Impact of the invention of Automobiles Essay

The creation of car has been one of the most critical components that have contributed towards the change of the world. Before the development of car it was exceptionally troublesome and tedious to make a trip starting with one spot then onto the next. Man has become the ace of his own time because of the vehicle. Presently he can design his own calendars and deal with his time all the more proficiently and valuably. Car gave a lift to the world economy. Oil was an item that was in plenitude however was to a great extent unused. With the development of car it began getting utilized and furthermore supported the expectations for everyday comforts of the individuals of the nations where it is accessible the most for example the Middle Eastern nations. In spite of the fact that there was sufficient living space in all the mainlands of the world, individuals used to live grouped in the territory that was closest to their work. Accordingly those working in production lines used to live near it regardless of the wellbeing perils it made. With the creation of the vehicle individuals had the option to chop down their wellbeing dangers by moving endlessly to cleaner places with better air to inhale but then figure out how to answer to function inside the specified time less any problems that previous significant distance voyaging incorporated. All the administrations got quick. The fire fighters, the specialist, and the police officer would all be able to reach on schedule and continue ahead with their work that is amazingly dire. Numerous more up to date benefits got made for example the dispatch administration that flourishes with the advantages set somewhere around the development of car. Consequently the financial state of the world has absolutely and decidedly changed with the innovation of the car. Be that as it may, tragically there have likewise been sure negative results of the creation of the vehicle. The quantity of passings on streets has expanded because of this cutting edge need. Likewise the world has become a considerably more dirtied spot to live in view of the harmful exhaust that autos make. Be that as it may, on the off chance that we look at the negative and positive effects of the development of vehicle on the world everywhere then we can't deny the way that the positive effects eclipse the negative effects. Best of all, in the event that individuals are cautious, at that point these negative effects can be disregarded totally. Man can't think living without the car and maybe its innovation is the best thing that has happened to the world. References Colorado.edu. (2009). Negative Impact of the Automobile. Recovered Jun. 1, 2009 from  â â â http://l3d.cs.colorado.edu/frameworks/agentsheets/New-Vista/vehicle/negative.html Nosotoro, R. (2007). Effect of the Automobile. Recovered Jun. 1, 2009 from  â â http://www.hyperhistory.net/apwh/expositions/bed/t4w32automobile.htm

