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how does the sample mass determined by explicity subtracting the mass of the container compare to the determined using the electronic tare function? how does the determined mass of a sample depend on the mass of a container ? does the anwer to this question depend on wheter the electronic tare function is used? Solution The procedure to weigh a sample that is on a container is the following: 1) Make sure that the balance is at zero. 2) Weigh container. 3) Record the weight of the container. 4) Remove the container, place sample and re-weigh container + sample. 5) Subtract weight: Container + shows less Weight: Container. In the case of electronic tare, it is not necessary to note the weight of the container since the balance registers it. Using the electronic tare, a greater precision is obtained, since human error is eliminated. For very heavy containers and very small samples, and scales of little appreciation, the weight of the container may be a problem, since it would not allow registering the correct weight on the balance. .

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Learning Objectives Define the International System of Units (measurement system). Define a unit of measurement and demonstrate the ability to convert measurements. Define length, temperature, time, volume, mass, density, and concentration. Define significant figures and describe measurement techniques. Introduction Just like you and your friend communicate using the same language, scientists all over the world need to use the same language when reporting the measurements they make. This language is called the metric system. In this lesson we will cover the metric units for length, mass, density, volume and temperature, and also discuss how to convert among them. Metric Measurement What do all of these words have in common: thermometer, barometer, diameter, odometer and parameter? All of these words end in -meter . You have probably heard this word before, but what does it mean? Meter at the end of a word means measure . You use all kinds of measurements each day. How much sugar is needed in the cookies you are baking? Will it be warm enough to leave your jacket at home? How fast are you driving? How much will a bag of apples cost? How much time will it take you to get home from work? The units of measure in the English and metric systems Most Americans are taught the English or standard system of measurement, but never get a good dose of the metric system. Lucky for you, it is a much easier system to learn than the English system because all the measurements are base 10 - meaning that when you are converting from one to another, you will always be multiplying or dividing by a multiple of 10 . This is much easier than trying to do calculations between ounces and pounds, and feet and miles. Because you may not be used to thinking metrically, it may take a little practice using and working with the metric system before you gain a better understanding of it and become more fluent in the measurement language of scientists (and most non-Americans). I challenge you to sprinkle a little more metric in your life. Maybe read the milliliter measurement on your soda can or glance at the kilometer reading on your speedometer. Being able to picture metric quantities will really help with the rest of this course. Length We are going to start with the units of length so we can get back to this word meter that we started out with. The meter is the basic unit of length in the metric system. A meter is a tiny bit longer than a yard. For distances much longer than a meter, you would add the prefix kilo- to make the measurement kilometer. A kilometer is the metric version of our mile, even though it is a bit shorter than our mile. A kilometer is equivalent to exactly 1,000 meters. Any unit that has the word kilo- in front of it is equivalent to 1,000 units. You can attach the prefix kilo- to just about anything. If something takes 1,000 seconds, it takes a kilosecond. If a forest has 1,000 trees, it has a kilotree. .

