Thermodynamics Assignment Example | Topics and Well Written Essays - 500 words

Thermodynamics - Assignment Example The idea of making a bag that would keep the pizza hot for as long as it remains in it is built on the possibility of creating an isolated system. Once an isolated system is created, the first law guarantees that the energy (heat is a form of energy) will remain constant inside the system, which means whatever is in the bag will have a constant temperature, since temperature is a measure of heat. Another way to phrase the first law of thermodynamics is: "energy can neither be created nor destroyed," given that the isolated system is one that does not allow energy nor matter to cross its boundary it is easy to see how an isolated system can keep its temperature constant. Another way to put it is that energy's ability to do work always decreases. In terms of heat, work is done by heat's transition, and so for the energy's ability to do work to decrease (i.e. for entropy to increase) the systems would reach their maximum entropy when they have the same temperature, which would mean that they will no longer be able to exchange heat between them and therefore would not be able to do work. As isolated systems, the pizza bag's entropy increases, however the pizza bag and the surroundings together have an entropy that does not increase, this does not violate the second law of thermodynamics since it states that only entropy of an isolated system can increas

Midterm paper Essay Example | Topics and Well Written Essays - 500 words

Midterm paper - Essay Example Around me, I have an adoring music family; my father is a big fan of opera while my mother enjoys all classical and country music. Interestingly, both my grandparents listen to the old Taiwanese song every day and my sister who likes heavy metal and rock songs. In addition, I also play different categories of instruments since I started kindergarten. From the reading, Burnsed and Gordon took Piaget’s ideas of perceptual development and concept formation and applied them to music. Burnsed discusses Gordon’s application of Piaget’s four stages of development in relation to musical skills. First, sensorimotor stage, a child who is under two years old may identify the loudness, timbre, and pitch of the sound (Barrett, McCoy & Veblen 23). Secondly, pre-operational stage whereby a child who is between three to seven years old may include many movement experiences such as tempo. Thirdly, â€Å"concrete operations stage†, a child who ranges from seven to twelve can initiate intricate mental operations (Burnsed 27). Finally, from prescribed operations stage, a child who is above 12 can comprehend the cause and consequences. From these statements, it has allowed me to have a better acquaintance of how perceptual progress relates according to my music experiences (Burnsed 27). According to my parents and every child I have interacted with, it is evident that we are all very sensitive to any sounds since we were infants, especially the songs with high pitch and shrill timbre. My mother indicated that during our tender years she used toy with the small sands to make whispery sound to get our attenuation when she feeds us. When she talked, she has to talk in a lofty pitch accent like Mickey Mouse with a funny facial expression to make us chuckle, the same goes for my father. If they did not, we would just stare at our parents until they hoist their voice and make goofy faces. Moreover, my mother said that I have always needed the animal musical mobile when I

Ethic and Emis Perspectives Assignment Example | Topics and Well Written Essays - 500 words

Ethic and Emis Perspectives - Assignment Example Included in these tools, the emic and etic criteria for evaluation, which anthropologists use, give a better understanding of children’s behavior. Etic concept is about â€Å"cross-cultural and more universal dimensions of human behaviors† (p 161). It demands a descriptive system valid for all cultures, with objects of comparisons operationalized as variables under investigation which include perception and thinking, aggression as outcome variables or socialization practices and school attendance as generating mechanisms (Helfrich, 132). Emic perspective considers â€Å"within-group characteristics† (Weil and Kincheloe, 161) where culture is an integral part of human behavior and not just an external factor. â€Å"The emic approach shows us that it is not only the subjects of the research who are culture-dependent, but also the whole system of psychological thought and its underlying assumptions† (Helfrich, 132-133). In the article â€Å"Who is Bobby? Ideology and method in the discovery of a Down syndrome person’s competence† (1992), DA Goode said that emic analysis uses the â€Å"insider’s point of view† while etic analysis uses the â€Å"outsider’s perspective†. In the case of emic analysis, the focus is on what the subject tells about himself and his experiences, or from within the situation under study (Goode, 198) while in etic analysis, the focus is on what the professionals have observed. According to him, â€Å"etic frameworks are external to the situation under analysis† (Goode, 198). In the book â€Å"Ability Profiling and School Failure†, through an observer’s eyes, at first glance, one can say that what Laura thinks of Jay is based on an emic perspective. Their everyday encounter in school should have been enough for Laura to have an insider’s view of Jay’s behaviors and idiosyncrasies and thus should have a better understanding of them. But as you read, you will see that in Laura’s opinion, Jay is "emotionally