Water Report on Jakarta Essay Example for Free

Water Report on Jakarta Essay I am keeping in touch with you in regards to water supplies for the inhabitants in Jakarta. There are deficiencies of clean water around the region and occupants need to walk miles away to get water for their organizations and family. Anyway the neighborhood individuals need something closer so they don’t need to travel that additional mile. There are two alternatives in which we can help there individuals in Jakarta: Choice one is having a Global water organization. (Worldwide Water Company is the point at which you have an agreement and you pay for the measure of water you use. ) Alternative two is having water co-usable. (Water co-usable is the point at which the individuals are the proprietors and they have the have a voice in the control of the association, and most of the standards.) Having visited Jakarta I diagram the advantages and downsides for inhabitants and organizations. A mother, Andina Hamid needs to travel miles for clean water for food, washing, cleaning, etc. A frozen yogurt merchant, Ali Firhand needs water for his organizations for making the dessert and furthermore needs water for his family. Once Ali couldn't get hold of clean water thus he had no picked yet to make his frozen yogurt with to water else he would free his organizations, anyway the following day every one of his costumers had protests about stomach issues because of messy water. Wisnu Wijaya is a food and beverages merchant and she likewise needs clean water for her food and for cleanliness. She needs clean water to make her food and beverages. In any case on the off chance that she doesn’t have clean water so she would free her costumers and free her business. At last a businessperson, Reynard Hanoppo who runs a furniture shop, has all that could possibly be needed water. He has running taps at home and he has a pool and was never shy of water. The focal points and disadvantages for choice one, the Global Water Company for the individuals above are: Andina Hamid who is mother would profit by the Global Water Company since it would furnish Andina and her family with new clean water and would improve wellbeing and cleanliness conditions. Anyway she would endure when her agreement with the organization lapses and she wouldn’t have anything to go on to. Ali Firhand, a dessert vender would pick up from the Global Water Company since it can work with neighborhood occupants to improve wellbeing conditions and would furnish him with clean water. Anyway the equivalent goes for him when the water company’s contract terminates there might be issues to look with propping the water framework up. Wisnu Wijaya, a food and beverages dealer would profit by the organization since she would just compensation for the measure of water she uses and it would be sheltered as she most likely is aware it is perfect. Anyway it is a burden too on the grounds that private water organizations could assume the expenses of laying the funnels and associating with the homes to it fundamental channels and this may build the expense. Reynard Hanoppo, an agent would profit by the Global water organization in light of the fact that the more water he utilizes the less expensive I would be, so channeled water would be especially uplifting news for individuals who have a great deal of water. Anyway the equivalent goes for him when the water company’s contract lapses. The favorable circumstances and downsides for choice two, the Water Co-usable for the inhabitants in Jakarta are: Andina Hamid who is mother would profit by the Water Co-employable since it would the individuals in Jakarta may show signs of improvement in the event that they cooperate as a major aspect of a co-usable. Anyway the business taps would be increasingly expressive in light of the fact that you would need to dive enormous gaps in the ground for the channels to convey the water to the homes. Ali Firhand, a frozen yogurt merchant would pick up from the Water Co-usable on the grounds that it is simpler to care for and it would be useful for what's to come. Despite the fact that Ali may need to heat up the water to murder the germs and microscopic organisms so he could utilize the water for his frozen yogurt. Wisnu Wijaya, a food and beverages dealer would profit by the Water Co-employable since it would last more and it is more grounded. She additionally realizes she will never get let somewhere near the Water Co-employable than she may do with the Global Water organization if her agreement lapses with them. Anyway she may need to pay more for the water on the off chance that she needs taps, etc. Reynard Hanoppo, an agent would profit by the Water Co-usable in light of the fact that there would be water there for him 24 hours per day, through a portion of his water might be messy and could get sick from it.â Keeping the things above as a top priority my recommendation are on the Global Water Company would be valuable in light of a legitimate concern for Jakarta individuals. As a shortcoming of water collaboration could be that the mass of individuals may lose enthusiasm for running the association and let a little gathering take it over and oversee it for their own advantage. Additionally with the Global Water Company you would have no concerns as there would consistently be 100% of clean water not at all like the co-employable. The main downside being is the recharging of the agreement, anyway there is continually going to be an interest of water.

Guncontrol essays

Guncontrol papers As a rule, weapons have been a significant issue for quite a long time upon years. The danger of weapons in urban areas and towns is astounding. Numerous individuals in the United States are battling to boycott weapons all over the place, others think they ought to reserve the privilege to possess a firearm without any inquiries posed. Thinking about the measure of handgun passings, numerous individuals ask the question Are weapons slaughtering individuals or are individuals murdering individuals? Numerous individuals are in the battle to increase stricter laws on weapons, Yet just the same number of are against the possibility of stricter laws. Weapons began to turn into an issue in the late 1970s and early 1980s. In 1977 firearms were the weapons utilized in around 70% of the killings in the United States.(Encarta Online) 60% of all homicide casualties in the United States (around 12,000) were executed by guns, what's more, 70,000 were harmed. During the mid 1980s Hip Hop and Rap got famous. This expanded the quantity of firearm clashes significantly due to the picture of a rapper.(Dennis, Debate) Heavily populated urban communities had an expanding measure of packs during this time.(Dennis, Discussion) The packs would sell medications and go through weapons to back them if a bargain went bad.(Dennis, Debate) Guns were effortlessly gotten to due to the overwhelming group activity.(Dennis, Debate) People were being shot regular therefore in these groups. Numerous individuals were attempting to battle the spread of firearms and get a stricter law on availability to weapons. Individuals who need firearm control have a difficult time persuading government authorities to take care of business. The Republican controlled Congress has questions in light of what the Second Amendment said about firearms. Handgun Control Inc. (HCI) stated, The Second Change represents no danger to the laws influencing the private ownership of guns, and this likely could be the most settled recommendation in protected law.(Dennis, Debate) HCI likewise composed a letter... <!