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Measurement and Instrumentation Lab Learning Objectives · Define the International System of Units (measurement system). · Define a unit of measurement and demonstrate the ability to convert measurements. · Define length, temperature, time, volume, mass, density, and concentration. · Define significant figures and describe measurement techniques. Introduction Just like you and your friend communicate using the same language, scientists all over the world need to use the same language when reporting the measurements they make. This language is called the metric system. In this lesson we will cover the metric units for length, mass, density, volume and temperature, and also discuss how to convert among them.Metric Measurement What do all of these words have in common: thermometer, barometer, diameter, odometer and parameter? All of these words end in -meter. You have probably heard this word before, but what does it mean? Meter at the end of a word means measure. You use all kinds of measurements each day. How much sugar is needed in the cookies you are baking? Will it be warm enough to leave your jacket at home? How fast are you driving? How much will a bag of apples cost? How much time will it take you to get home from work? The units of measure in the English and metric systems Most Americans are taught the English or standard system of measurement, but never get a good dose of the metric system. Lucky for you, it is a much easier system to learn than the English system because all the measurements are base 10 - meaning that when you are converting from one to another, you will always be multiplying or dividing by a multiple of 10. This is much easier than trying to do calculations between ounces and pounds, and feet and miles. Because you may not be used to thinking metrically, it may take a little practice using and working with the metric system before you gain a better understanding of it and become more fluent in the measurement language of scientists (and most non-Americans). I challenge you to sprinkle a little more metric in your life. Maybe read the milliliter measurement on your soda can or glance at the kilometer reading on your speedometer. Being able to picture metric quantities will really help with the rest of this course.Length We are going to start with the units of length so we can get back to this word meter that we started out with. The meter is the basic unit of length in the metric system. A meter is a tiny bit longer than a yard. For distances much longer than a meter, you would add the prefix kilo- to make the measurement kilometer. A kilometer is the metric version of our mile, even though it is a bit shorter than our mile. A kilometer is equivalent to exactly 1,000 meters. Any unit that has the word kilo- in front of it is equivalent to 1,000 units. You can attach the prefix kilo- to just about anything. If something takes 1,000 seconds, it takes a kilosecond. If a forest has 1,000 trees, it has a kilotree. You ge.

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How many dance steps would the square have?and,Construct a multiplication table of all of the squre\'s dance stepes.this group is referred to as D4 pleaseÂ Â do the construct Solution Main types of square dances: US and Canada 1.Traditional square dance 2.Modern Western square dance (MWSD) England 1.Playford 2.Folk dance 3.Ceilidhs Ireland 1.ceili 2.set dancing Scotland 1.scottish country dance While the standard formation for a square dance is four couples in a square, there are many variations on the theme. These dances show some examples: >Ninepins: a square with one extra person in the middle >Winter Solstice: a square with one extra couple in the middle >Hexitation: a square with two couples in each of the Head positions. >Twelve Reel: a square with three people on each side, normally a man with a lady on either side of him. Modern choreography also includes dances which morph from one form to another. There are contra dances and four couple longways sets which turn into a square dance part of the way through the dance and then back to the original formation. Grid Squares are dances where the squares are arranged in a grid, sets carefully aligned across the room and up and down the room. The calls move dancers from one square to another in intricate patterns. .

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How has the physician-patient relationship changed over the past century? Are the changes good or bad for the delivery of quality healthcare? Solution How has the physician-patient relationship changed over the past century? Rationing occurs when the physician decreases time spent with a patient, when decisions are made on withholding life support in terminal cases, and with regard to the availability of specialized equipment and specialized physicians. Are the changes good or bad for the delivery of quality healthcare? these are good because maximize savings, managed care has added new forms of rationing: rationing by delay, rationing by denial, and rationing by dilution .

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How is repetition of components different from redundancy? How are the design principles of redundancy and simplicity related to one another and the concept of dependencies? Solution As nouns the difference between repetition and redundancy is that repetition is the act or an instance of repeating or being repeated while redundancy is the state of being redundant; a superfluity; something redundant or excessive; a needless repetition in language; excessive wordiness. Simplicity â€“ not so much as the opposite principle to complexity, but rather the characteristic of a simplicity of operation and design so that the system\'s performance and interaction with other related system elements can be easily understood; Redundancy â€“ the system, or parts of it, should be designed so that it can be backed-up by other redundant parts, or have its parts/modules easily replaced by cannibalising less important parts of the same or other systems to keep it functioning; .

