Give 5 importance of using relations and digraphs in computer science-.docx
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Give 5 importance of using relations and digraphs in computer science? Give an example of how a relation is used in computer science. Solution Answer 1. Relations are represented by matrices as well as digraphs. Computer representation of relationship also given. 2. Recursion is one of the parts of relations and digraphs in computer science. 3. Combinatorics and recurrence relations. The concept of permutations, combinations and their relations are discussed. 4. Concept of trees and graphs,Binary trees ,Hamilton graphs used the relations in computer science. 5. Concept of Boolean algebra, lattices, partial order relations. how a relation is used in computer science. Discrete mathematics used are used in computer science include graphs, counting ,probability and matrices. Discrete math methods may be used in designing algorithms and computer systems, as well as in software engineering. .
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given a slab of material with a finite resistivity
Solution
a)
Since the conductivities of the media above and below the sheet are negligible, no current will flow outside the slab. Furthermore, due to symmetry of the configuration, current will flow perpendicular to the injecting electrode throughout the slab. However, the strength of the current will decrease with radial distance from the point of injection. Thus, a cylindrical coordinate system can be used to conveniently describe the current distribution, with z as the perpendicular distance from the electrode and r as the radial distance.
b)
Let the current density be J.
At a particular z, integral of J with respect to area should be equal to I (since charge can neither be created nor destroyed. We assume that J is inversely proportional to radial distance r. Thus, J = k / r
At a particular z, elemental area dA = r x d(phi) (where phi is the azimuth angle of the cylindrical system)
Integral of J with respect to dA = k x pi = I
Therefore, k = I / pi
Hence, J = I / (pi x r)
From ohm\'s law, we have:
E = rho x J (where rho is the resistivity)
Therefore, E = rho x I / (pi x r)
c)
We know that
E = - dV / dz
Thus, Potential difference between two points will be equal to the negative integral of E with respect to z
Since E depends not on z but only on r, negative integral of E with respect to z will be:
V = rho x I x (d - c) / (pi x r)
d)
Distance z = 3 - 1 = 2 cm = 0.02 m
I = 10 mA = 0.01 A
Potential difference V = 0.25 V
Resistance R between the two points = V / I = 25 ohms
Thickness H = 5 cm = 0.05 m
Resistivity rho = R x Area / Distance z = 25 x 0.05 / 0.02 = 62.5 ohm-cm
.
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Give two examples of how a market has been used internally within a company, according to Malone.
Solution
intergration of marker like elements within the scope of the decentralised resource allocation via internal markets. for example , capital for certain investment projects is allocated via an electronically platforms by the interplay of internal suppliers and requestors, which are organised as profit centres.
insummary it may be said that the specified publication differ from those of the centralised resource allocation via internal markets by the following-
-they focus on the capital allocation on investment projects and not on divisions
-they examine the forms of resource allocation due to possibilities of modern information systems
-they suggest decentalised market oriented coordination form with independently acting divisions
based on this understanding more recent publication focus on example of companies that use internal markets for the coordination fo different tasks. malone for instance,focuses on how internal markets impacts companies
according to malone the major advantages of internal markets are that they encourage creativity and independence and that they can respond faster to capitalise on an oppotunity .further ,he states that internal markets \" provide the right incentives for people to buy and sell according to what they actually think will happen.it is possible that people might try to manipulate the market.Malone et al. found that some business models, as defined by them, indeed performed better than other
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For Part 1, write 400–500 words analyzing characterization and poi
For Part 1, write 400–500 words analyzing characterization and poi
More from mcarolyn
given a slab of material with a finite resistivitySolutiona) Since the.docx
given a slab of material with a finite resistivity
Solution
a)
Since the conductivities of the media above and below the sheet are negligible, no current will flow outside the slab. Furthermore, due to symmetry of the configuration, current will flow perpendicular to the injecting electrode throughout the slab. However, the strength of the current will decrease with radial distance from the point of injection. Thus, a cylindrical coordinate system can be used to conveniently describe the current distribution, with z as the perpendicular distance from the electrode and r as the radial distance.
b)
Let the current density be J.