A Modern Modest Proposal free essay sample

A Modest Proposal for Disposing Homelessness in the United States Every city or town I have ever visited is influenced by the plague of vagrants. The most evident spots where the seriousness of vagrancy is shown are significant urban communities in the United States, for example, New York City, Chicago, and Los Angeles. In spite of the fact that the official number of vagrants in the United States is obscure, everybody can confirm the volume of vagrants that they have experienced in the course of their lives. Our unimaginable nation is exposed to such blemishes breathing in our well deserved cash, and I accept this must be halted. Not exclusively are vagrants taking our assets, however they are likewise putting a strain on everything that is in us and brains, as we feel terrible for these individuals’ conditions. As American residents, it is our obligation to secure the respectability of our country and consistently move in the direction of a superior life; this is the reason we should order my arrangement to utilize vagrants to further our potential benefit. My answer for our destitute issue is a straightforward one; we will sell every single vagrants to well off Americans as slaves. To authorize this arrangement, we will gather the vagrants off the road either energetically or forcibly, since this arrangement will be genuinely advantageous to them. In the wake of gathering every single vagrants, we will have sell off houses arrangement in soup kitchens and sanctuaries, seeing as they will never again be utilized for their unique purposes. We will principally closeout the vagrants to the well off Americans, however if necessary, we may offer the people to individuals from acculturated nations. At the point when destitute families are brought to the closeout houses, they will be sold as a unit; be that as it may, just close family members will be sold together, for example, guardians or watchmen with their youngsters. Any kids that are unloaded will be required to go to class during the week and work twenty hours for their lords and work full â€time on ends of the week. This law is fundamental for it will guarantee that the youngsters will be instructed with the goal that they may better themselves. Anybody that is sold when the person in question is more established than eighteen will be a slave until their lord bites the dust; slaves won't be passed down to family members. In the event that these slaves come back to the lanes, they will be re-unloaded to an alternate affluent ace. Youthful slaves will be sold for more cash than slaves who are more than forty years of age. The advantages that join this arrangement won't just improve the personal satisfaction vagrants have, yet it will improve our country. To start with, vagrants will receive the best rewards from this arrangement. By turning out to be slaves, the vagrants will consistently have a spot to rest. Vagrants will rest either in their master’s home or in their very own exceptional hotel. What's more, the vagrants will be given food and water each day; something they would not have in the event that they kept on living in the city. Dress will likewise be furnished to slaves if necessary alongside washing openings. For the kids, they will presently be able to go to class and get instruction when they would not have had the option to something else. These arrangements of fundamental needs and different necessities as experts see fit will improve these peoples’ lives monstrously. Another advantage of this arrangement is that with the cash we gather from selling the vagrants, we will have the option to pay off our national obligation. As of February 2013, America’s national obligation is $16,649,703,459,968 (U. S. ). Our national obligation is anticipated to reach more than seventy trillion dollars in ten years and near 200 trillion dollars in twenty years (U. S. ). This obligation is developing exponentially, and my arrangement will help moderate this expansion under water. In New York City alone there are more than 50,000 individuals every late evening snoozing sanctuaries and one in each 2,688 individuals is destitute (Bosman). Selling every vagrant for an as much as 5,000 dollars will help start our excursion towards a diminished obligation. In the year 2012, Americans contributed almost 8,000,000 dollars of their own cash to help pay off the national obligation, yet they scarcely made a mark (Smith). With this additional gift, we will have the option to have a huge effect. Alongside this, selling the vagrants will permit us to close down all safe houses and food kitchens since there will be no requirement for them. In these spaces, we will hold the closeouts so we should pay lease; in any case, we will no longer need to gracefully food, apparel, or some other thing to the destitute. Around four billion dollars is spent yearly on destitute people and families by state governments and private gatherings (Fahy). Adding to this, the central government spends around 2. 9 billion dollars forâ federal destitute projects each year (Fahy). Not going through this cash will help our state governments set aside cash and our central government set aside cash each year. Another incredible advantage of selling vagrants is we will no longer have filthy individuals littering our avenues and taking our cash. Whenever somebody visits a significant city in the United States, this individual is both ered by endless vagrants asking for their well deserved cash (Jurkiewicz). In these circumstances, individuals feel frightened by the unclean individual and fear this communication (Jurkiewicz). For the individuals that breeze by the destitute, they will in general feel awful for their activity while the individuals who do offer cash to the destitute are left with the dread that they will purchase liquor or medications; in any case, this is a dilemma (Jurkiewicz). Selling these vagrants will free our general public of these sentiments and cumbersome experiences, in a perfect world improving our lives. Migrating our destitute won't just take care of our vagrancy issue, it will help lessen the quantity of illicit migrants in our nation. In the United States, there are more than 4,000,000 illicit settlers attempting to take our occupations (McClellan). Utilizing the vagrants as slaves for affluent individuals will dissuade them from recruiting unlawful outsiders to do their housework. Purchasing a slave will thusly be less expensive than paying an illicit worker, and in this way individuals will go to buying a vagrant. Furthermore, these vagrants will in all likelihood communicate in English, which will permit correspondence among experts and slaves a lot simpler. This arrangement I have created is just to benefit our extraordinary country, and I realize that it will end up being invaluable. Bringing down our national obligation, making our lives simpler, and guaranteeing a sheltered situation will permit the United States to thrive.

