Simple Harmonic Motion Lab Report Essays

Simple Harmonic Motion Lab Report Essays Simple Harmonic Motion Lab Report Paper Simple Harmonic Motion Lab Report Paper Essay Topic: Simple Motion Lab Report Introduction Simple harmonic motion is the motion of a mass on a spring when it is subject to the linear elastic restoring force given by Hookers Law. In this lab, we will observe simple harmonic motion by studying masses on springs. In the first part of this lab, you will determine the period, T, of the spring by observing one sliding mass that is attached to two springs with the spring constant k, and attached to a hanging mass by a string and a pulley. The next part, you will determine the period, T, of oscillation caused by two springs attached to either side of a sliding ass. By knowing the velocity in the second part, you can find kinetic energy and potential energy of the oscillating mass. Also, you must find the uncertainty in the period, kinetic energy, and potential energy. Procedure In this experiment, you will determine the experimental and theoretical period of a spring, the kinetic energy and potential energy by measuring the spring constant and velocity of a spring. In this first part of this lab, you will have a sliding mass on a frictionless air track attached to two springs on one side, and attached to a hanging mass by a string and pulley on the other. First you must calculate the mass of the sliding mass and the equilibrium displacement of the spring. The rest of the first part requires you to add 20 grams to the hanging mass and then measuring how far the sliding mass has moved for the equilibrium position. That number will be your delta x. Do that method five times and then solve for the spring constant through the formula: (Delta m) g = k (Delta x). The values of k that you solve for will be plugged into the formula: T = 2 (pi) (radical m/k). The period that you solved for will be your theoretical period. In part two of this lab, you will attach a spring on either side of a sliding mass on a frictionless air track and have a photo gate measure the period as the mass oscillates. Repeat that procedure for three more times and at each trial, add 20 more grams to the mass. The period that you get is your experimental period. The next step is to record the velocity of the oscillating mass to solve for the kinetic energy and potential energy. After finding the theoretical and experimental periods, you must make a graph comparing the two with error bars on the theoretical period. To find the uncertainty in the theoretical period, use the formula: Conclusion Through experiment, we have been able to calculate a value for two different kinds of periods of an oscillating mass, the kinetic energy, and the potential energy. A photo gate, which is connected to a frictionless air track that supports the sliding mass, records the period and velocity of the oscillating mass.

Analysis Memorandum

Analysis Notes Summary This is an analysis note that recommends using the Microsoft Access database in the security department infrastructure. Many security administrators rely heavily on using Microsoft Excel spreadsheets to track employees, security breaches, inspection plans, and training. Spreadsheets are an effective means of performing complex calculations, but spreadsheets are also limited to show the quality of the relationship between the security data associated with a particular field and the query. The following documents provide some suggestions for drafting predictive legal analysis. The form of proposal of the Memorandum of Understanding of the Ministry of Justice, the structure of the working draft, the sample memorandum of understanding and the advanced sample memorandum show the facts of the traditional structure emphasizing specific legal problems and their answers followed by merely legal significance I will. The resolution of de facto legal issues depends on - an d the applicable legal rules, the facts applied to the case, and the arguments about the possible refutation of key analysis items. One of the most difficult parts of writing a legal memorandum is to reach a defensive conclusion when the law is uncertain or applicable to your facts. Since the purpose of the memo is to answer the raised legal question, you can not just leave there saying that the law is not clear. You must believe that your research and analysis skills will allow you to provide reasonable answers. The discussion section is in the center of the memo. It interprets and analyzes the law and provides a place to apply it to your facts (the term integration will let you guide you through this section). For each individual legal issue included in the Memorandum, the discussion section should be divided into separate sections; subheadings are useful here. The discussion of each question should include an introduction, an explanation of applicable legal rules, application of rules to legal issues, and conclusions on the problem.