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How is communication a part of best practices? Solution 4 Leadership Best Practices for Increasing Engagement Through Communications 1. Encourage Employees to Be Vocal One best practice managers can utilize to enhance communication involves encouraging employees to be vocal. Leaders should make themselves available to employees. When dialogue occurs between supervisors and their team members, active listening should be the norm. Encourage employees to ask questions and get clarification for anything they do not understand. When employees realize managers want to talk to them and answer questions, they will be more willing to ask. Misunderstandings will decrease, and Engagement will rise. Managers should consider how to present each of their messages in the most clear, informative, and interesting way, thus encouraging employees to listen. Information and updates will be more valuable when presented frequently and concisely, such as after staff meetings. With constant communication, employees will not be overwhelmed by a sudden influx of new information, and will be better able to understand the messages presented. Regular meetings and check-ins should be established as well to keep the dialogue flowing. 2. Promote Honesty & Accountability Another best practice to enhance Communication includes being honest and accountable. Managers and leadership should make sure they are always truthful when speaking with employees. They should hold themselves responsible for promises made. Do not make promises that cannot be kept. If an issue arises preventing execution, inform employees as soon as possible, and present an alternative to resolve this issue. Otherwise, employees .

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How does the National Society of Professional Engineers Code of Ethics promote safety, health and welfare to the public? (2 - 3 paragraphs) Solution Preamble Engineering is an important and learned profession. As members of this profession, engineers are expected to exhibit the highest standards of honesty and integrity. Engineering has a direct and vital impact on the quality of life for all people. Accordingly, the services provided by engineers require honesty, impartiality, fairness, and equity, and must be dedicated to the protection of the public health, safety, and welfare. Engineers must perform under a standard of professional behavior that requires adherence to the highest principles of ethical conduct. I. Fundamental Canons Engineers, in the fulfillment of their professional duties, shall: Hold paramount the safety, health, and welfare of the public. Perform services only in areas of their competence. Issue public statements only in an objective and truthful manner. Act for each employer or client as faithful agents or trustees. Avoid deceptive acts. Conduct themselves honorably, responsibly, ethically, and lawfully so as to enhance the honor, reputation, and usefulness of the profession. II. Rules of Practice Engineers shall hold paramount the safety, health, and welfare of the public. much more ate web page III. Professional Obligations .

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how does cinchona catalyst work Solution Catalyst working: 1) Catalyst increase the rate of reaction 2) To turn reactants into products activation energy is required. 3) If molecules do no posses enough energy when they collide they will not react. 4) A catalyst provides an alternative route for the reaction to take place with a lower activation energy. Cinchonine find their main application in the field of organic chemistry in the synthesis of enantiomerically pure compounds, where quinine and quinidine are also widely used. As chiral bases, they have been employed as resolving agents for acids through preparation and subsequent separation of diastereomeric salts, in chiral chromatography and as chiral ligands for asymmetric synthesis.Cinchona alkaloids have been described as â€œprivileged chiral ligands and catalystsâ€ with the presence of the basic tertiary quinuclidine nitrogen the key to their synthetic utility. 1) Cinchona Alkaloids Are Versatile Catalysts.These are just a few of the reactions that can be performed asymmetrically. 2) Cinchona Alkaloids have been explored in asymmetric synthesis 3) Cinchona Alkaloids as Phase Transfer Catalysts(PTC) .

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How does the evolution of attack tools affect existing systems? What steps should an organization take to remain vigilant of these new methods for compromising systems?Â Â Â (Cybersecurity) Solution Answer:- On securing information , there are tools and techniques .Tools effectively seek to mitigate outdated barriers to sensitive administrative data in an effort to compromise trade secrets ,private information and other intellectual property .Moreover,it is important that the organization remain aware of the everchange threats that emerge on an almost immediate basis . this is especially true when conducting periodic system reviews and final system reviews, desingers can then address and install new security guidelines for the different software components that may be particularly vulnerable to new threats .Mapping the security of the system through devlopment , analyzing and documenting zero day attacks and encompassing such attacks in your red teams attack map for penetration testing some of the steps an organization can take in ensuring a secure software system . keeping up to date with the latest attack tools and utilizing these tools to continuously test the security posture of the software system allow organization .