Cost Analysis of Coca Cola free essay sample

History The starting point of PepsiCo Inc. started with its namesake refreshment, Pepsi-Cola, designed by a drug specialist named Caleb Bradham in 1898 in New Bern, North Carolina. With its principle fixings pepsin and kola nuts, Pepsi-Cola offered an invigorating beverage that was sound and equipped for helping in assimilation realized by the pepsin chemical found in the pop. Generally welcomed by people in general, Pepsi Cola was before long licensed in 1902 and was promptly accessible all through 24 states in America by 1910. In 1935, the Pepsi-Cola Company established by Caleb Bradham failed and was purchased out by Charles Guth. During this time another organization by the name of Frito-Lay began building a business relationship with Pepsi-Cola in would like to broaden Pepsi-Cola’s items. By 1945, the two organizations started cooperating and in 1965, PepsiCo Inc. was shaped with the merger of the two organizations: Pepsi-Cola and Frito-Lay. Headquartered in Purchase, New York, United States, PepsiCo Inc. pecializes in the assembling, promoting and appropriation of grain-based tidbits and carbonated refreshments. It is a worldwide organization that offers its items in North America, South America, Europe, Middle East, Asia and Africa. Over the previous years, PepsiCo Inc. has become disseminated all through 200 nations around the world and has since extended from its namesake item, Pepsi, to a wide scope of food and drink brands, obtaining Tropicana in 1998, and a merger with Quaker Oats in 2001 †including Gatorade as its items. The greater part of PepsiCos piece of the overall industry is gotten from the Americas with Asia and Europe offering 13% and 16% piece of the overall industry, separately. Today, PepsiCo Inc. s items offered incorporate bundled merchandise and drinks with its item blend comprising of 52% refreshment and 48% nourishments. Drinks incorporate 76 kinds of Pepsi-Cola, assortments of Tropicana, and Gatorade. Bundle nourishments incorporate a Doritos, Ruffles, Cheetos, Lays, Tostitos, Cracker Jacks, and so on. (Pepsi drink brand holding a huge market offering). In the course of recent decades, PepsiCo Inc. s piece of the pie has developed consistently to become and remain the top significant bites and refreshment supplier around the world. From its consolidation, the organization has developed itself by securing and stripping numerous huge organizations including however not shy of Pizza Hut, Taco Bell, KFC, and Wilson Sporting Goods. Its long standing fight between the Coca-Cola Company ha s constantly filled the choices the full scale nibble organization has made through the span of its business and in 2005, PepsiCo Inc. had outperformed the Coca-Cola Company in net incomes. Its latest net incomes revealed were $43. billion internationally (2011) and it remains the biggest food/refreshment business in North America and second biggest food and drink business on the planet. Looking to 2012, Indra K. Nooyi, Chairman and Chief Executive Officer of PepsiCo Inc. , expressed, The best test in the business [PepsiCo Inc. ] today is to reestablish an effective organization situating it for long haul development and benefit while acting in the present commercial center. Inside the previous quite a while, PepsiCo. Inc. has been banding together with sound decision bites to grow their portfolio with little spotlight on their center ability, Pepsi Cola refreshment. With an overwhelming multi year venture began in 2007 and executed in the start of 2012, the Pepsi Cola will be centered around showcasing its center item, the Pepsi Cola drink, during 2012 and the years to drop by expanding publicizing use to $500-600 million of every 2012 and productively dealing with their incomes and expenses in the large scale nibble business. As required, PepsiCo Inc. freely reveals its money related information to the SEC (Security and Exchange Commission) by means of the EDGAR (Electronic Data Gathering, Analysis, and Retrieval) framework. This framework computerizes the documenting procedure for PepsiCo and permits present and future speculators to mull over on its budgetary position. Speculators can gaze upward PepsiCo by their Ticker Symbol, PEP, and view a wide range of uncovered data; from the Quarterly Report (Q-10), to the Annual Report (K-10), it is all there. PepsiCo additionally distributes its documenting on their official site, under the Investor tab. Information and Analysis Based on PepsiCo’s 2011 Annual Report, â€Å"Unfavorable monetary conditions may adversy affect our business results or money related conditions. In the midst of higher loan fees, shoppers are restricted with discretionary cashflow which brought about spending cut. Likewise with high financing costs, banks are less inclined to give loan specialists cash because of the requirement for capital. The more tightly loaning norms imply that buyers will decrease spending, and thusly, straightforwardly influences full scale bite and ref reshment utilization and businesses’, for example, PepsiCo Inc. , deals and benefits. Utilizing the least difficult type of quantitative investigation to â€Å"fit† a line