Checking Newton Essay Example for Free

Checking Newton Essay In this experiment I will make measurements on a two pulley system and use them to check Newtons 2nd law:The rate of momentum of a body  Is directly proportional to the external,  Resultant force acting upon it. The change in momentum takes place in the  Direction of that force. The apparatus is set up as shown in the diagram below:  The masses m1 and m2 are initially set at 400 grams each. The ruler is set vertically. I measured and recorded the distance (S). There must be the same friction at the pulleys; in order to comply with this took added 10 grams masses to m1 until the two masses jus begin to move. I recorded the extra masses m0 added, and the total mass M of m1 and m2. I then held m1 by hand, added one 10g mass, and released it. My partner at that exact moment started the stopwatch. When the m1 hit the soft material the stopwatch was stopped. I recorded the time taken in the table below and repeated this a further one more time so I could finally take an average reading. Extra mass added to m1 Time 1 s Time 2 s Mean Time Timei 1/(m Kgs-1 0. 020 3. 0 4. 18 3. 59 12. 8 50 0. 040 1. 60 2. 14 1. 87 3. 49 25 0. 060 1. 62 1. 45 1. 53 2. 34 16. 6 0. 080 1. 19 1. 30 1. 24 1. 53 12. 5 0. 100 1. 19 1. 0 1. 09 1. 18 10 On then ext page is the graph that I plotted with t on t on the y- axis against 1/(m on the x- axis. Theory: The string is assumed inextensible so then the tension is the same at all points. For the downward motion of the mass m2 I applied F=ma. M1g T = m1a 1 For the upward motion of m2 T m1g = m1a 2 Adding 1 and 2 cancels out T M2g m1g = m2a+m1a (m2 m1)g = (m2+m1) a There for a = m2-m1/m2+m1 g 3 Now s=ut + at U=0, and There for s=1/2at A=2s/ti 4 Substituting 4 in 3 for a 2s/t = (m/M g ( 2Ms= t. g. (m This can be written asti = 2Ms/g . 1/(mm, s and g are constants. So a graph of ti against 1/(m should result in a straight line through the origin.

Robert Frost Home Burial - A Reflection of Reality Essay -- Home Buri

Home Burial as a Reflection of Reality Robert Frost's "Home Burial" is a masterfully written work, conceived from his and his wife's anguish at the loss of their first-born son as well as from the estrangement between his sister-in-law and her husband due to the death of their child. In Donald J. Greiner's commentary on Frost's works, "The Indespensible Robert Frost," it is revealed that "Mrs. Frost could not ease her grief following Elliot's death, and Frost later reported that she knew then that the world was evil. Amy in "Home Burial" makes the same observati Often it seems that writers have their own personal inspiration that fuels a great work to cause its readers to realize the complexity of the human nature. Robert Frost's "Home Burial" is a masterfully written example of such works, conceived from his and his wife's anguish at the loss of their first-born son as well as from the estrangement between his sister-in-law and her husband due to the death of their child. In Donald J. Greiner's commentary on Frost's work s, "The Indespensible Robert Frost," it is revealed that "Mrs. Frost could not ease her grief following Elliot's death, and Frost later reported that she knew then that the world was evil. Amy in "Home Burial" makes the same observation". "Home Burial" illustrates the cause of the failing marriage as a breakdown of communication, both verbally and physically, between two people who adopt totally different views in the midst of crisis. Amy does not believe that her husband is in mourning over the death of their child. Her view can be defended by the fact that she is feeling unimaginable pain that she justly feels is unique to the nurturing nature of a mother. The child tha... ...eir ability to talk normally to eachother, but also because the physical side of their marriage is absent. Touch is a form of communication that the total absence of alone can destroy a loving union. Frost leaves the reader with a realistically portrayed image of their marital turmoil reaching a height as Amy opens the door, ready to walk out on the marriage. The melancholy conclusion to Frost's work ends up being the result of failed communication. "Home Burial" is unfortunately a reflection of the reality that many marriages fail in the event of a child's death. A lack of communication, both verbally and physically, tears apart two people even without a tragedy as profound as the one that Frost and his wife experienced. Frost's work is an expression of the more serious and traumatic side of nature and reveals the consequences of inevitable human flaws.

Who’s Responsible for Obesity?

Obesity is everybody’s responsibility – the parents and the school authorities, the fast food companies, and the government. Since the issue is now a societal problem after reaching epidemic proportions, it deserves no less than the attention of everybody to deal with obesity. (Raley & Burnor, n.d.)Hence, it is only proper to point out the individual accountabilities of these sectors of society and compel them to do their share in combating the problem.While the responsibility of providing a healthy diet to children primarily belongs to the parents, school authorities are also duty-bound to inculcate into the minds of schoolchildren the correct values of nutrition.Such are the duties assigned them by society: the former being the persons who have the obligation, under the laws of God and country, of nourishing their offsprings, the latter being the individuals who are in the best position to influence the young minds of children. If only the parents and the teachers hav e been doing their duties faithfully, fast food outlets would not have succeeded in causing obesity.Even as fast foods companies have the right to advertise their products, such right does not free them of their moral obligation to warn the public about the adverse effects of their foods. The U.S. constitution itself would only allow the exercise of one’s rights as long as doing so does not deprive others of their own rights. In this context, fast foods companies are within their right to engage in gainful enterprise but they should not do so at the expense of the public’s health.Even if the court exempted them from any legal liability after observing that everybody knows that fast foods contain â€Å"high levels of cholesterol, fat, salt and sugar, and that such attributes are bad for one,† the court’s legal opinion is not a moral judgment. The harmful effects of cigarettes are also well-known, but the law compels cigarette manufacturers to continuously warn the public. Why not oblige fast foods companies to do the same? (Raley & Burnor, n.d.)ReferenceRaley, Y. & Burnor, R. (n.d.). Case 1: Who’s Responsible for Obesity? (Article provided with  

The Biggest Threat to Microsoft Free Essay Example, 3000 words

The report also included various facts about Microsoft and how the company enjoys so much power in the markets. It also mentioned that with the amount of power the company held in terms of price, the company could charge a price for the Windows which could be much higher than that of its competitors. Also, it could do so without losing out on customers to the competitors, thus proving that the company did hold a monopoly in the relevant market. There are however three main facts that clearly show that the company is a monopoly, a) the share of Microsoft for the Intel-Compatible PC operating systems is very high and stable, b) the market in which Microsoft mainly works and functions has high barriers of entry, c) due to the high barriers of entry the customer of the company find it difficult to find an economical and commercially viable alternative (Wilcox, 1999). These in a way prove that the company has a monopoly in the markets and also the following information allows proving tha t the company does so have a monopoly. We will write a custom essay sample on The Biggest Threat to Microsoft or any topic specifically for you Only $17.96 $11.86/page