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How do you think the DATA Act will impact governmental entities and stakeholders? I\'m not looking for political arguments. Solution By replacing inaccessible documents with standardized, searchable data--freely accessible to all--the DATA Act will create better accountability for taxpayers and citizens; improve federal management by illuminating waste and fraud; and reduce compliance costs by automating the creation of reports by grantees and contractors. Better accountability . Once federal financial statements, budget actions, grant reports, and contract reports are available as open data, rather than trapped in inaccessible documents, tech companies will be able to make the data fully searchable for citizens, taxpayers, and companies More effective federal management . Government-wide data standards for spending will allow Big Data analytics to illuminate waste and fraud. Coaltion members showed how at the DATA Demo Day on Capitol Hill in May 2013. Automated compliance . When federal agencies begin collecting grant and contract reports as standardized data instead of as documents, solutions like Parrascope and AmpliFund will help grantees and contractors comply with existing reporting requirements more cheaply than they can today. .

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How do I determine the Rf Value with just the information I have provided? As for the Ion, are they looking for a poistive or negative answer? Rf= distance traveled by component/distance traveled by the solvent I just took a piece out of my homework so I can complete the rest Hopefully I will learn and then know what I am doing. Results Data Table for Unknown A Distance Solvent Traveled (cm) 7.0 Spot Color Distance Traveled (cm) 1.3 *Rf Calculated lon Present Unknown A Component 1 Unknown A Component 2 Brown with light spots Brown with light spots 4.6 4.9 Unknown A Component 3 Brown with light spots Solution For unknown A component 1: R f = (1.3 cm) / (7.0 cm) = 0.186 or 0.19 For unknown A component 2: R f = (4.6 cm) / (7.0 cm) = 0.657 or 0.66 For unknown A component 3: R f = (4.9 cm) / (7.0 cm) = 0.7 For the \'ion present\' column, it is being asked what ion is present in the unknown A which is determined by referencing to the R f values of the known compound and it\'s components. For example, first you are given a known compound having a ion (say given compound is NaCl which we know it contains Na + ions). Now paper chromatography for NaCl is done and R f values are calculated & noted for Na + ion. Now in second experiment you are given an unknown compound and you perform the paper chromatography and calculate the R f values. If R f value of Na + (from first experiment of known) matches with the R f value of unknown (from second experiment) then we can say that unknown compound contains Na + . This Na + is the ion which is being asked as \'ion present\'. .

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How do I print a list of payroll checks for the calendar year to date sorted by net pay from largest to smallest. The list should include the following columns from left to right: employee name (Employee), net pay (Amount), date, and paid through. Please explain the steps my textbook doesn\'t explain how to do this and it\'s really frustrating. Solution 1. Gather employee wage information. Make sure it includes all wages, tips and compensation in the pay period. 2. Check to ensure that you have W-4 information for each employee to determine their marital status and withholdings. This will determine their tax liability for Federal Income Tax. 3. Calculate employee\'s gross pay from employment agreement or time sheet. Include tips, commission and overtime, if applicable. 4. Determine withholding amount for Federal Income Tax. Go to the IRS Publication 15 (Circular E). Choose either the Percentage Method or the Wage Bracket Method and use the appropriate chart. 5. Calculate employee amounts for Social Security Taxes. 6.Calculate employee contributions for Medicare Tax. 7.Determine state and local tax liabilities based on your locality. 8.Deduct additional employee items such as retirement and savings plans, health insurance, charitable contributions or garnishments. 9.Process payroll manually or through your selected system. .

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How does SO 2 in the atmosphere affect global warming?Â Â Â In general, what are the consequences of SO 2 in the atmosphere? (This should be current (no older than 5 yrs. old) since our understanding has improved in the last 5 yrs. or so. In discussing general consequences, please make sure to include acid rain and an explanation of what it is.) Solution Sulfur dioxide (SO 2 ) is a colourless gas with a sharp, irritating odour. It is produced by burning fossil fuels and by the smelting of mineral ores that contain sulfur. However, SO2 oxidizes to H2SO4, which gets involved with aqueous chemistry and often leads to sulfate (SO4). Sulfate is an aerosol that will reflect sunlight (like many aerosols) and block energy input to the Earth. If you increase the amount of sunlight being reflected back to space (reducing the amount of sunlight absorbed by the surface of the Earth), there is a net cooling affect. Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain. Sulfur dioxide and nitrogen oxides dissolve very easily in water and can be carried very far by the wind. As a result, the two compounds can travel long distances where they become part of the rain, sleet, snow, and fog that we experience on certain days. .