At a particular z, integral of J with respect to area should be equal to I (since charge can neither be created nor destroyed. We assume that J is inversely proportional to radial distance r. Thus, J = k / r
At a particular z, elemental area dA = r x d(phi) (where phi is the azimuth angle of the cylindrical system)
Integral of J with respect to dA = k x pi = I
Therefore, k = I / pi
Hence, J = I / (pi x r)
From ohm\'s law, we have:
E = rho x J (where rho is the resistivity)
Therefore, E = rho x I / (pi x r)
c)
We know that
E = - dV / dz
Thus, Potential difference between two points will be equal to the negative integral of E with respect to z
Since E depends not on z but only on r, negative integral of E with respect to z will be:
V = rho x I x (d - c) / (pi x r)
d)
Distance z = 3 - 1 = 2 cm = 0.02 m
I = 10 mA = 0.01 A
Potential difference V = 0.25 V
Resistance R between the two points = V / I = 25 ohms
Thickness H = 5 cm = 0.05 m
Resistivity rho = R x Area / Distance z = 25 x 0.05 / 0.02 = 62.5 ohm-cm
.
Give two examples of how a market has been used internally within a co.docx
Give two examples of how a market has been used internally within a company, according to Malone.
Solution
intergration of marker like elements within the scope of the decentralised resource allocation via internal markets. for example , capital for certain investment projects is allocated via an electronically platforms by the interplay of internal suppliers and requestors, which are organised as profit centres.
insummary it may be said that the specified publication differ from those of the centralised resource allocation via internal markets by the following-
-they focus on the capital allocation on investment projects and not on divisions
-they examine the forms of resource allocation due to possibilities of modern information systems
-they suggest decentalised market oriented coordination form with independently acting divisions
based on this understanding more recent publication focus on example of companies that use internal markets for the coordination fo different tasks. malone for instance,focuses on how internal markets impacts companies
according to malone the major advantages of internal markets are that they encourage creativity and independence and that they can respond faster to capitalise on an oppotunity .further ,he states that internal markets \" provide the right incentives for people to buy and sell according to what they actually think will happen.it is possible that people might try to manipulate the market.Malone et al. found that some business models, as defined by them, indeed performed better than other
.
Give the conjugate base for each compound below- Acid Conjugate Base H.docx
Give the conjugate base for each compound below. Acid Conjugate Base H,Po HSO NH H,PO4 NH, Which of the following describes a Brønsted- Lowry acid? O a substance that donates Ht to another substance O a substance that accepts H* from another substance O a substance that dissociates in water to form H O a substance that dissociates in water to form OH Which of the following describes a Brønsted-Lowry base? O a substance that dissociates in water to form Ht O a substance that accepts Ht from another substance O a substance that dissociates in water to form OH O a substance that donates Ht to another substance
Solution
1)
conjugate base is formed after acid loses H+
a)
Conjugate base of H3PO4 is:
H2PO4-
b)
Conjugate base of HSO4- is:
SO42-
c)
Conjugate base of NH4+ is:
NH3
d)
Conjugate base of H2PO4- is:
HPO42-
e)
There is no conjugate base of SO42-
f)
There is no conjugate base of NH3
2)
Bronsted Lowry acid is proton donor
Answer: option 1
3)
Bronsted Lowry base is proton acceptor
Answer: option 2
.
Give an example of a conflict of an interest in a business setting (a.docx
Give an example of a conflict of an interest in a business setting (a personal one would work) other than the one involving the real estate agent discussed in the text.
Solution
Conflict of interest is a set of conditions in which professional judgement of organization
or individual have multiple interests; and this judgement is influenced by secondary
interest which could be a corrupted motivation for their personal or organizational
benefits.
