Physical and chemical changes Essay Example for Free

Physical and chemical changes Essay Challenge #1 — The Penny Problem: The first challenge to complete is the Penny Problem. The radio station is giving the winner of this challenge a prize pack that includes tickets to see his or her favorite band in concert. To start off the challenge, the radio station has placed pennies in a cylindrical glass jar. Each penny is 0.75 inches in diameter and 0.061 inches thick. If the cylindrical glass jar containing the pennies has a diameter of 6 inches and a height of 11.5 inches, how many pennies can fit inside the jar? You must show all work to receive credit. So first I want to fine what the volume of the jar is so I am going to use or Cubed inches Now we know how much space we have inside the jar. Now we have to find the volume of the pennies. Now you will divide 325 by .33 and we find that there is a total of 985 pennies in the jar. Challenge #2 — Tennis Trouble: Now its time to move on to the second challenge called Tennis Trouble. The second challenge is to figure out how many tennis balls fit in a specially designed container. The radio station will give away a prize pack and a pair of front row tickets to the winner of this challenge! Each tennis ball is 2.63 inches in diameter. A sketch of the specially designed container is below. How many tennis balls can fit inside the container? How many more tennis balls could fit into the container if the container’s dimensions are doubled? You must show all work to receive credit. In order to find the volume of this container we are going to have to use two formulas. The first formula will be so we can find the volume of the cylinder. Now we have to find the volume of the cone And after doing that I find that Now all we have to do is add the two together and we will know the volume of the container. Now we have to find the volume of the tennis balls. In order to find the volume of a tennis ball we have to find the area of it. After doing that I am going to divide 87.9 from 5.43 to find how many tennis balls will fit into the container. So a total of 16 tennis balls would fit into the container. If the containers dimensions were doubled then the number of tennis balls would have probably doubled. Challenge #3 — Giant Gum: The Pharaoh Chewing Gum Company has decided to sponsor an additional prize in the radio stations contest. They are giving away backstage passes for the concert! Pharaoh Chewing Gum manufactures a new product they are trying to promote. The new product is a pyramid-shaped gum with a square base. In the spirit of the other challenges, the company has decided to place their pyramid-shaped gum inside a clear glass giant bubble-gum shaped sphere. Each piece of gum has a base measurement of 1 inch and a height of 0.75 inches. The glass sphere container has a diameter of 17.25 inches. How many pieces of Pharaoh Chewing Gum can fit inside the glass sphere? You must show all work to receive credit. Now to find the volume of the sphere we are going to use So the volume of the sphere is 51.8 inches Finally we have to find the volume of the pyramid gum. Now we go ahead and divide them by each other and find that a total of 207 pieces of gum fit into the sphere. Answering the Questions. 1. For the Penny Problem, how much empty space should exist inside the jar after being filled to capacity with pennies? Why doesnt this amount of space actually exist in the jar? There should only be enough room for there to be about 3 or 4 more penny’s but you would not be able to put them into the jar because the pennies are going everywhere and they jar is not made to form around the pennies. 2. Where does the formula for the volume of a cylinder derive from? Give an example and provide evidence to support your  claim. It derives from the formula of area of a circle the only difference between them is for the cylinder you have to what the height is in order to use the formula. 3. In the Tennis Challenge, a cone was used for calculations, and in Giant Gum, the formula for the volume of a pyramid was needed. Pick either the formula for the volume of a cone or the volume of a pyramid and explain where the formula you chose derives from? Give an example and provide evidence to support your claim. This equation is almost like the formula for the area of a circle crossed with the area of a triangle. The differences between them are that for a circle you don’t have to find the height and you don’t have a fraction and for a triangle you don’t use pie and don’t use the radius and the fraction is not 1/3 it is  ½. 4. In Tennis Trouble, the container used for the challenge is labeled A in the image below. If the container’s shape was modified to look like container B, what effect would it have on the capacity (volume) of the container if the dimensions remained unchanged? What theory or principle helps to prove your point? Nothing because they amount of space has not changed just the way it looks has and the theory that supports this is cavallies principle. 5. In Giant Gum, the gum is shaped like a pyramid. What shape do you think would best fit into the container (choose a shape other than a pyramid). Explain why the shape you chose was better and back up your answer with proof such as calculations and writing. I would thing that balls would best fit into the container because it is shaped as a ball. Also if they were shaped as a ball there wouldn’t have been that much space left in the sphere.

The Fight for Womens Rights After the Vote was Gained Essay example --

The Fight for Women's Rights After the Vote was Gained By 1925, both feminist socialists and equal rights feminists believed they had won their battles for women's rights because they had gained the vote. Considering developments in the 20th century, how justified were those beliefs? Winning the vote for women was only the beginning, so those who thought that was the end of the fight had a big surprise coming. The vote was to be for women an instrument to achieve equality. In order for this to happen women had to stick together and only voted for candidates that would work on some of their demands. Even though, it was legal for women to vote, it was still not socially acceptable, so most women who did where considered social outcasts. Due to this accurate position, a great deal of women chose not to vote, and most of those who did vote, did so the same way their husbands or fathers did. Because of that, women as a group where nothing to fear, since they would not cause a shift in the polls, so political candidates ignored women's demands. This fact proved that the fight...

