E104 Newtons Second Law of Motion free essay sample

The experiment that was conducted was primarily about Newton’s second law of motion. Newton’s second law of motion states that a net force is required for a body to have acceleration. If a net force is applied on an object, then the object will accelerate with respect to the direction of the said force. The body’s acceleration is directly proportional to the net force and inversely proportional to its mass. The experiment conducted was used to verify the relationships specified in Newton’s second law of motion. There were 3 trials, and these were. Constant Mass, Varying Net Force B. Varying Mass, Constant Net Force C. Varying Mass, Varying Net Force In the said experiment, the formula used for the calculation of the experimental acceleration was: As for the accepted value, the formula used was: For the first trial, the net force changes when the mass of the mass hanger changes. The net force, N, is obtained by the equation of m2g, where m2 represents the hanging mass, and g is the constant gravitational pull, which is 9. 8m/s2. The results of part A can be seen in the table below. Mass of cart, m1 = 0.51kg Distance traveled, s = 0. 5m TRIAL m2 Net force, Accepted acceleration Time of travel Experimental acceleration % ERROR 1 0. 02kg 0. 19N 0. 36m/s2 1. 50s 0. 44 m/s2 22. 22% 2 0. 04kg 0. 39N 0. 71 m/s2 1. 06s 0. 89 m/s2 25. 35% 3 0. 06kg 0. 58N 1. 05 m/s2 0. 88s 1. 29 m/s2 22. 86% 4 0. 08kg 0. 78N 1. 32 m/s2 0. 72s 1. 92 m/s2 45. 45% 5 0. 10kg 0. 97N 1. 59 m/s2 0. 67s 2. 28 m/s2 43. 40% Figure A: The setup for Constant Mass – Varying Net Force There was a large factor between the accepted acceleration and the experimental acceleration. This was because in the experimental acceleration, the factors used were only the time of travel, t, and the distance s, which is the distance traversed by the cart, which were concepts of kinematics. As a commonly known and used example in the concept of kinematics, a rock drops to the ground in the same rate as a piece of paper; however, this is assuming that the rock and paper are placed inside a vacuumed tube without any air. In the said scenario, the forces pulling the objects downward would be equal; hence the objects would arrive at the ground at the same time. In the accepted acceleration, the formula used also considered the hanging mass, m2, not just the given acceleration due to gravity. The reason as to why there is a considerably large margin between the two accelerations will be explained later on. Based on the data, it can then be said that the net force is directly proportional to the acceleration. For the second trial, the constant term is the net force, which means that the hanging mass is also constant. N is again represented by m2g; the results of the second part of the experiment can be seen below. There were increments of 0. 1kg per trial, and the total hanging mass was 0. 1kg. Total hanging mass, m2 = 0. 1kg Net Force, m ­2 ­g = 0. 98N Distance traveled, s = 0. 5m TRIAL Total mass of cart, m1 Accepted acceleration Time of travel Experimental acceleration % ERROR 1 0. 51kg 1. 92m/s2 0. 62s 2. 60 m/s2 35. 42% 2 0. 61 kg 1. 61 m/s2 0. 67s 2. 23 m/s2 38. 51% 3 0. 71 kg 1. 38 m/s2 0. 74s 1. 83 m/s2 32. 61% 4 0. 81 kg 1. 21 m/s2 0. 77s 1. 69 m/s2 39. 67% 5 0. 91 kg 1. 08 m/s2 0. 81s 1. 52 m/s2 40. 74% Figure B: The setup for Varying Mass – Constant Net Force Similar to the first experiment, there was a relatively large margin with the experimental and accepted acceleration. In this part, the acceleration kept decreasing as the mass of the cart increased. This additional mass acts as a counteractive force to the force that is pulling it down, which is gravity. Since the counteractive force got stronger as the weight increased, while the acceleration due to gravity remains the same, the force that pulls it down is weaker due to the counteractive forces. A good analysis of this would be the