Apollo 13 Movie Physics

Have you ever wondered what it would be like to fly in space or work on the crew at NASA that helps the astronauts get home safely? These two jobs both use many of the laws of physics. In fact, almost everything they do involves physics. Apollo 13 is a movie that epitomizes what those jobs are like and how much physics is required. The three main laws of physics in the movie were Newton’s Law of Universal Gravitation, Newton’s First Law, and Newton’s Third Law. One main law in Apollo 13 was Newton’s Law of Universal Gravitation, defined as F=Gm1m2r2, where G=6. 7? 10-11. The first main scene in which this law was needed was when NASA decided that it would be best for the crew to take a free-return trajectory back to Earth. Newton’s Law of Universal Gravitation was needed to figure out the net force and its direction on the Apollo 13 spacecraft as it followed its path. NASA made sure that Apollo 13 would make it back to Earth and not be lost in space . Another scene in which Newton’s Law of Universal Gravitation was needed was when the Apollo 13 crew needed to execute a burn.This law helped them calculate the forces acting on them by other planetary objects, and therefore how much force their burn needed to apply. By simply adding together force vectors NASA could predict the exact location at any time of the Apollo 13 spacecraft. The third scene in which this law was required was when Jim Lovell stated that they â€Å"just put Sir Isaac Newton in the driver’s seat† after NASA had ordered them to power down both the LEM and the Command Module.What Jim Lovell was stating was that since now they couldn’t do anything to control the ship the only thing guiding them to Earth were Newton’s laws, especially Newton’s Law of Universal Gravitation. If Newton’s laws were to fail then the Apollo 13 crew would have had no chance of getting home. To sum it up, three scenes in Apollo 13 that use d or showed Newton’s Law of Universal Gravitation were when Jim Lovell said that they â€Å"just put Sir Isaac Newton in the driver’s seat†, NASA decided that a free-return trajectory was the best way to bring the Apollo 13 crew back home, and when Apollo 13 needed to execute a burn to adjust its course.Another prevalent physics law in Apollo 13 was Newton’s First Law, which states that a body will persist in its state of rest or of uniform motion unless it is acted upon by an external unbalanced force. In most scenes of Apollo 13 that show the spacecraft in space this law was visually demonstrated. The Apollo 13 spacecraft was always in uniform motion unless it was acted on by another external unbalanced force. The most significant force in space that would act on the spacecraft was that of gravity.Gravity from other large masses, such as the Earth, Moon, and Sun, acted as the external unbalanced force which changed the spacecraft’s speed and dire ction. If all the gravity in space were to suddenly disappear and the net force on the spacecraft were to be zero then the Apollo 13 ship would simply adhere to its uniform motion tangent to its original path. Another group of scenes in which Newton’s First was displayed was when the astronauts moved around in their spacecraft while in space.It is quite easy to tell from watching how the astronauts moved around in 0g that they were exhibiting Newton’s First Law. If an astronaut in the movie applied a force in one direction to move in the other that astronaut would then move at a constant velocity (in relation to the ship) as soon as that force was removed. On the contrary, if no force were applied, the astronaut would remain at rest in relation to the ship. Overall, Newton’s First Law was shown in Apollo 13 when the astronauts moved around in their spacecraft and when the spacecraft traveled through space.The third law that was very important in Apollo 13 was Ne wton’s Third Law which states to every action there is an equal and opposite reaction. The first main scene in which Newton’s Third Law was demonstrated was when the Apollo 13 crew had to execute a burn. By firing the main engine, they released gas particles into space, therefore applying an equal and opposite force on the ship. The burn was used to break free of the Earth’s gravity and to adjust the spacecraft’s trajectory slightly in order to make it home.Another main scene in which Newton’s Third Law was displayed was when the astronauts were in space, and they needed to move around in their spacecraft. In order to move, the astronauts had to apply a force in one direction in order to have a reaction force applied on them in the opposite direction. In 0g the astronauts could use their hands to push on other surfaces and move them in the opposite direction. The third main scene in which Newton’s Third Law was demonstrated was when the Apol lo 13 spacecraft ejected small amounts of gases to adjust the trajectory of the ship by fine amounts.By ejecting small amounts of gases the ship was exerting a force in one direction and receiving an equal force in an opposite direction, and therefore changing its path. By releasing just the right amount of gases the spacecraft could change its trajectory to make it home safely. Looking at the whole, Newton’s Third Law was exhibited by the spacecraft when it ejected gas particles into space, when it executed a burn, and when the astronauts moved around in their spacecraft. Many laws of physics were used in the movie Apollo 13.These laws helped to enforce the realistic feeling that this movie gave to its viewers. Not only were Newton’s Laws included but others were also used in smaller quantities, including Kepler’s laws and kinematic equations. Ultimately, the three commonly used laws in Apollo 13 were Newton’s First Law, Newton’s Third Law, and Ne wton’s Law of Universal Gravitation.