Effective written communication Essay Example | Topics and Well Written Essays - 500 words

Effective written communication - Essay Example Cultural beliefs and perceptions determine the way in which an audience interprets information. Therefore, understanding the audience cultural background makes it possible for a public speaker to craft the message within the audience’s cultural context. Understanding oneself marks the beginning of an effective rapport between a communicator and audience. For instance, a public speaker can only joke to the extent in which he or she is funny. Listening to the audience enables the speaker to know when to pause, repeat, or simply â€Å"allow a light moment to be expressed† (Ellis 124). Self-awareness ensures that the speaker remains in control of the audience at all times. For instance, an audience may laugh at a pronunciation error. However, the public speaker may take quick control and pass it on as a bluff. On the same note, self-awareness enables a public speaker to remain honest to the audience especially when questions are asked. By assessing personal knowledge on the subject matter, a public speaker may decide to or not to answer questions after a presentation. Providing false information may actually raise more difficult questions than anticipated. Public speaking may involve speaking to an audience with unique characteristics. For instance, a public speaker addressing an investment group needs to understand the investment context of the audience. Validating the audience’s beliefs or system of thinking strengthens the bond with the audience. For instance, the speaker might keep echoing ‘return on investment’ because that is what investors believe in. This way the audience will feel the speaker validated their heartfelt sentiments. Another important reason for audience validation is that it puts the speaker as knowledgeable in the subject matter irrespective of whether the speaker has a strong background on the subject or not. Prowess in public speaking and leadership is a continuous process of constant growth and development. One

The experience economy perspective proposes to change the way products Essay

The experience economy perspective proposes to change the way products are, designed, promoted, and consumed. What are the marketing consequences of adopting this approach - Essay Example ys a high pressure that the companies will undergo due to the needed change to improve and stay in sync with the changes in the markets (Brownlie, et.al, 1999). There are also a number of companies that fail to realize the new realities which leads to unwanted and dramatic consequences. The experience economy, in a number of ways, proposes the need for a change in the products in terms of design, promotion and even consumption. This paper aims at understanding the various changes that companies need to undertake in terms of the marketing of these products. The paper will deal with in brief the various changes that are expected from the companies to change in the product in terms of design, promotion and also consumption. Following which the marketing consequences will be discussed in detail. With the growing change of economies and the various technological developments, there has also been a clear change which has been required from the companies as well. The needs of humans change over time and taking the example of Maslow’s Hierarchy of needs, it is clear that there is a strong connection between the economic growth and the personal choice in the current economy (Buchanan & Huczynski, 2004). In the earlier days, the economy would be able to meet us to the people’s needs and requirements. The basic needs and Maslow’s Hierarchy’s first step of basic needs like food were easily provided and the growth of the industries led to provide the necessary goods to satisfy the other needs like the safety until the social acceptance and also status. However in the recent ages, with the use of the World Wide Web and the internet, there have been a few changes in terms of the desire for knowledge, which were earlier satisfied by the information economy w hich provided for answers to the cognitive needs and also the desire for knowledge. There have been changes in almost every sector of the industry and the World Wide Web is now providing the companies with a strong