to information focuses, High-Low Method, watched estimations of joblessness rates, inside the pertinent range, at ts highs and lows are determined on its effect of PepsiCo’s Net Revenue. Next we will utilize the straightforward direct relapse to get a more profound comprehension of the company’s monetary information. With a straightforward relapse examination, the measure of progress of the needy variable (Net Revenue) is appeared, inside a significant fury, with each unit of progress of the autonomous variable (loan cost). Comparable to Linear Regression Models, the Multiple Linear Regressions will permit us utilize at least two free factors to extend a ward variabel (Net Revenue). At last, we will look att the Time-Series Anlaysis of how the general Net Revenue changes over the span of 2007-2011 for PepsiCo Inc. Beneath in detail are the four techniques referenced above used to froecast the Net Revenue for future periods. Estimating Sales Revenue: High-Low Method The most elevated and least quarterly income for PepsiCo Inc. is $20158 and $7350, separately. The relative quarterly loan cost at the most elevated and least net income is 4. 25% and 4. 84%. The condition got from the High-Low Method is as per the following: Quarterly Net Revenue = 112419. 02 †(21708. 7* Avg. Enthusiasm of Prev. Quarter) Therefore, in connection to PepsiCo’s Risk Assessment, the lower the loan cost, the higher the net income. Anticipating Sales Revenue: Simple Linear Regression Under the straightforward direct relapse examination, the quarterly income condition is as per the following: Quarterly Net Revenue = 63021. 36 †(11093. 40* Avg. Loan cost of Prev. Quarter) Th e signifiance of the condition captures is given by the P-esteem, in green above. Being not exactly . 05 (Y-capture (. 000032) and Slope Intercept (. 0003)), the block determined are fundamentally precise. As to decency of attack of this model, the Coefficient of Determination (R2 of . 519 Quarterly and . 965* Annually), shows a respectably exact prediciton of future results utilizing this relapse model. The chance of the R2 esteem being moderately frail can be because of lower Q1 incomes paying little mind to diminishes in enthusiasm through time. The simpleregression model shows that as quarterly intrigue increments 1%, the income will drop by $11,093,400,00. Determining Sales Revenue: Multiple Linear Regression Under the numerous direct relapse investigation, the yearly income condition is as per the following: Quarterly Net Revenue = 219345. 66 + (. 02*GDP)- (4583104*interest Rate) +(1473067* Infllation Rate) The signifiance of the condition captures is given by the P-esteem, in green above. Being not exactly . 05 for financing cost and Y-catch and more than . 05 criticalness for swelling and GDP, the tesst of essentialness dependent on the p-esteem isn't generous proof Regarding the decency of attack of this model, the Coefficient of Determination (R2 of . 999), shows a solid connection of the mix of these three autonomous factors comparable to Net Revenue. Guaging Sales Revenue: Time-Series Analysis Another technique to figure deals income is with the Time-Series Analysis. This straightforward technique ventures future objective dependent on past results. As noticeable, the pattern for PepsiCo is consistently expanding from year-to-year. Note that after the patterned year, from Quarter 4 to Quarter 1, incomes drop down; notwithstanding, time have indicated that Quarter 1 of the current year is as yet higher than that of the earlier years. From 2007 to 2008, there was a 13% change in income for Quarter 1 alone. In like manner, from 2010 to 2011, a 27% change was appeared. In the 2011 Annual Report, PepsiCo Inc has expressed that item rates has been expanding which has thusly expanded the expense of merchandise sold. Moreover, their ongoing association of quaker oats and accomplice organizations have seen an expansion in spending because of wasteful aspects in their work power. Estimating PepsiCo 2012 Q3 Net Revenue Looking forward, PepsiCo has been pulling together their crusade to sell their center item just as giving a significant work-power cut in the start of 2012. On the off chance that all goes easily, PepsiCo might have the option to accomplish their objective in Q3 of 2012. Utilizing the simmple straight relapse condition to gauge 2012 Q3 Net Revenue, PepsiCo Inc. Q3 objective for net income is $19,424 (in millions) Cost of Goods Sold and Selling and Administration Expense Under Simple Linear Regression model, the Proj. Cost of Goods Sold for Q3 2012 is as per the following: 2012 Q3 COGS = 2590. 4+(. 3131*Q2 2012 Net Revenue) 2012 Q3 COGS = 2590. 4+(. 3131*18204. 3) Proj. 2012 Q3 COGS = $8290. 16 Under Simple Linear Regression model, the Proj. Sell and Admin. Cost for Q3 2012 is as per the following: 2012 Q3 Samp;A Expense = 1021. 1+(. 3019*Q2 2012 Net Revenue) 012 Q3 Samp;A Expense = 1021. 1+(. 3019*18204. 3) Proj. 2012 Q3 Samp;A Expense = $6516. 98 Break-Even Point The Break-Even Point is determined by the Fixed Cost/Gross Margin. Since PepsiCo Inc. selling and organization cost isn't incredibly influenced by volume, we utilize this as our fixed expense. Bre