usage of vectors and scalars; in the concept of vectors, if one traverses a distance of x N of E, and again, traverses a distance of y in the direction S of W. The displacement would be either N of E or S of W, depending on the magnitude of the said vectors. In the same way, since the force pulling downwards is stronger, the cart would be pulled in the direction of the mass, and in the same way, the acceleration decreases as the cart gets heavier. From this, it can be said that the mass is inversely proportional to the acceleration. As for the last trial, both the mass and the net force varied. The only factor constant in the second experiment is the distance. The results can be seen in the table below. Distance traveled, s = 0. 5m TRIAL m1 m2 m2g a (accepted) t a (experim. ) % ERROR 1 0. 51kg 0. 02 kg 0. 19N 0. 36m/s2 1. 5s 0. 44 m/s2 22. 22% 2 0. 61 kg 0. 04 kg 0. 39N 0. 60 m/s2 1. 09s 0. 84 m/s2 40. 00% 3 0. 71 kg 0. 06 kg 0. 58N 0. 75 m/s2 0. 94s 1. 13 m/s2 50. 67% 4 0. 81 kg 0. 08 kg 0. 78N 0. 88 m/s2 0. 87s 1. 32 m/s2 43. 12% 5 0. 91 kg 0. 10 kg 0. 97N 0. 96 m/s2 0. 82s 1. 49 m/s2 55. 21% The setup for Varying Mass – Varying Net Force In the final part of the experiment, there was still a relatively large margin of error. In this part, the acceleration still went up even if the mass that was being added on the cart was relatively larger than the hanging mass (20 times the hanging mass = cart’s additional mass). Again, the reason why the cart is getting pulled even with a considerable weight advantage is because of the concept of gravity. As it has been stated earlier, since the relationship of acceleration to mass and net force can be represented with: The said equation is Newton’s second law of motion; k is a constant in the said equation. The reason why there was a considerably large margin of error may be due to the fact that the distance used was only 0. 5m. Should the trial have gone any longer, and the results might have been toned down to as little as 10% error since the computations could have been more accurate with a prolonged test run on each trial. Additionally, the mass of the picket fence was not taken into consideration in the calculations. The string’s mass is considered negligible in this scenario. The rest of the possibilities lie on human error – the track’s movement, the photo gates’ movement, is a few good examples of the possible human errors. The group noticed the displacement of the dynamics track from the beginning of the experiment (aligned the edge with the table) and the end of the experiment (a few millimeters away from the table). The photo gates also sometimes when the track moved as well. Lastly, another major factor to consider is the fact that the cart might not have been aligned exactly to get an initial velocity of 0. E104 was concentrated on the analysis and application of Newton’s second law of motion. The group had successfully done all three parts of the said experiment, albeit with a large percentage error. The errors were factors that could have been altered, but were also factors too tedious to consider. Nevertheless, within the analysis of the said experiment, there was proof of Newton’s second law of motion. In the first part, it was seen that the net force is directly proportional to the acceleration. Additionally, in the second part, it was seen that the mass is inversely proportional to the acceleration. Lastly, in the final part of the experiment, the data gathered from the first two parts of the experiment showed the proof of Newton’s second law of motion. Overall, Newton’s second law of motion is essentially an in-depth version of the concepts of kinematics, where mass and net force is taken into consideration. With the addition of the said factors in the equation, then the results that can be yielded are potentially more mathematically accurate. The experiment has successfully verified the authenticity of the said law of motion.