Problem Solving for Yoga Teacher

What is a problem? A problem is a situation in which there is a goal, but it is not clear how to reach the goal. Main Problems faced by a Yoga teacher: 1. Classes with only a few students Yoga teachers may sometimes teach a small class, maybe less than 5 students, here brings a great challenge to a yoga teacher since you need to build up a good connection with your students to really look into the needs of each of the students rather than in generalized terms. This takes time for you to know more about each of his/her students. 2. Teaching classes in different locationsBeing a yoga teacher, you may have to work in different locations for each class, this will involve a high travelling cost and frustration. 3. Problems on marketing your classes and workshops This is essential for you to be an effective marketer in order to grow your business. Even you are working in a large yoga school providing all the marketing collateral for you, you still have to clearly articulate. If you are not working in such a large company, you must be able to answer a question â€Å"Why students should chose you but not these in the large yoga school? 4. Not enough time to practice yoga for own self Many people may have a misunderstanding that when a yoga teacher is teaching yoga, he/she is practicing yoga as well, however, this is not true, and the yoga you are teaching in a class is never the one you are practicing on your own. You may find that you don’t have enough time to practice yoga. 5. Managing illness and scheduled day-off You must have a clear concept that if you don’t teach, you won’t be paid. This is very important to have a good time management on your working schedule. 6.Thinking yourself is not good enough Teaching yoga is an on-going process, sometimes you may face a situation that the way you are teaching is unfamiliar with your colleague. This may make you think you are not better than the others. Lack of confidence in own teaching style is a b ig problem in teaching yoga. 7. A class with students in different cultures Sometimes a yoga class may not only have local students, but also students from all over the world. This may lead to a communication problem to these from other countries. Strategies to solve problemsHeuristic – Heuristic is a strategy in thinking under uncertainty. It is a solution strategy based on past experiences. Thinking with heuristic will give a quick answer, it may, however, lead an incorrect answer or even no answer, as past experiences may not be exactly the same to the current situation. Algorithm – Algorithm is a step by step problem solving procedure that guarantees a correct answer to a problem. Which Strategy should be chosen as being a yoga teacher? The answer is Heuristic. Although algorithm guarantees a correct, this is very time-consuming.The most important thing is the problem you faced in being a yoga teacher is not a simple mathematics question with an exact answer. For e xample, you are facing a class with on more than 5 students, which teaching methods should be used? In this situation, you even have no time to take a step and step procedure to solve the problem, a quick action must be done! Also, there is no exactly correct answer to you which methods must be better, this is based on your past experience. To know more about your problem solving styles!There are two kinds of problem solving styles: Representativeness Heuristic and Availability Heuristic Representativeness Heuristic is a heuristic for judging the probability of membership in a category by how well an object resembles (is representative of) that category. In general, the representativeness heuristic leads to a bias toward the belief that causes and effects will resemble one another. Availability Heuristic is a phenomenon in which people predict the frequency of an event, or a proportion within a population, based on how easily an example can be brought to mind.An event may be promine nt in our memories because it happened recently or because it is particularly striking or vivid. Questions: Which kinds of problem solving styles you are using Situation 1: When you are teaching a class with foreigners, let says students from USA, they are very aggressive and always ask a lots of questions, so you assume all the students from USA have that kind of culture. Next time when you teach USA students, you refer to your past experience to apply in this situation. Ans: Representativeness Heuristic Situation 2:

How may conflict resolution and conflict management...

‘How may conflict resolution and conflict management approaches be applied in educational settings?’ Abstract This assignment will review the nature of conflict, from psychologist theories to what form it takes in an educational setting. In order to apply conflict resolution and conflict management effectively in an educational setting, it is important to understand the background disciplines of conflict and theories behind how humans behave in social settings. Comprehending how human behaviour initiates is the key stepping stone to resolving and managing conflict behaviour between humans. We will examine what the concept of conflict is and what†¦show more content†¦According to Plon, it did not appear in psychological works and literature until 1958, â€Å"and even there it is important to notice it arrives on stage timidly† (Plon, 1974, p391). The study of conflict within human relations became popular after the second world war and the â€Å"last moments of the cold war† (Plon, 1974, p391), possibly due to psychologists attempting to study the cause of such wars and how humans can behave in such conflicts against others. Darwin, Marx and Freud dominated the study of human behaviour in the early years of psychology, including some work which may link slightly to causations of conflict (Deutsch et al., 2006 p13). The main feature of their studies in relation to human behaviour and conflict was based on â€Å"competitive struggle† (Deutsch et al., 2006). Darwin believed all humans struggle in order to exist, and those who are the strongest – survive: â€Å"survival of the fittest† (Deutsch et al., 2006, p13). Social Darwinism denotes early theories compiled together and attempted to provide reason behind conflicts such as racism, war, sexism and class superiority (Deutsch et al., 2006, p14.). Again their studies were based on the concepts of human struggles, not solely on conflict as we know have it defined in this review. Marx work on struggle stressed that there are different divisions in society according to classes and this creates conflict. FreudShow MoreRelatedConflict Resolution and Applicability in Classrooms2375 Words   |  10 Pagesï » ¿Conflict Resolution and Applicability in Classrooms Introduction People fail to get along because they fear each other; they fear each other because they dont know each other; they dont know each other because they have not communicated with each other. Martin Luther King, Jr. Conflict is natural its how it is handled that creates a positive or negative outcome. 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