Police Department Organization Essay

There are three different types of police departments they individually have their own jurisdictions nonetheless their structure is very similar. For bigger departments the structure is going to be more in depth mainly because of all the moving parts in its system. For those smaller departments it will be smaller due to fewer personnel on shift and tasks at hand. In the Unites States we have three different types of police departments local, state, and federal. In this paper you will find a brief description of all three. In the city of El Centro California we have a smaller department due to the population here in El Centro. El Centro Police Department was established in 1908 it involves 58 sworn officers and 26 civilian employees. The structure is made up of the Police Chief, Commanders, Lieutenants, Sergeants, field officers, and civilian employees. This department comprises of three sub-divisions patrol, traffic, and Crisis Response Unit. Patrol is in charge of patrolling the city and making police presence known. Traffic division handles city traffic and makes sure that residents and visitors alike are respecting all speed limits and traffic signals. Crisis Response Unit is a specialized unit that has been established to handle critical field operations. It manages sensitive calls such as those where negotiations are needed; it is also capable of deploying specialized units where highly trained officers are need. Investigations Division accounts for two sergeants, seven detectives, one community service officer, and a secretary. Four of the seven detectives are assigned to handle multi-jurisdictional narcotics enforcement and one detective is allocated to juvenile crimes. Evidence and property is controlled by the community service officer. The person responsible for the Investigation Divisions smooth operations is the division secretary. The Chief, Executive Commander, and Staff assistant lead the Administration Division. Police Chief Jim McGinley is the current chief for El Centro police department. Chief McGinley has 32 years of law enforcement practice; previously he served as Commanding Officer for San Diego Police Department. Prior to retirement in 2005 Chief McGinley headed the Investigations Divisions 2. Chief McGinley was in charge of elder abuse, auto theft, financial crimes, robbery, gangs, and homicide. California Highway Patrol was formed August 14, 1929. It consists of eight different divisions throughout California. Their structure is very similar to a military unit. At the top of its structure is the Commissioner which has the following offices under it Office of Special Representative, Office of Inspector General, and Office of Employee Relations. Deputy Commissioner follows with the Office of legal affairs, Medical Relations, and Equal Employment Opportunity. After that the structure branches of into two different components one being administrative and the other being the officers on the beat. Assistant Commissioner Staff has several departments like Administrative Service Division, Information management, Enforcement & Planning, Office of the Academy, Internal Affairs, Office of Employee Assistance & safety, and the Office of Organization Development. Assistant Commissioner Field is the other branch that I mentioned. This office also has various divisions and offices like Protective Service Division, Office of Air Operations, State Security Division, and all of it different patrol divisions in the state. The state is broken down into eight different divisions I will name them form southern California to northern California; Border Division, Southern Division, Inland Division, Central Division, Costal Division, Valley Division, Golden gate Division, and Northern Division. California Highway Patrol has two main missions the primary one is to make sure that all traffic and transportation along freeways and state routes. CHP officer still maintain police authority out of state route and freeways. CHP’s secondary mission is to aid and assist to any emergencies that exceed local capabilities. A federal police agency is the Drug Enforcement Administration (DEA) and it was founded in July 1973 formed by President Richard Nixon. He established this agency to combat the war on drugs and not only nationwide but worldwide as well. According to the Drug Enforcement Administration web page the DEA has nearly 5,000 Special Agents and a budget of $2.02 billion. The Administrations structure is very complex and consists of many different divisions. At the top of its enormous structure it has its Administrator and Deputy Administrator followed by five different branches forming the top of this structure. It has Executive Equal Opportunity & Employee Assistant Staff (ADE), Executive Policy & Strategic Planning Staff (ADS), Office of Administrative Law Judges (LJ), Office of Chief Council, and Office of Congressional & public Affairs. Drug Enforcement Administration has many other divisions and departments that they account for a whole thirty one of them to be exact with the last one being field operations. DEA has a much larger structure mainly because it not only fights the war on drugs and terrorism in the United States but it also must do it worldwide. References www.chp.ca.gov www.cityofelcentro.org/police/ www.justice.gov/dea