Art Essay on Ohio Pottery free essay sample

Lawton had actually been in the pottery life style for a long time he used to work for Florence Pottery in Mt. Gilead, Ohio. He used to work as the General Manager there until it burned down. The real beginning of his career was when he was 13 and he started to work for The Ohio Pottery Company and he just went on from there. During all the years that the company was operational there was no change in owner ship until he sold it and it became something else, the company had another building at one point and it was completely dedicated to creating lamp bases. But at some point in time there was a accident and the building burned down. After that they were moved to the main building and they had centralized production. There isn’t much information that was left behind about Gonder Pottery, so we don’t know how many people worked there. We will write a custom essay sample on Art Essay on Ohio Pottery or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Now if you had wanted to buy a piece today that the company had made there is a wide variety of items and the price range is from $4 all the way to $2500! As I had mentioned earlier that there is very little information left about this company for whatever reason but from the information we do have I was able to deduce that they mostly made vases but they are known for making good lamp bases. Generally they use stoneware in all their pottery and they were known for a few of their glazes too. Their special glazes were Flambe glaze which Gonder described as â€Å"fire red with streaks of yellow† and there was the gold crackle finish. There weren’t really any reoccurring themes in their work because it was mostly mass production type things. Their pieces were actually really cheesy; the pieces were like butterflies and just animal heads and things of that cheesy nature. They did have a back stamp on their pieces there were a few but they were pretty generic it said things like: GONDER, GONDER USA, ect. This is one of the stamps they used later on, on pots. The Gonder Company had many lines of production but most of their ceramic pieces used solid colors or a slight mixture of two dark colors where the difference is so miniscule. Their pieces are mostly smooth looking with not much texture except for maybe a few waves. Although they did have some textured pottery but major of them were smooth. They liked to use organic lines in a lot of their pottery and mostly used warm colors with the occasional cool color here and there. Many of Gonders pottery has a sort of natural feeling like you have seen something like it before in nature but it usually has some sort of twist to it. The first picture is that of a pot which has fish heads at the bottem but the shape and colors make it look like something out of the ocean. Also something to notice is the colors on the pot they look as though they are dripping down which is seen in a lot of Gonder’s Pottery. Vintage Gonder Pottery Vase, 1950s Gonder Pottery Fish Vase, made in Zanesville, Ohio. Made in USA, 8 1/2 tall, Private Collection 1950s Gonder Pottery Vase, 1950s Gonder Pottery Shell Vase, made in Zanesville, Ohio. 6 1/2tall 13 1/2 wide Vintage Gonder Pottery Vase, 1950s Gonder Pottery Vase, made in Zanesville, Ohio. 9 tall. Vintage Gonder Pottery Lamp, Vintage 1950s Gonder Pottery TV Light, made in Zanesville, Ohio, 8 1/2 tall 12 across. Gonder Pottery Chinese Vase, Vase has original sticker that reads Authentic Chinese Interpretations by Gonder, 8 tall. Vintage Gonder Pottery Vase, 1950s Gonder Pottery Flower Vase, made in Zanesville, Ohio, 7 1/2 tall. Time Line December 8, 1941Deed signed for new company. January 12, 1942First shipment sent out. Feburary 25, 1942First piece of cermaric art shown to the Grahm Weaver Realty Company. Feburary 1943Gonder no longer has any affiliation with the company it was making molds for. 1946Buys more factories and incorperates

Mongols dbq free essay sample

The Mongols Empire in the 13th century was known best for their great conquests on large territories. Their empire included large territories from the Asian lands and as well as some parts of Europe. Mongols Empire grew rapidly during this period due to the success of conquests. Their key factors that played a major role into their success of conquests was mostly due to their tactics on invasion and raids, their great leadership disciplinaries for political organization and divides, and as well the submissions of surrender by other landholders. Complied along the Mongols Oral Tradition, in the 13th century, they included The Secret History of Mongols that had the information on the traditions and tactics that were used during the Mongol invasions of Chu-yung Kuan. This gives us a sense of how trickery and tactics used during the Mongol period. The Secret History of Mongols was most likely written by the Mongols during the time of raids and attacks on other landholders, because it was written by the Mongols it may have given a tone that was favorable to the Mongols. We will write a custom essay sample on Mongols dbq or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page As Mongols, they sought these tactics to be witty and were proud of these achievements and tactics (doc. 1). The Monks in Novgorod wrote The Chronicles of Novgorod that explained the killing of raids and attacks upon Novgorod near Russia. They sought these Mongols to be monstereous and heartless with their violence due to their random killing of good men and women including priests and nuns. These monks described the Mongols terrifying. As monks, it’s all about peace and serenity and when the raid happened seeing their good friends being priests or nuns killed affected the to speak with hatred and discontent towards the Mongols describing them as killers, monsters and killing for no reason (doc. 2). Additional documents like the specific tactics used such as terror tactics or perhaps a journal written by a Mongol soldier during the fighting and how he thought of himself when tricking poor men into their death may help the better understanding of how the trickeries helped the Mongols conquests over large lands.