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How does an awareness of the historical link between the United States and China help explain the current relationship between the two countries? (Please do not copy/paste irrelevant information, I will report it) Solution Answer The us and china historical link helped in many ways like laws in both countries passed after taking into consideration the effectiveness of laws in one another country. The foundation of US and China relationship is based on Trade, Faith and Freedom which can be demonstrated with help of below examples: 1 . Americans have been interested in China for a long time. In 1784, when the American War for Independence was barely over, the first ship to sail under an American flag left New York. It was the merchant ship Empress of China , bound for Canton (now Guangdong), China. At first, the American interest in China was economic. Americans were looking for new markets to buy goods, as the British refused to deal with Americans. And the Chinese preferred to work with Americans, who bought Chinese goods. The Europeans only wanted to sell them things. By the middle of the 19th century, though, the relationship had grown. American churches led the way, seeking converts to Christianity among China .

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How do you utilize PM software to manage team activities? Solution Project Management is the process and activity of planning, organizing, motivating, and controlling resources, procedures and protocols to achieve specific goals in scientific or daily problems. A project is a temporary endeavor designed to produce a unique product, service or result with a defined beginning and end (usually time-constrained, and often constrained by funding or deliverables),undertaken to meet unique goals and objectives typically to bring about beneficial change or added value. The temporary nature of projects stands in contrast with business as usual (or operations), [4] which are repetitive, permanent, or semi-permanent functional activities to produce products or services. In practice, the management of these two systems is often quite different, and as such requires the development of distinct technical skills and management strategies. The primary challenge of project management is to achieve all of the project goalsand objectives while honoring the preconceived constraints. The primary constraints are scope, time, quality and budget. The secondary .

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how do the different architectures of a polymer affect their properties? Solution Polymers are affected by molecular weight and crystallinity. Linear polymers - single chains, flexible , van der Waals between molecules. Branched polymers - side branches , packing is less efficient, lower density,less crystalline than linear. Branching also affects chain entanglement, the ability of chains to slide past one another, in turn affecting the bulk physical properties. Long chain branches may increase polymer strength, toughness, and the glass transition temperature (T g ) due to an increase in the number of entanglements per chain. From an adsorption point-of-view, the bottle-brush homopolymers have the ability to attach to the surface through both side chain and backbone segments. If adsorption occurs through the attachment of the side chains on the surface, then the polymer attains a flat conformation at the interface since the gain in adsorption energy increases with the number of contact points between the side chain segments and the surface Dendrimers are a special case of branched polymer where every monomer unit is also a branch point. This tends to reduce intermolecular chain entanglement and crystallization. A related architecture, the dendritic polymer, are not perfectly branched but share similar properties to dendrimers due to their high degree of branching. .

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How do phospholipid bilayers maintain specific concentrations of solutes inside and outside the cell? a. The interior of the bilayer is packed too tightly for any molecule to pass through b. The interior of the bilayer is too hydrophobic for charged or polar groups to pass The interior of the bilayer is solid-like preventing anything from passing through The exterior of the bilayer is too charged for any solute to get close The exterior of the bilayer is too hydrophobic for any charged or polar group to get close c. d. e. Solution The phospholipids in the plasma membranes are arranged in two layers, called a phospholipid bilayer. Each phospholipid molecule has a head and two tails. The head is hydrophilic, that is, it loves water and points outward. The tails are hydrophobic and these water hating tails are on the interior of the membrane. Molecules that are hydrophobic can easily pass through the plasma membrane because they are water hating like the interior of the cell. Charged or polar groups acts as hydrophilic substances so they do not pass through the plasma membrane because they are water loving like the exterior of the membrane. So they are excluded from the interior of the membrane. So option (b) is correct . .