Managing ADD and ADHD at Work

Managing ADD and ADHD at Work ADHD Adult ADD/ADHD Print Managing ADD and ADHD in the Workplace By Keath Low Keath Low, MA, is a therapist and clinical scientist with the Carolina Institute for Developmental Disabilities at the University of North Carolina. She specializes in treatment of ADD/ADHD. Learn about our editorial policy Keath Low Updated on January 07, 2020 ADHD Overview Symptoms Causes Diagnosis Treatment Living With In Children Hero Images/Getty Images ADD can certainly have a negative effect on your work life. You may have trouble remembering information, managing your time, organizing and prioritizing, screening out distractions, and just getting started on tasks. You may have a hard time figuring out what is important and get bogged down and stuck on irrelevant details. You may find that deadlines seem to sneak up quickly or have a tough time simply planning out your day. Tips for Working With and Around Your ADD ADHD does not have to be limiting. Adults with ADHD can lead to productive, fulfilling, and successful lives. Some of our greatest business leaders, scientists, composers, and artists are known to have ADHD. They focus on their areas of strength rather than on the problems and they use simple strategies to manage their ADHD. How can you manage your ADHD to succeed in the workplace?  Here are some tips for facing those attention problems head-on. If you have an office job, request a private office for work and shut the door while you work to close out distractions. If you are unable to have a private office, ask for a cubicle away from the hustle and bustle of the main work area.Keep the work area clear of clutter. Have designated spots for pencils, paper, a calendar, and a daily planner.Use “white noise, earplugs, or earphones with other soothing sounds to mask the distracting work sounds in the office.Take frequent breaks. Plan them out in your day. Walk to get water at the water fountain, go to the bathroom, and make your way up the stairs for an exercise break. Get out of the office during lunch break for a refreshing walk.Try to have uninterrupted blocks of time during the day. Set your phone to go to automatic voice mail so it doesn’t distract you while on another task. Have a set time in the day to check messages. Write down all the messages.Keep a notepad with you during the day to write down any information you n eed to remember. Post-it notes are also nice for reminders. Try a dry erase board.Avoid over-scheduling your day. Schedule in extra time in casework assignments or meetings take longer than expected.During meetings hold something in your hands to keep them busy.Use a day planner.Make checklists and check off items as you complete list.Break up work into smaller, more manageable chunks.Give yourself small rewards for completed tasks.Get to work early or stay late so you can work when it is less hectic and busy.Ask co-workers to send information to you in writing or email so you can keep better track of it.Set your watch to beep about five minutes before a meeting so you won’t forget. The 7 Best Online Anxiety Support Groups

