges with other learners
experts and resource materials were separate from the learning environment
Solution
q13) B.Analyze the activity
q15) C.who works in a country other than his or her country of origin
q16) D. using shortcuts
q17) true
q19) B
.
Question 11 Active communication occurs by facial expressions- body po.docx
Question 11
Active communication occurs by facial expressions, body position, eye contact, and other physical gestures.
True
False
3 points
Question 12
Crossed legs are quite acceptable in the United Kingdom but are rude in Saudi Arabia if the sole of the foot is directed toward someone.
True
False
3 points
Question 13
Approach-approach conflict, avoidance-avoidance conflict, and approach-avoidance conflict are different types of interpersonal conflict.
True
False
3 points
Question 14
The flow of messages from lower to higher organizational levels is downward communication.
True
False
3 points
Question 15
A term used to recognize that power comes from the ability to influence another in a social relation is called association power.
True
False
3 points
Question 16
Communication channels are the pathways through which messages are communicated.
True
False
3 points
Question 17
Lisa cannot listen objectively to Tom due to issues with lack of trust. Lisa is experiencing an interpersonal barrier to communication.
True
False
3 points
Question 18
Social capital is the knowledge, skills and intellectual assets employees bring to the workplace.
True
False
3 points
Question 19
When dealing with risk environments, probabilities are assigned through objective statistical procedures rather than intuition.
True
False
3 points
Question 20
The key elements in the communication process include a source, who encodes an intended meaning into a message; a receiver, who decodes the message into a perceived meaning; and noise, which is any disruption in the transference of the message.
True
False
Solution
all statements are true except 13, the remaining are true.
.
QUESTION 1 Interaction Design is designing interactive products to sup.docx
QUESTION 1
Interaction Design is designing interactive products to support the way people communicate and interact in their everyday and working lives.
True
False
QUESTION 2
Interaction designers should avoid working in multidisciplinary teams because it is difficult to communicate and progress forward the designs being create.
True
False
QUESTION 3
In order to expedite the interaction design, you involve the user as little as possible.
True
False
QUESTION 4
Today products are being used by a diverse range of user groups from different countries making cultural differences like dates and times extremely important in interactive design.
True
False
QUESTION 5
An assumption is stating something to be true when it is still open to question.
True
False
Solution
1.
Interaction Design :
It is designing interactive products to support the way people communicate and interact in their everyday and working lives.
True is correct choice.
2.
Disadvantage of interaction design :
Interaction designers should avoid working in multidisciplinary teams because it is difficult to communicate and progress forward the designs being create.
True is correct choice.
3.
In order to speed up the interaction design, we involve the user as large as possible
False is correct choice.
4.
Statement :
Today products are being used by a diverse range of user groups from different countries making cultural differences like dates and times extremely important in interactive design.
The statement is true.
5.
Statement :
An assumption is stating something to be true when it is still open to question.
The statement is true.
.
question 1 What is the behavior of setting C locale- Strings are alway.docx
question 1
What is the behavior of setting C locale?
Strings are always displayed in UTF-8
Strings are displayed as per the user\'s LANG setting
Strings are translated and then displayed
Strings are displayed as written in the initial code
Question 2
Linux systems keep time in ____.
UST
UTC
IST
GMT
Question 3
The /etc/localtime file is a flat file containing plain text that is used to configure the system wide time zone.
True or False?
True
False
Question 4
Which command is used to verify time zone changes?
systime
sysdate
nls
date
Question 5
Which command is used to find the current character mapping in Linux?
locale -C
locale charmap
locale --charmap
locale -c
Question 6
ASCII is not a subset of UTF-8.
True or False?
True
False
Question 7
Which of the following is NOT a capability of Unicode characters?
User applications can display Unicode files
Can be used in file names
Supports mathematical and technical symbols
Uses separate language packs for each language
Question 8
How many bits character encoding is supported by ISO?
32-bit
16-bit
4-bit
8-bit
Question 9
Which API is used for converting one character encoding to another?
iconv
fconv
rconv
pconv
Question 10
Which can be used for converting an older ASCII encoded file to UTF-8 encoding?
sed
locale
iconv
awk
Solution
1)behavior of setting C locale is strings are always displayed in UTF-8
2)linux system keep time in UTC
3)false
4) sysdate command is used to verify time zone changes.
6)false,ASCII is a proper subset of UTF-8
8) 8-bit character encoding is supported by ISO
10)iconv is used to older ASCII to UTF-8
syntax is iconv -f iso-8859-1 -t utf8 test-file-2 > test-file-2-converted
.
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