Analysis of Work, Energy and Power Experiment Essays

Analysis of Work, Energy and Power Experiment Essays Analysis of Work, Energy and Power Experiment Essay Analysis of Work, Energy and Power Experiment Essay Analysis of Data In the first part of the experiment, we use a fan cart and first thing we do it to get the force of the fan cart by tying a string in the fan cart and hang a mass until the system is not moving that means that it is in equilibrium state. The tension in the string is equal so that the hanging mass multiplied by the gravitational pull of the earth which is 9. 8 ms2 is equal to the force exerted by the fan cart. Then we remove the string and turn on the fan cart and then let it move and record the time when it passes the certain distance in the track. We can say that the time that’s being recorded for the four trials is directly proportional to the distance or displacement that being covered by the cart, as the displacement increases the time also increases, and we can also say that the velocity is constant because the fan cart gives off a constant force. The result that we got for work in the four trials is increasing from the first trial to the last trial because we increases the distance it covers and the work is the product of the force and the distance covered by the object. And the power is the rate at which the work is done it is the work done per unit of time which is second. We got the values of power by dividing the work by the time we got in the smart timer reading. And in table 2, we measure the length of the string and the initial height which is the distance of the mass in the table which serve as our reference line. And the using the spring balance we lift the mass in different angles, in trial 1 we use 30Â °, second trial we use 60Â °, third trial 45Â ° and the fourth trial we use 90Â °. As we lift the mass we measure the distance of the mass from our reference line and the horizontal distance of it from its original position and also we record the reading of the force in the spring balance. From those values we compute for the work and the gravitational potential energy of that table. For the work done we use the formula w=mg L 1-cos? and for the gravitational potential energy we use the formula PEg=mg(hf-h0). We must derive the same result with the work done and the gravitational potential energy or close to that because L 1-cos? s equals to hf-h0. There are hundredths discrepancies on the result maybe because of our measurement in the height but we can say that it is also close to each other. Conclusion In this experiment I learn that the greater the displacement the greater the work done with a constant force acting on the system. And also I learn that the work done is equal to the gravitational potential energy. Work, power and energy vary directly to the displa cement or change in height. There is no work done, power and energy when there is no displacement occurs in the system. Energy is just changing from one form to another and it is neither be destroyed nor created. It is the ability of an object to do work and the rate of work with respect to time is called power. And work is just the product of the force and the displacement. The can be positive, negative and even zero depending on the angles between the force acting on it and the displacement done by the object. The gravitational potential energy is the energy stored within an object due to its height above the surface of the earth. To lift a certain object upward, the work must be done against the downward pull of the earth. And it also varies directly to the weight of an object that being lifted, the heavier the object is the higher work or energy is needed to lift it upward. One of the best examples of work, energy and power is when you are walking at a certain displacement, even you are just walking you’re already doing work the force is your weight and multiplied it to the displacement you covered from walking you already compute the work you’ve done and the power is basically the work over the time you covered from walking, the power is the rate of the work you’ve done and the energy is capacity for doing that work which is walking.

How to Run PHP on an HTML File

How to Run PHP on an HTML File PHP  is a server-side programming language that is used in conjunction with  HTML  to enhance the features of a website. It can be used to add a log-in screen or a survey,  redirect visitors, create a calendar, send and receive cookies, and more. If your website is already published on the web, youll need to alter it a bit to use the PHP code with the page. When a webpage is accessed, the server checks the extension to know how to handle the page. Generally speaking, if it sees a .htm or .html file, it sends it right to the browser because it doesnt have anything to process on the server. If it sees a .php extension, it knows that it needs to execute the appropriate code before passing it along to the browser. Process You find the perfect script, and you want to run it on your website, but you need to include PHP on your page for it to work. You could just rename your pages to yourpage.php instead of yourpage.html, but you may already have incoming links or search engine ranking, so you dont want to change the file name. What can you do? If you are creating a new file anyway, you may as well use .php, but the way to execute PHP on a .html page is to modify the .htaccess file. This file may be hidden, so depending upon your FTP program, you may have to modify some settings to see it. Then you just need to add this line for .html: AddType application/x-httpd-php .html or for .htm: AddType application/x-httpd-php .htm If you only plan on including the PHP on one page, it is better to set it up this way: Files yourpage.html AddType application/x-httpd-php .html /Files This code  makes the PHP executable only on the yourpage.html file  and not on all of your HTML pages. Pitfalls If you have an existing .htaccess file, add the supplied code to it, do not overwrite it or other settings may stop working. Always be cautious when working on your .htaccess file and ask your host if you need help.Anything in your .html files that starts with ? will now be executed as PHP, so if its in your file for some other reason (as an XML tag, for example), you need to echo these lines to prevent errors. For example, use: ?php echo ?xml version1.0 encodingIUTF-8?; ?