Using TOEFL Essay Samples For Your TOEFL Test

Using TOEFL Essay Samples For Your TOEFL TestAt the point of writing your TOEFL essay, you need to make sure that you choose essay samples that are appropriate for your learning style. You also need to make sure that the TOEFL exam is timed so that you have a time frame that you can work with. The easiest way to remember this is by thinking of the last two digits of your birthday, and your written word will follow suit.To start off with, you need to be aware of the mindset that you have, as a writer, when you are reading a sample of the writer's work. This is because you need to be aware of how you see yourself. If you are able to be honest about this with yourself, then you will find that it is much easier to understand how a TOEFL writing sample can help you. Once you are able to understand the mindset that you are in, then you will be able to use the language that you write in order to convey the message that you want to get across.When you begin to think about sample essay sample s that you might use in the TOEFL test, you will find that you have quite a few options that you can choose from. Many times, you will find that they are very specific to the learning style that you will need to focus on. There are different TOEFL writing sample exams that you can use to help you learn to write as well as write effectively. You will find that these help you learn the basics of writing so that you will be able to move on to more advanced material.One of the most important aspects that you need to understand when choosing essay samples is the fact that there are some things that you will need to pay attention to. The first thing that you will need to do is make sure that you take a look at how many lines of text there are. You also need to pay attention to how many sentences per page there are as well as how many paragraphs per paper.You also need to keep in mind the amount of space that you will need. This is because it will play a major role in how many questions yo u will be able to answer in your essay. If you find that you are pressed for space, then you should look for the TOEFL writing sample that is small enough that you can easily fit it into your notebook.Remember, too, that there are several other things that you need to pay attention to. You need to know how many questions are available, how many passages you need to answer, and how many parts you need to use. A TOEFL essay sample can help you put all of this information together in order to make sure that you are prepared for the TOEFL.It is also helpful to make sure that you don't need to memorize anything. You will find that there are multiple TOEFL essay sample tests that you can choose from. As long as you know how to use them, then you will find that they are a great resource for you to use.By using TOEFL essay samples, you will be able to start preparing for the TOEFL test that you need to take. By making the right choices when it comes to writing sample, you will be able to pr epare yourself for the test. In addition, you will be able to learn and apply the concepts that you need to be able to write effectively, which is one of the most important reasons that you should study for this test.

Benefits of Drinking Tea Essay Example

Benefits of Drinking Tea Essay Example Benefits of Drinking Tea Essay Benefits of Drinking Tea Essay Benefits of Drinking Tea Tea contains antioxidants. Like the Rust-Oleum paint that keeps your outdoor furniture from rusting, teas antioxidants protect your body from the ravages of aging and the effects of pollution. Tea has less caffeine than coffee. Coffee usually has two to three times the caffeine of tea (unless youre a fan of Morning Thunder, which combines caffeine with mate, an herb that acts like caffeine in our body). An eight-ounce cup of coffee contains around 135 mg caffeine; tea contains only 30 to 40 mg per cup. If drinking coffee gives you the jitters, causes indigestion or headaches or interferes with sleep  switch to tea. Tea may reduce your risk of heart attack and stroke. Unwanted blood clots formed from cholesterol and blood platelets cause heart attack and stroke. Drinking tea may help keep your arteries smooth and clog-free, the same way a drain keeps your bathroom pipes clear. A 5. -year study from the Netherlands found a 70 percent lower risk of fatal heart attack in people who drank at least two to three cups of black tea daily compared to non-tea drinkers. Tea protects your bones. Its not just the milk added to tea that builds strong bones. One study that compared tea drinkers with non-drinkers, found that people who drank tea for 10 or more years had the strongest bones, even after adjusting for age, body weight, exercise, smoking and other risk factors. The authors suggest that this may be the work of teas many beneficial phytochemicals. Tea gives you a sweet smile. One look at the grimy grin of Austin Powers and you may not think drinking tea is good for your teeth, but think again. Its the sugar added to it thats likely to blame for Englands bad dental record. Tea itself actually contains fluoride and tannins that may keep plaque at bay. So add unsweetened tea drinking to your daily dental routine of brushing and flossing for healthier teeth and gums.