Biocon

1. How has the Biocon’s positioning and strategy evolved over the years? What role does BIOMAb play in Biocon’s overall strategy? How big is the current and future market opportunity for BIOMAb †¢Biocon India was incorporated in November 1978 a sa joint venture between Biocon Biochemicals of Ireland and Dr. Mazumdar, an Indian entrepreneur. In 1979, Biocon first started manufacturing enzymes for food processing industries and exported to the United States and Europe. In 1994 Biocon stablished a Syngene International, a subsidiary custom research company to address the growing need for outsourced RD in the pharmaceutical sector But the maximum potential for Biocon was only $100 to $150 million even if they achieve a possible 10% to 15 % possible market share. The profit potential looked limited. So, they decided to enter into the Bio pharmaceutical market which had a much bigger potential market which was nearly 5 times ($10 billion) as compared to specialty enzyme market. at that time and likely to become $40 billion in near future and more than $80 billion by the year 2016. †¢They entered the pharmaceutical market in 1996-1997 as a manufacturer of generic drugs led Biocon to Statins. Biocon also started manufacturing Simvastatin and pravastatin gaining 15-20% share of the statin market in the United States and Europe. After a huge success with small molecules (statins) in a remarkable short duration of time, they decided to move into large molecules. †¢They entered into the Insulin market which was governed by three factors. First, Insulin represented a large global market domain. Second, one fifth of the global diabetic population (32 million in 2000) resides in India and was expected to grow to 70 million by 2030. Third, no biotech company had been able to make inroads in this market because their fermentation capabilities were limited to 1000 liters, whereas cost considerations dictated the capability to ferment 100,000 litres or more at a time. Initially they aimed at domestic market and priced the product 20-30% lesser than Novo, the competitor. They increased their sales force from 150 to 250 in just two years to market its insulin. †¢After the success of insulin, they entered into the proprietary drugs.

Should the U.S. take action to halt North Korea's nuclear weapons Research Paper

Should the U.S. take action to halt North Korea's nuclear weapons program - Research Paper Example 4. The radiation released from attacks against nuclear weapons facilities could kill thousands and be deadly for years to come. 5. The North Korea will become part of the community of nations. Cons: No the U.S should not take action to halt the South Koreas Nuclear Program because†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 1. It will leave the smaller countries such as North Korea defenseless since it is the world’s only superpower. 2. Failure in reconciliation between the two Koreas 3. The U.S.A will end up being seen as a weak nation: running away from a challenge. 4. It could worsen the existing humanitarian situation in South Korea. 5. This will trigger vulnerability causing the other nations to develop their own nuclear weapons program. It is thought that if the USA takes action to halt the nuclear weapons program then there will be a reduced probability that those weapons of destruction will be sold to terrorists. This is because the developers will choose to sell them to the highest bidder s who may as well be terrorists.i This will only be increasing the chances of attacks and generating more insecurity. Again since it is clear that the North has the full capability of developing their own destructives, the USA is posing as destruction and if the USA falls out of place then they will remain at will liberty to develop as much mechanism as possible. As the United States takes action to halt this program it has in consideration the security of their citizens. In coming into the process it is trying to enhance and offer its citizens with the protection with which it is charged. If it calls off its efforts then the country’s security will remain at stake and become more vulnerable. The efforts also help to control the amounts of radiations released in the process. The radiations are extremely harmful and can lead to deaths of many.ii Once the USA halts its efforts then the relationship between the two states will forever remain uncertain and the North Korea will lo se its chance of becoming a part of the community of nations. This can only be achieved through negotiations of six parties which have time and again been held. Through this joint party the USA can be able to lead the others in disabling the Process The United States of America is the only form of super power. Its main responsibility is to intervene whenever any state is exposed to threats. Back from the time of cold war to the current war against terrorism intervention has proved to be Americans Foreign Policy. The state has the responsibility of preserving the liberty of others, protecting virtual national interests and ensuring consistent international stability. The prevalence can be backed by the case of America intervening in the NATO-lead-peace keeping mission in Bosnia. If the United States fails to protect the inferior states then it will leave them in a distress and helplessness. Although for sometimes the South Korea perceived the USA to be an obstacle in attaining the re conciliation between the two Koreas, this has however changed with time. The USA is willing to give support to the South in any way, from the transition to democratic politics that is aimed at bringing remarkable changes.iii The States has great influence on the South and this has leaded them to drop the previous assumptions of it being a liability. The North Korea seems to have a very big failure, when it comes to the aspect of policies it uses. It becomes even more mixed up with the