When employee\'s loyalities or action are divided between the employer\'s interest and
family menbers or customers, etc; then conflict of interest asrises having negative effect.
example would be you are an accountant for Enron and a lawyer for Vinson & Elkins that works on Enron accounting affairs. You\'d find yourself being a person responsible for producing part of the accounting statements that Enron presents to investors, at the same time you are responsible for ensuring that Enron accountants (aka YOU) do not break any laws in the process of doing such accounting work. You audit yourself. Impact: company management, the Board, investors, government regulators, rating agencies... the IRS... nobody should trust Enron\'s financial statements. If the CFO or CEO signs off on financial statements produced in this manner, knows you have such a conflict, and doesn\'t get it okay\'d by the Board OR knows that it led to misrepresented financial statements, then he or she will be criminally liable. It is fraud.
Again, Impact: investors lose money; bondholders lose money -- that means the company loses value (net worth). Customers suffer, and take their business elsewhere. This reduces revenues, and thus profits. Investors and bondholders lose more money. The company has even less money now to to do business. Follow the vicious cycle to its end, and you end up being Enron, and like Andy Fastow and Jeff Skilling -- in prison.
.
Give 2 reasons why chlorine is often added to groundwater prior to any.docx
Give 2 reasons why chlorine is often added to groundwater prior to any other unit processes/treatment?
Solution
The Benefits of Chlorine
Potent Germicide
Chlorine disinfectants can reduce the level of many disease-causing microorganisms in drinking water to almost immeasurable levels.
Taste and Odor Control
Chlorine disinfectants reduce many disagreeable tastes and odors. Chlorine oxidizes many naturally occurring substances such as foul-smelling algae secretions, sulfides and odors from decaying vegetation.
Biological Growth Control
Chlorine disinfectants eliminate slime bacteria, molds and algae that commonly grow in water supply reservoirs, on the walls of water mains and in storage tanks.
Chemical Control
Chlorine disinfectants destroy hydrogen sulfide (which has a rotten egg odor) and remove ammonia and other nitrogenous compounds that have unpleasant tastes and hinder disinfection. They also help to remove iron and manganese from raw water.
.
gggggggggggggggggggggggggggggggggSolutionElectrical engineering is a f.docx
ggggggggggggggggggggggggggggggggg
Solution
Electrical engineering is a field of engineering that generally deals with the study and application of electricity, electronics, andelectromagnetism. This field first became an identifiable occupation in the latter half of the 19th century after commercialization of the electric telegraph, the telephone, and electric power distribution and use. Subsequently, broadcasting and recording media made electronics part of daily life. The invention of the transistor and, subsequently, the integrated circuit brought down the cost of electronics to the point where they can be used in almost any household object.
Electrical engineering has now subdivided into a wide range of subfields including electronics, digital computers, power engineering,telecommunications, control systems, RF engineering, signal processing, instrumentation, and microelectronics. The subject of electronic engineering is often treated as its own subfield but it intersects with all the other subfields, including the power electronics of power engineering.
Electrical engineers typically hold a degree in electrical engineering or electronic engineering. Practicing engineers may have professional certification and be members of a professional body. Such bodies include the Institute of Electrical and Electronic Engineers (IEEE) and the Institution of Engineering and Technology (IET).
.
Generally- costs incurred internally to create intangibles are A) capi.docx
Generally, costs incurred internally to create intangibles are
A) capitalized.
B) capitalized if they have an indefinite life.
C) expensed as incurred.
D) expensed only if they have a limited life.
Solution
Intangible assets lack physical existence. Unlike tangible assets such as property, plant, and equipment, intangible assets derive their value from the rights and privileges granted to the company using them.
They are not financial instruments. Assets such as bank deposits, accountsreceivable, and long-term investments in bonds and stocks lack physical substance, but are not classified as intangible assets. These assets are financial instruments and derive their value from the right or claim to receive cash or cash equivalents in the future.