Culture Essay Example | Topics and Well Written Essays - 250 words - 6

Culture - Essay Example The pregnant women are also prohibited from touching anything with glue to avoid the child being born with birthmarks (Community College, 2005). About foods, the Chinese also believe that if the expectant woman eats too much the baby will be too large making the labor harder. The mothers are advised to take coconut milk, so that the baby will have a good quality skin. On sex determination, the Chinese believe that if the belly is pointed the baby will be a boy and if rounded, it will be a girl. When the baby is finally born, it is the role of the father to give it the first bath. The placenta must be kept near the birth place so that in death, it is used as a sign of atonement and humility of the life on earth. The placenta can as well be used to make medicines cure various diseases (Simpson et al., 2008). Post-partum care involves taking of hot foods, including ginger, pig’s feet, and high protein meats, to rebuild the lost blood supply. Cold foods are believed to cause headache or arthritis in old age. To prevent complications, the mothers should avoid showering, washing hair, or exposing themselves to cold conditions. Before handling the baby, they are required to purify their hands using ginger. To increase milk production, the mothers are required to take papaya soup and fish. The first milk, colostrum, is considered dirty and should be discarded (Community College, 2005). In conclusion, Chinese people have a strong belief in their culture as long as the pregnancy is concerned. They observe the practices right from the pre-natal stage to post-partum care and the way the child is raised. Women are more inclined to the

The Central Limit Theorem Essay Example for Free

The Central Limit Theorem Essay The Central Limit Theorem for a Mean state that for a random sample of size n from a population with mean  µ and standard deviation ? , as the sample size increases the distribution of the sample mean approaches a normal distribution with mean  µ and standard deviation . On the other hand, if the population is normal, the distribution of the sample mean is normal regardless of sample size (Doane Seward, 2007). Now, suppose a random sample of size n is taken from a population with mean 100 and standard deviation 10. The sampling error or standard error of mean for samples of n = 1, n = 4, n = 9, n = 16, n = 25, n =100 will be For n = 1, For n = 1, For n = 1, For n = 1, For n = 1, For n = 1, From above it can be seen that as the sample size increases, the sampling error reduces. Further, the histogram (if plotted) of samples means approaches a normal distribution. Therefore, while on cannot get rid of sampling error the results from one’s statistical work can be still useful as the sampling error will be less for larger sample size. References: Doane D. P. Seward L. E. (2007). Applied Statistics in Business and Economics. McGraw-Hill/Irwin: New York DQ2-WK3 What is the difference between a sample and a population? When can the same information (e. g. the age of each of the ten students in our class) be considered both sample data and population data? A sample involves looking only at some items from the population. For example, if a survey is to be taken from student of XYZ College for their choices, than the population will be consist of taking survey of all the students in XYZ College and a sample will be taking survey for only some of the students selected based on sampling method. For small population, there is little (or no) reason to sample. Similarly, if the data are on disk, than 100% of the cases can be examined easily (Doane Seward, 2007). Therefore, the same information can be considered both sample data and population data if the population is small or can be taken easily with no additional cost for analysis purpose. For example, in a class of 30 students, if the average age is to be determined, than the population is entire class that is all 30 students. In this case, the population is small; therefore, there is no need to sample and therefore, the age of all 30 students can be considered both sample data and population data. References: Doane D. P. Seward L. E. (2007). Applied Statistics in Business and Economics. McGraw-Hill/Irwin: New York DQ3-WK3 When would you use ANOVA at your place of employment, in your education, or in politics? Please share the WORDS that would lead you to the null hypothesis for a specific and simple example and, then, show the null and alternative hypothesis in symbols. Analysis of variance (commonly referred to as ANOVA) is used for comparison of more than two means simultaneously and to trace sources of variation to potential explanatory factors (Doane Seward, 2007). For example, if sample data for 15 days of manufacturing defect rates for automotive parts manufactured at four plant locations is collected (or available). Than, ANOVA can be used to answer questions such as are the observed differences in the plants’ sample mean defect rates merely due to random variation? Alternatively, are the observed differences between the plants’ defect rates too great to be attributed to chance? This can be written as null and alternate hypothesis as , i. e. at all four plants mean defect rate are the same. , i. e. at least one mean differs from the other. Now, if the null hypothesis is not rejected than it can be concluded that the observations within each treatment or group actually have a common mean ? (ibid). References: Doane D. P. Seward L. E. (2007). Applied Statistics in Business and Economics. McGraw-Hill/Irwin: New York