Financial markets Essay Example | Topics and Well Written Essays - 750 words

Financial markets - Essay Example Financial markets form one of the financial systems that perform an important economic function by providing a channel of funds from the savers to the spenders or the borrowers that contribute to the economic efficiency. Savers use less money than the incomes while the borrowers wish to sped use more money than their income, which ensures that borrower who want to investor is able to undertake out an investment despite less income by selling bonds to the savers (Mishkin, 2012). The financial market is closely regulated promoting safety in the fund channeling from the savers to the borrowers encouraging a large number of institutions to the markets because they feel secure increasing efficiency in the financial markets. Consequently, increased security in the financial markets translates to the overall economic efficiency. Additionally, financial markets improve consumers’ well-being because it allows them to schedule and time purchases better, which contribute towards the overall economy efficiency in a country and from a global perspective. i. Capital markets trade long term securities in which the institutions as well as the individuals trade financial securities (Bacha & Mirakhor, 2013). The capital markets ensure that financial resources are equally distributed across Qatar. They include A number of securities are traded in the Qatar’s financial markets including Sukuk or Islamic bonds, shares/common stock, commodities, derivatives, and currencies. Islamic bonds are bonds that are not meant to for conventional interests, but help in the development of innovative assets that comply with Islamic law. Oil and gas are the main commodities in the Qatar’s commodity market. b) Diversified and broad platform of investment: Financial markets such as stock exchange offer a wider investment opportunity that lead to the economic development in Qatar. Various companies offer diversified types of securities; hence,

Stock Investment Analysis Research Paper Example | Topics and Well Written Essays - 1250 words

Stock Investment Analysis - Research Paper Example in mid-1995, it has experienced a number of achievement and challenges based on its overall performance which have made it get where it is today (Fidelity, 2014). FLCSX and S&P 500 are companies that offer the similar services to its clients in the United States of America. FLCSX has a portfolio that consists of eleven equities section which include health care, financials, energy, consumer staples, industrials, telecommunication services and utilities. Others include materials and customer discretion. These equities made it possible for the company to be ranked position seven after more than five hundred large companies that perform this kind of duty were evaluated by the United States News organization in 2013 and FLCSX appeared at number seven. This means that the year-to-date performance for this company is promising despite it registered an overall return of 16.24%. There are a number of drivers that made it possible for this company to perform well in the market. The greatest contributor to FLCSX success is the financial equity section because of the of the various portfolio mixtures that it has offers to its clients. These mixtures include Charles Schwab that has offered a return of 55%, JPMorgan Chase that had 29.35% and MetLife that had 48%. Charles Schwab and MetLife from the historical perspective have been performing well, thus resulting to the ever increasing interest rates (Fidelity, 2014). Therefore, both companies (FLCSX and S&P 500) registered a 20% share price increment after thus, taking advantage on speculations that the market’s economy was gradually recovering from the recession. Basing on the evaluation done by US News, S&P 500 is also among the companies that registered an excellent year-to-date return of more than 13.80%. In the first quarter of 2013, both S&P 500 and FLCSX gained more than ten points but during the s econd quarter of the same year, their returns decreased thus the former recording a return of 2.90%while the latter

Intermodal Transportation Research Paper Example | Topics and Well Written Essays - 1500 words