Oxaliplatin Essay Example | Topics and Well Written Essays - 3500 words

Oxaliplatin - Essay Example This was developed following discovery of cisplatin in an attempt to reduce the problematic side effects of cisplatin. This is administered intravenously, and till date, no commercially viable orally active agent has been reported to be accepted for therapy3,4. Like cisplatin, oxaliplatin is also associated with quite a few dose-limiting adverse effects, which include myelosuppression along with others5. These are neurotoxic side effects that include sensory peripheral neuropathy which can be dose limiting. The other side effects include gastrointestinal disturbances and ototoxicity, while renal function may be normally monitored during therapy6. In this assignment contemporary literature will be reviewed to address the effects of oxaliplatin genotoxicity on human lymphocytes by using various cytogenetic techniques. Oxaliplatin contains a cyclohexyl and a pentadilactone ring, which will be evident from its chemical structure in a later section7. This has been approved for treatment of metastatic colon cancer in combination with 5-fluorouracil and folinic acid8. Therefore, this is a diaminocyclohexane (DACH) platinum compound9. This was considered as a probable chemotherapeutic agent since it demonstrated preclinical activities in some cisplatin-resistant cell lines and xenografts10. Oxaliplatin is an important member of this DACH platinum group of compounds. Its preclinical activity against colorectal cancer has been studied in great detail. It has been suggested that oxaliplatin has a greater extent of cell kill in resistant cancers since therapy with this agent may result in greater resistance to repair mechanisms leading to affected recovery of cancer cells11. This has been attributed to the size of the DACH carrier ligands, resulting into a bulkier platinum-DNA adduct in comparison to that created by cisplatin12. The inhibitory effects of platinum compounds have been ascribed to formation of inorganic platinum compounds in presence

The Concept of Linear Regression Essay Example | Topics and Well Written Essays - 500 words

The Concept of Linear Regression - Essay Example However, a multiple regression models comprises of a single independent variable with multiple independent variables. For instance, stock returns are dependent on interest rates, risk, dividend payout ratio and various other variables. The most common example of simple linear regression is market index model. It assumes that the returns on the stock are only dependent on market returns (Elton & Gruber, 2007). Observations of the market often reveal that as the market goes up, the stock also follows the same direction. This implies that stock returns are correlated with market returns thus we can relate it to the stock market index. An example of multiple regression is cited in the literature by Lusztig & Schwab (1970), where multiple regression analysis was used to estimate the insurance expenses (dependent variable), through commission, profit and contingencies and premium taxes (independent Variables). Minimum least (sum of squares) method is used to estimate the model for regression equation. The values are chosen in such a way that the (vertical) distances from the data points to the fitted lines are minimized (so that the line fits the data as closely as possible). The figure below shows the best-fitted line for a simple linear regression model. For instance, there is a general perception that there are indications that "soda and sweetened drinks are the main sources of calories in American Diet," therefore most of the nutritionists recommend that soft drinks can be detrimental to health if they are consumed excessively.

Monopoly :: essays papers

Monopoly The Monopoly a) Using Australian examples describe the characteristics of the two of the following forms: Monopoly Oligopoly The main characteristics of an oligopoly are: Â · The market is dominated by only a few companies, which are relatively large. Â · The production of identical products which are similar. Â · There are significant barriers to entry. Â · The interdependence of production decisions within the market. An Oligopoly market exists in which a small number of firms dominate the supply to an entire market. Each firm producers a very similar product. In Australia the oligopoly is the major market form. It is because Australia is so small market located far from overseas markets and this thus requires producers to be larger, so they are more competitive. There are hundreds of examples of oligopolistic industries, e.g. cars (Holden), breakfast cereals (Kellogs) This market form does not only depend on the larger producers, but the recognition of their interdependence, the action of one producer will affect the actions of others and each oligopoly firm watches their rivals closely. Oligopolies compete fiercely for market share, therefore the competition for existing or new consumes is intense, as each producers products are very similar. As a result oligopolists have little influence over price. For example Shells petrol is very similar to Mobil petrol, therefore these two companies watch each other closely. Oligopoly firms attempt to make their products different in the eyes of consumers. This can be achieved in many different ways. Firstly by providing quality improvements in goods or services such as electrical sound equipment, secondly by different packaging or wrapping, thirdly by bonus offers or prizes on purchase, for example Just Jeans offering free sunglasses. The more product differentiation among oligopoly firms, there is a more chance of each firm has being independent from its rivals when setting price or output. It is hard for new firms with a small market share to enter the oligopoly market and produce enough to make the product cheap for consumers to buy. The small amount of large firms can often produce large amounts of quantity to provide for all consumers to purchase. It is difficult for new firms to win market shares form existing producers, particularly if those firms have large advertising budgets, licenses, design patents or restrict access to raw materials on one way or another.