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how would a police department exhibit different structure and procedures under the crime control model than it would under the due process model? Solution Two models of crime: the due process model and the crime control model posses their own advantages and disadvantages Due process model provides an each and every people have equal rights and they cannot be underprivileged of life, liberty, or property without proper legal procedures. When people are arrested due to a crime then also they have their own rights such that they does not harm anyone and it is facilitated by Due process model. There are various dissimilarities in-between the due process model and the crime control model: The due process model thinks that people who are arrested by means of any event there ma be a chance that particular person doesnot do it anything and somebody involve him in this case. So he will be protected until it was proven and statement should be given by the court. Where as the Crime Control Model Process states tha the person who was arrested is right person who has done all those crimes so that particular person must be punished accordingly with respect to the safty of the remaining public. Crime control system believes that if it had done by maintaining the Due process it will take long l But the due process has equal rights to all the people because in some situations the people who did not do the crime also has a chance that somebody involve them into this crime. So we have to give chance to prove themselves that they are not accused so generally the court fallowes the due process model that says that every one are equal before the law. .

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How will you close your knowledge gap, Is your mind geared to re-think what you think you know? Solution The knowledge gap theory was first proposed by Tichenor, Donohue and Olien at the University of Minnesota in the 70s. They believe that the increase of information in society is not evenly acquired by every member of society: people with higher socioeconomic status tend to have better ability to acquire information (Weng, S.C. 2000). This leads to a division of two groups: a group of better-educated people who know more about most things, and those with low education who know less. Lower socio-economic status (SES) people, defined partly by educational level, have little or no knowledge about public affairs issues, are disconnected from news events and important new discoveries, and usually arenâ€™t concerned about their lack of knowledge. Core Assumptions and Statements The knowledge gap can result in an increased gap between people of lower and higher socioeconomic status. The attempt to improve peopleâ€™s life with information via the mass media might not always work the way this is planned. Mass media might have the effect of increasing the difference gap between members of social classes. .

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How to do web application testing on a website checking it\'s (Functionality, Interface Usability, Compatibility, Performance and Security testing ) using tables in word document or excel sheet? Solution Web Testing in simple terms is checking your web application for potential bugs before its made live or before code is moved into the production environment. During this stage issues such as that of web application security, the functioning of the site, its access to handicapped as well as regular users and its ability to handle traffic is checked. 1. Functionality Testing In testing the functionality of the web sites the following should be tested: â€¢ Links i. Internal Links ii. External Links iii. Mail Links iv. Broken Links â€¢ Forms i. Field validation ii. Error message for wrong input iii. Optional and Mandatory fields â€¢ Database * Testing will be done on the database integrity. â€¢ Cookies * Testing will be done on the client system side, on the temporary Internet files. 2. Usability testing 3.Interface Testing 4.Database Testing 5. Compatibility testing 6.Performance Testing 7. Security testing 8.Crowd Testing .

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How to make a Mic 1 L2 instruction set that takes in user input through a Mic1 simulator for both multiply and divide and give out the answer and the divide include both output and any remainder. Solution .main //taking inputs for performing multiplication //for taking first input for multiplication IN // request character input from memory DUP // duplicate top of stack (inputed char) for comparing BIPUSH 0x0 // push 0x0 for comparison //for taking second input for multiplication IN // request character input from memory DUP // duplicate top of stack (inputed char) for comparing BIPUSH 0x0 // push 0x0 for comparison //for multiplying IMULT //output of multiplication OUT //taking inputs for performing division //for taking first input for division IN // request character input from memory DUP // duplicate top of stack (inputed char) for comparing BIPUSH 0x0 // push 0x0 for comparison //for taking second input for division IN // request character input from memory DUP // duplicate top of stack (inputed char) for comparing BIPUSH 0x0 // push 0x0 for comparison //for multiplying IDIVI //output of division i.e, quotient OUT //output of division i.e, remainder OUT DONE: HALT .end-main .

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