Public relations process for Deltec Essay Example | Topics and Well Written Essays - 1500 words

Public relations process for Deltec - Essay Example The CEO has asked for a range of services from our agency including the advice for a major labor issue faced by the company in the recent past. A detailed analysis was made in this regard to help Delstar to come up with same market share as that of its male athletic equipments. The following paragraphs will discuss the issue in detail to find a way out and help Delstar to survive and succeed in the market. Our agency, therefore, suggest a range of efforts to be performed by Delstar to compete with other firms in the industry and to become a threat for them in the years to come. The company has to conduct a couple of researches in this regard. To start with, our agency advices Delstar to conduct a market research so as to know the pulses of the target group. The first and foremost task in the effort of marketing any product /service is to know whether there are consumers for the desired product/service in the market. So knowing about the market is advisable before thinking about the product and its features. Once the consumers' taste and preferences are well understood, the company can start thinking seriously about the product design and development. Because, our agency believes firmly in 'Prevention is better than Cure' policy in marketing. Market Research is the process of gathering data relating to the consumers, competitor and the market and use of such data for decision making and actions. A market Research is indispensable for Delstar not only because it is going to introduce a novel product to a new target group, but the competition from industry icons such as Reebok, Nike, and Adidas is quite stiff. The target group for the new product, Basketball sneakers, has already been fixed by the company and it is female market. It is co mposed of both basket ball players and those who are fascinated by the style of basket ball sneakers and players. Market Research Method The process by which the data from target group are collected and analyzed is known as Market Research Method. Delstar is advised to conduct a Qualitative Market Research as it involves the study about the market feasibility of a new product, and a focused group. The focused group for the study, as already stated, consists of female basket ball players and female teenagers and women who are fascinated by the style of sneakers and basket ball players. Data are collected from the focused group by means of personal interview with them. In the basket ball players segment, female players are approached with an Interview Schedule to gather data. In the second group, a sample survey was conducted among teenagers and women who like basket ball sneakers for daily use for easy and comfortable walking. The players were asked mainly about their views on the sneakers presently available and their expectations about the one which is like to be launched in the market. An interview schedule is to be prepared with logically arranged questions on consumers' needs and aspirations about the product. In addition to the interview with focused group, a one-on-one in-depth interview with a renowned basketball trainer is also prescribed for the company since it is likely to generate more authentic and reliable information. The survey among the non-players female group is conducted using Random Sampling Method wherein the opinion of respondents are more likely to be

Assessment and intervention in Addiction Essay Example | Topics and Well Written Essays - 2500 words

Assessment and intervention in Addiction - Essay Example Paul, a 27 year old, has been an injecting drug user and has been presented at a local Alcohol and Drug Assessment Service, six weeks after release from prison. He opposes treatment but attendance is a condition of his parole and has numerous convictions for burglary, assault and possession of drugs for supply. Paul has been convicted for burglary, assault and possessions of cannabis, numerously. Initially, he had had a motor cycle accident at 19 and has not worked since. Since then, he has had anger and impulse control problems. Assessment reveals that Paul had no specific plans to harm anyone in particular, but possesses a firearm and states his willingness to shoot himself and others with him. The head injury also left him prone to anger, impulse control problems, short-term memory impairment, poor concentration and inability to work. Paul has a history of childhood conduct disorder and abuse of drugs and substances such as alcohol and cannabis, benzodiazepines and polydrug. He also used intravenous opioids regularly from 19 years of age and continues to use cannabis daily and occasional benzodiazepines. On direct questioning, Paul has admitted to depressive symptoms since his most recent incarceration, and met DSM IV-R criteria for a diagnosis of Major Depressive Episode over the past six weeks. The patient is also hepatitis C positive and admits to having shared needles, besides engaging in unprotected sex especially when using benzodiazepines. He has also had little contact with his family and lives with friends who use intravenous opioids on a daily basis. From the foregoing it is clear that there may have been correlations between the prevailing affairs in Paul’s social environment and his penchant for substance reliance and drugs abuse. This is underscored by the fact that Paul began to engage in drugs abuse and substance reliance at a relatively young age. Particularly, Paul has a history of childhood drugs and substances abuse of such as alcohol