Creating a Safe Environment: 2-4 year Olds Essay

As an early childhood provider working with 2-4 year old children I will be sure to provide a safe, healthy, and appropriate indoor and outdoor learning environment that helps their developmental characteristics. When preparing my indoor learning environment as well as my outdoor learning environment I have to take into consideration each child; their needs, their skills, their backgrounds, etc. For my indoor learning environment it is extremely important to make sure that the area is welcoming for the students as well as the parents, I will make sure that the area is lit properly (natural light and/ or energy saving bulbs) and full of colors. The furniture in the classroom will be child sized and very sturdy. Children will also be assigned their own cubbies where they will be able to place their knapsacks and other belongings (this gives them a hint of independence). There will be different sections of the classroom for different activities (reading area, drama/pretend play area, ci rcle area, music area, etc.), not just for play but will enhance their social, emotional, physical and cognitive domains. I will also make sure that the entire classroom is cleaned on a daily basis and all toys are sanitized. I will also be sure that all sockets are covered with protectors and make sure that there are smoke detectors and fire extinguishers and an evacuation plan in the facility, as well as having clear pathways in case of an emergency. In the kitchen area I will make sure that all cabinets so children will not be able to have access to any hazardous materials as well as any foods. Also in the kitchen area I will have a bulletin board accessible to all kitchen staff to list the name of the children in the facility and their allergies (if any). In the restroom I will be sure that all toilets and washbasin’s are to the children’s reach so they can be more independent and for those who are being potty trained be sure that there are more than enough and be certain that they are cleaned (by an adult) after every use. Children will be encouraged to wash their hands often to reduce the spread of germs to each other. For  the outdoor learning environment, I will definitely make sure that the area is properly gated; there is no high grass or trash around on the floors. I will also make sure that the children have easy access to the restrooms, and be sure that there is a first aid kit handy. I definitely will make sure of the child to teacher ratio; this helps with keeping an eye on the children, which helps reduce the chances of one of them being seriously hurt. I will also make sure of the following: â€Å"Selection of play equipment is appropriate for children’s ages, play equipment is in good condition (e.g. no broken or rusty parts, missing pieces, splinters, sharp edges, frayed rope, open â€Å"S† hooks, or protruding bolts), Large pieces of equipment are stable and anchored securely in the ground; finishes are non-toxic and intact, Equipment is placed sufficiently far apart to allow a smooth flow of traffic and adequate supervision; an appropriate safety zone is provided around equipment, and, a variety of play surfaces (e.g. grass, concrete, and sand) is available; shade is provided† (Marotz, 2012), just to name a few. One thing that we have to keep in mind as an early childhood provider is the relationship between a person’s safety, health and nutrition. Parents entrust that their children are well taking care of each time they drop them off in our care; they want to make sure that they are feed a well-bal anced healthy and nutritional meal, and that they are safe from danger, so how is it that some may feel that these three things are not related. In my personal opinion they work hand in hand and very much so dependent on each other. Health, safety, and nutrition are very much so interrelated. Health is a state of wellness. Complete physical, mental, social, and emotional well-being; the quality of one element affects the state of the other; safety refers to the behaviors and practices that protect children as well as adults from unnecessary harm; and, nutrition refers to the science of food, its chemical components (nutrients), and their relationship to health and disease. It includes all of the processes, from the ingestion and digestion of food to the absorption, transportation, and utilization of nutrients, and finally the excretion of unused end products. Nutrients are essential for life and have a direct effect on a child’s nutritional status, behavior, health, and development† (Marotz, 2012). I cannot help but to agree with these examples given and it is best to have children practice these things as young as possible. In the 2-4 year old age group children  really mimic what they see us doing as adults. So if we eat healthy, exercise and practice thi ngs such as good hand washing, what do you think they will do? There are so many age-appropriate learning activities and toys that reinforce the important of health, nutrition, and safety for the 2-4 year old age group. I have listed a few that really caught my attention. This game will be considered a group game, this game teaches the children to identify their alphabets (upper and lower case) as well as their number; this game is called â€Å"Homemade Letter Bingo†, as we know â€Å"children learn through play. And letter or number bingo is a great place to start. The following items needed for this game are: printable bingo cards: numbers, alphabet, or numbers and letters, printable caller cards, small objects to use as markers, such as marshmallows, cereal, pennies, or M&M’s† (Richards, 2014). A second learning age-appropriate activity is that of â€Å"Cereal Patterns†: Practice patterning the fun way—by playing with your food! Using a Fruit Loop-type cereal and yarn, help your preschooler create crunchy, edible patterns. The following items needed for this learning activity is that of: Fruit Loops or other loop-shaped cereal in a variety of colors, small bowls or cups, age-appropriate scissors, yarn or string, and masking tape† (Edwards, 2012). Building blocks are great toys for children (whether blank or with letters on them). With building blocks it helps children in this age group (2-4 years old) with their problem solving skills, but what you will find most amazing is what they build out of the blocks. A nd another toy that will be considered age-appropriate is that of a kitchen set that will be located in the drama/pretend area. With this toy children pretend that they are chefs working in nice restaurants, they pretend that they are a parent cooking a nice meal for their families and the list goes on and on. But what I find so amazing with this age-group is that there is no limit to their imagination. However, we as educators have to continue to encourage the children to use their imagination, because they not only learn from us, we learn from them. An ideal location, space, and security of a center or school is very important, not only to the early childhood provider, but to the parents as well. â€Å"Nowhere is health and safety more important than in group programs serving young children. When families enroll children in a program, they expect that the teachers will safeguard their child’s well-being. They assume the facilities, toys, and  equipment will be safe for children’s use, that teachers will carefully supervise their children’s activities, that the environment is clean, and the food is healthy. These expectations require teachers to be well informed and knowledgeable about how to create and maintain environments that protect and promote childrenâ€℠¢s health and safety† (Marotz, 2012). We have to make sure that there is adequate space for the children to move around inside and outside; it is good to also make sure that the facility is not in a noisy location where the children can be easily distracted. But most of all we have to think about the health of our little ones, we have to make sure that the building is properly inspected so we can protect them as well as ourselves from potential hazards. As early childhood providers/educators it is our sole responsibility to make sure that the children that we care for will be given the best education and protection, this includes their safety, nutrition and health. One thing that I live by and believe is that the children are our future, so it is our duty to mold them from young. I choose to work with the age group of 2-4 year olds because the one thing that amazes me with them is their imagination which increases their ability to learn. As an educator for such young children you have to able to open enough for them to teach you as well. I feel that Reggio Emilia Approach said it best â€Å"children are capable of constructing their own learning† (Isbell & Raines, 2007). References: Bradford-Edwards, S. (Sept. 7, 2012). Cereal Patterns. Retrieved from http://www.education.com/activity/article/fruit-loop-patterns/Isbell, R.T., & Raines, S.C. (2007). Creativity and the arts with young children. Belmont, CA: Delmar. Marotz, L.R. (2012). Health, safety and nutrition for the young child 8th edition. Belmont, CA: Wadsworth Cengage Learning. Richards, S. (May 9, 2014). Homemade letter bingo. Retrieved from http://www.education.com/activity/article/letterbingo_preschool/