Intermodal Transportation - Research Paper Example However, recent findings and literature regarding intermodal transportation ports review a contradictory outcome of these measures. The following paper investigates and discusses the effects of actions taken to up security at ports. Actions taken to improve the security at ports has negatively affected throughput, increasing costs and reducing the quality of operations. In 2005, a research by Ronald W. Tarr, Vicki McGurk, and Carol Jones made the realization that there are dangers facing intermodal transport ports after 9/11 are volatile (Tarr, et al., 2005). This unpredictability arises from the likelihood that terrorists may use intermodal transport to deliver weapons and explosive material. Oversized significance of stepping up security measures in these ports. The article explores the effects of training through collaboration and decision-making and its support of the response of transit organizations in the course of the 9/11 attacks (Tarr, et al., 2005). These effects revealed the substandard quality of intermodal transportation during the attacks and the ways the harmed output during the implementation of the already established security measures. A recent research by Nil Kula Degirmenci and Gul Denktas Sakar recognized number of security-linked challenges the intermodal transportation sector has been dealing with for the past several years (Degirmenci and Sakar, 2012). Among these challenges are piracy and terrorism. The researchers noted that security measures alone could not address the many low-quality operations, equipment, and industry players. Degirmenci and Sakar proceed to propose a system for gaining a general insight of the current security concept in intermodal transportation ports. This system takes into account the legal, innovative, and economic aspects. Consequently, system identifies key elements of security in intermodal transport by concentrating on requirement

Assessment of organization culture Essay Example | Topics and Well Written Essays - 750 words

Assessment of organization culture - Essay Example Thus, in the organization there is a powerful force that determines individual and group behavior of the personnel. Risk taking or innovation is a controversial issue for the companies and the resolution depends on people’s perception (Ben 2015). McDonald’s is oriented on external innovation and it is a client-oriented company. Thus all the innovations are made if clients demand them. The technological and menu innovations affect the work of personnel, which should be always ready for the new and sustainable to stress. However, the principles set by the founder of the company are still thoroughly followed (McDonald’s — Company Overview). Attention to details is a criterion that evaluates how employees are accurate in their work. McDonald’s pays much attention to this aspect of the organization culture, because it is extremely important. Therefore McDonalds’s is focused on this cultural aspect and employees’ performance is mainly examined for their attention to the detail in their work. Accuracy and precision in work is core characteristic of this organization. This characteristic of the organization demonstrates how the employees in organization are result-oriented and focused on the achievements. McDonald’s is a highly result-oriented organization, which measures employees’ performance by the targets the company has achieved People play a very important role in the technology of McDonald’s as a computer, or information system can’t work as quickly as a brain of a person. The majority of information in the kitchen of McDonalds is transferred by people, and computers only provide some help, because data should be transferred very quickly. This aspect refers to organizational culture where activities are organized around team rather than individuals (Ben 2015). The work of McDonald’s is posible only in team, every employee is a part of this team and has his own role. Aggressiveness is

Negative campaign ads in presidential elections Essay

Negative campaign ads in presidential elections - Essay Example Thus, in this type of positive campaign ads, the presidential candidates would basically promote themselves, their values, image as well as their political propaganda, thereby making a persuasive influence on the voters. However, these candidates could also come up with ads to ‘paint’ their opponents in bad light and they will do that by including negative visuals or sounds involving their opponents, as well as alarming statistical evidences and worst case scenarios. As these campaign ads will make a negative effect on the voters about their opponents, presidential candidates and team are increasingly using these negative ads, especially over the last 30 years, with the media also playing a contributing role in it. Each presidential campaign from the earliest times have been witnessing changes, and when one looks at the campaigns during the middle decades of the 20th century, it bordered mainly on positivism, good-heartedness as well as balanced approach. These campaigns exhibited that approach by incorporating apt as well as positive visuals and music, and so those campaigns did not hint any negativity. â€Å"Campaign ads in the ‘50s, ‘60s, and ‘70s tended to rely more on jingles; they were not as hard-hitting as they are today.† (â€Å"Political Mudslinging: Does it Work?†). However, from 1980s till the last elections in 2012, according to political analysts, media and even the public, presidential campaigns have evolved into more of negative campaigns, with negative ads maximally becoming part of those presidential campaigns. This fact was supported by Krupnikov and Easter (100), who stated, â€Å"Over the past 30 years, there has been a tremendous increase in the number of negative ads broadcast during American campaigns.† This fact about increasing negative campaign ads was also validated by researches done by political analysts, as they tracked the political