In most cases, intangible assets provide services over a period of years. As a result, they are normally classified as long-term assets. The most common types of intangibles are patents, copyrights, franchises or licenses, trademarks or trade names, and goodwill.
C) expensed as incurred.
.
GaP is an intrinsic semiconductor with a band gap of 2-26 eV- How woul.docx
GaP is an intrinsic semiconductor with a band gap of 2.26 eV. How would its carrier concentration vs. temperature compare to Ge?
Solution
Basic Parameters
.
Functional Groups a) what is an alcohol- how do you name alcohols- b).docx
Functional Groups
a) what is an alcohol? how do you name alcohols?
b) describe an aldehyde hydrocarbon.how do you name aldehydes?
c) describe a ketone. what is the functional group present? how do you name ketones?
d) what is a carboxylic acid? how do you name a hydrocarbon that contains a carboxylic acid?
e)what is an amine? how do you name a hydrocarbon that contains an amine?
f) describe an ester. what are the properties of an ester? how are they names and how are they formed?
g) describe an ether. what are the properties of an ether?
h) describe an amide. what are the properties of an amide? how are they made??
Solution
A. Alcohol is an organic functional group with general formula R-OH, a hydroxy derivative of alkane.
By adding the suffix \'Ol\' to root word, we can\'t name the alcohol
Ex: CH3CH2-OH, Ethanol. Since it has two carbons hence root word is \'Eth+ ol= ethanol
B. Aldehyde(CHO) is an example for for carbonyl compound and has carbonyl group in it\'s structure & general formula is R- CHO
By adding the suffix\' al\' to parent carbon chain, we can name the aldehydes
Ex: CH3CH2COCl - \'prop\' for three carbons + al for aldehyde = Propanal
C. Ketone is also an example for carbonyl compounds with general formula R-CO-R
By adding the suffix \'one\' to parent carbon chain, we can name the ketone
Ex:CH3COCH3- prop for three carbons +one for suffix = Propanone
D. Carboxylic acid is and organic functional group with general formula R- COOH.
By adding the suffix \'oic\' acid to parent carbon chain.
CH3CH2COOH- \'prop\' for three carbons and \'oic\' for suffix = Propanoic acid
E. Amine is the one which has general formula R-NH2 an amino derivative of alkane and named by adding amine as suffix
Ex: CH3CH2NH2, Ethylamine or Ethanamine
.
Future Sources- Inc- reported the following results for the year endin.docx
Future Sources, Inc. reported the following results for the year ending July 31, 2012:
Prepare a retained earnings statement for the fiscal year ended July 31, 2012.
Solution
Net Income
Cash dividend
Stock Dividend
.
Given the following declarations- what result Is stored In each of the.docx
The document declares integer and double variables and assigns the results of arithmetic operations to variables. It stores 9 in iresult from num1/num2, 9.0 in fresult from explicitly casting num1/num2 to double, 9.6 in fresult from num1/num2 without an explicit cast, 3 in iresult from casting val1/num4 to an integer, and 1 in iresult from num3%num4.
Given below is the partial stockholders equity section of the Balance.docx
Given below is the partial stockholders equity section of the Balance Sheet (as of 12/31/2014) for Toys and Stuff, Inc.
Paid-in-Capital
4% Preferred shares ($100 par) $500,000
Common shares ($1 par) $500,000
Assume that the preferred shares are cumulative, and that no dividends had been paid for 2012 and 2013. If total dividends to be paid for 2014 is $200,000, how much dividends will be paid to the common stockholders?
Please show work.
Solution
Annual Dividend paid to Preferred Stockholders: 500,000 x 4% = $20,000 Per Year
Total Unpaid Preference Dividend for 2012 and 2013 = 20,000 x 2 = $40,000
+ Preference Dividend Payable for 2014 = $20,000
Total Preferred Dividend Payable for 2014 = $60,000
.
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