The Radio-Television News Directors Association Code of...

CODE OF ETHICS AND PROFESSIONAL CONDUCT RADIO-TELEVISION NEWS DIRECTORS ASSOCIATION The Radio-Television News Directors Association, wishing to foster the highest professional standards of electronic journalism, promote public understanding of and confidence in electronic journalism, and strengthen principles of journalistic freedom to gather and disseminate information, establishes this Code of Ethics and Professional Conduct. PREAMBLE Professional electronic journalists should operate as trustees of the public, seek the truth, report it fairly and with integrity and independence, and stand accountable for their actions PUBLIC TRUST: Professional electronic journalists should recognize that their first obligation is to the public. Professional electronic journalists should: ? Understand that any commitment other than service to the public undermines trust and credibility. ? Recognize that service in the public interest creates an obligation to reflect the diversity of the community and guard against oversimplification of issues or events. ? Provide a full range of information to enable the public to make enlightened decisions. ? Fight to ensure that the publics business is conducted in public. TRUTH: Professional electronic journalists should pursue truth aggressively and present the news accurately, in context, and as completely as possible. Professional electronic journalists should: ? Continuously seek the truth. ? Resist distortions that obscure the importanceShow MoreRelated Public Video Surveillance Essay1435 Words   |  6 Pagesgoals much faster. Human interaction between people has decreased because of this technology. The changes continue daily with an endless stream of new ideas and ways of doing things. There seems to be no end in site. This technology is also changing our moral and ethical values along with the way we employ them. 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