Density, Definition, How We Calculate It, Examples - 2200 Words

Density, Definition, How We Calculate It, Examples, What Affects It And How (Lab Report Sample) Content: Lab Report for the Density LabName:Section Number:Date of submission1.Density is calculated by dividing the mass of a specific object with its volume. It is a property which characterizes each substance. The mass of atoms, their size, and how they are positioned are related to the density of a substance. Its SI unit is kg/m. Objects which have the same volume but different mass also have different densities. Mass (m) is the quantity of matter in an object and stays the same regardless of the place or circumstances. TheSI unitof mass is thekilogram(kg). It is measured with the aid of a scale. Volume is the amount of space occupied by an object in the three dimensions and it is quantified using the SI unit called the cubic meter (m). It is measured in a different way for liquids and solids. The density is given by the following equation.D=mass / volume or D= m / VIn the case of a rectangular prism like a brick, for instance, there are 3 dimensions that need to be measured first and they are shown below. These are the prisms length, width and height. They will be measured with the help of a ruler or a measuring tape. This depends on the size of the object. After the dimensions are measured in meters (m), the volume can be calculated by multiplying the three dimensions mentioned above. The volume will be in m. The mass can be easily found with the aid of a scale and will be put in kilograms. Then from the above equation, the density is calculated in m/kg.As an example, there is the simple exercise below, where the density will be calculated with specific numbers. There are 3 rectangular prisms which have been weighed with the help of a scale and their mass has been written down in kilograms. Their length, width and height have been measured with the aid of a measuring tape and have been written down in meters. In order to calculate their volume, we have to multiply their 3 dimensions.For the green prism, we have V=0.2m*0.2m*0.3m=0.012md=m/V=24 kg/0.012 m=2000kg/ mFor the yellow prism, we have V= 0.1*0.1*0.4=0.004 md=m/V=77.2kg/0,004 m=19300kg/ mAnd for the brown prism, we have V=0.2*0.4*0.6=0.048 md=m/V=14.4/0.048= 3000kg/ mIf our prism is smaller, the units of its mass and dimensions could be in grams and meters, respectively. In that case, we can have the following example.The mass is again found with the help of a scale. However, since now it is a much smaller object than before, an electronic scale of high accuracy must be used. The mass is found to be 200g. The dimensions are measured with the help of either a measuring tape or a ruler. A ruler can be easily used due to the small size of the object. For the volume, we multiply the height, length and width. Volume of cuboid = Length Width Height = 6 4 5 = 120 cm. Then, the density is easily calculated. Density = Mass/Volume = 200/120 = 1.67 g/cm. This can be converted to the units of SI, but it is better to stay as it is, due to the great number of decimals.3. Whe n we change the temperature of a substance, its volume changes too. It may expand or contract. The vast majority of materials grow in volume if we raise their temperature, while the opposite happens if their temperature drops. This phenomenon is called thermal expansion and thermal contraction, respectively. Thermal expansion happens when an object becomes larger due to an increase in the object's temperature. This is because temperature affects the energy of its molecules. If their energy increases, their movement increases, too. A higher temperature means that the molecules move with a higher speed and more freely than before. As a result, they move further apart from each other so the object expands. As a consequence, the volume of the object will increase. The opposite happens when we remove heat from a material. The amount of matter, however, stays the same.Molecules are not affected by changes in temperature. Their size and number stay the same. They just move closer or apart from each other. That is the mechanism that causes an object to expand or contract if the temperature rises or drops respectively. Water, for instance, can be found in three states. It is liquid in its state at about 20 degrees Celsius. When water is heated, its molecules move in a more free way. When the temperature gets to the boiling point for water (100 degrees Celsius), it changes its liquid state and begins to evaporate. Every liquid has a different boiling point. Gases have molecules that move even more freely and can expand so much that can even expand to cover a whole room. It should be mentioned that the particles in solids cannot leave their fixed places as they have stronger bonds between them, so solids do not show a great change of their volume if the temperature is ...