Critically evaluate Rene Descartes's claim that the mind is not a part Essay

Critically evaluate Rene Descartes's claim that the mind is not a part of the physical world. Could modern science help settl - Essay Example This essay critically evaluates Descartes’s claim that the mind is not a part of the physical world. It also includes a brief analysis of the response of modern science to this classical assumption. A Cartesian Perspective of the Mind Descartes believes that the tendency to associate sensible features with bodies is a mistake developed during childhood. During these early years individuals acquire the belief that the physical world is strongly connected to their sensations, or that it has the types of attributes it seems to possess in sense perception, both sensible and automatic. But indeed, he argues, bodies possess only automatic attributes, such as motion, size, and shape, and people’s perception of sensible attributes are brought about by formation of these attributes (Wilson, 2003). Challenging the simple perception of the physical world is a major objective of the Meditations. The movement against faith in the senses, and specifically against the belief that bodi es are the same as sensations, is an important instrument in realising this objective, because Descartes believes the simple understanding of the physical world is mostly rooted in the notion that bodies are the same as people’s sensations (Morton, 2010). Descartes started his pursuit of truth by using his newly developed method of inquiry. His method used intense scepticism—all ideas that are doubtful were disregarded, including ancient wisdom taught by scholasticism. More critically, Descartes also doubted ideas coming from the senses because â€Å"from time to time I have found that the senses deceive, and it is prudent never to trust completely those who have deceived us even once† (Wilson, 2003, p. 37). Evidently this argument encouraged questioning much of the established knowledge, and eliminating them as potential groundwork of thought. All ideas of the physical world might be untrue, since knowledge of them arises from the untrustworthy senses. Moreover , the presence of the physical body was questioned based on the same justification (Engel & Soldan, 2007, p. 334): â€Å"I shall consider myself as not having hands or eyes, or flesh, or blood or senses, but as falsely believing that I have all these things†. Descartes afterward thought that in order to doubt, he should exist as a ‘thinking’ being: â€Å"I must finally conclude that this proposition, I am, I exist, is necessarily true whenever it is put forward by me or conceived in my mind† (Christofidou, 2013, p. 41). And then he defines a ‘thinking’ being as â€Å"a thing that doubts, understands, affirms, denies, is willing, is unwilling, and also imagines and has sensory perceptions† (Morton, 2010, p. 81). This series of arguments led him to his concluding point: the mind is not part of the physical w

Self Compacting Concrete Essay Example | Topics and Well Written Essays - 250 words

Self Compacting Concrete - Essay Example 26). SCC can be used in most applications where traditionally vibrated concrete is used. It is suitable for high performance, densely reinforced structures as well as for less demanding unreinforced applications for instance the backfill (Petersson, et al., 2000, pg. 3). SCC can be fibre reinforced and is equally applicable for in situ construction as well in precasting. It has the capability to fill formwork and encapsulate and condense reinforcing bars only through the action of gravity and with maintained homogeneity. This ability is achieved by designing the concrete in such a way that it gains suitable inherent rheological properties. These properties are achieved through by not subjecting the concrete to any exterior energy input from vibrators, tampering or comparable actions. The predominant reason for the development of SCC has been the concern for reduced durability that is cause by inadequate homogeneity of the cast concretes. However, SCC has also been used to improve the quality of concrete work and to allow for the ability for automation of the construction work as well as improve the working conditions on construction sites (Cleland, et al., 1996, pg. 483). Other benefits of SCC over other forms of concrete include, it can be placed at a speedier and swifter rate without the need for mechanical vibration and with reduced screeding and this results to savings in placement costs, there is better-quality and more uniform and consistent architectural surface finish with minimal to no remedial surface work, there is enhanced consolidation around reinforcement and bond with reinforcement, it improved pumpability and is labor savings, it shortens constructions periods which translates to lower construction costs and minimised the traffic of ready mixed t rucks and pumps for the period of placement and finally increased work environment safety by doing away with the

Organisational Transformation in Practice Assignment

Organisational Transformation in Practice - Assignment Example The task requirement was to attempt the project in the light of the lectures and seminars attended on the subject matter within a period of 2 months. The project was to be done in groups that were made by random selection of people; meaning they were made by the instructor and not according to our will in order to ensure an even distribution so that all individuals of the same calibre do not form a single group. In my case, a group of six members were formed; two of which were friends already, while the rest of us barely knew each other. Moreover, the team leader assigned was a female. The main challenge was to cope and keep pace with the team members and complete the assigned task within time. Performing projects within the given time constraint had never been an issue for me, but what really served as a challenge for me while working on this particular project was the aspect of working with a team that were I was not entirely familiar with. And this aspect of learning how to deal w ith people I don’t know, which is especially crucial when it comes to team tasks, is precisely the most valuable thing that I take away from this experience. Self-Awareness Despite being a fairly social person, it has always been hard for me to adjust to new people. I always need some time to get comfortable while interacting with people I don’t know. So, during the first few weeks I felt very uncomfortable working with new team. Although, I have a friendly personality, but still I needed some time and space to get along with the new members. The group kicked off the work with small tasks such as role plays and brainstorming exercises; which encouraged us to speak up and to share our view points. These exercise helped us understand and get to know each other. But still the major task was yet to be done. Later, in third week we were directed to start thinking about a Multinational Company that we, as a group would choose for the project. This proved to be quite a diffic ult stage for all the team members as this is where conflicts started to arise because everyone had his separate opinions. I noticed that some of my team members were reluctant to share their viewpoint, while some members kept on bombarding their ideas. The most enthusiastic of the lot in giving their inputs were the two members that were friends already and who were of the view that the group should consider Red Cross for the study at hand. At that stage, I personally felt that those two friends were quite strong in our group due to their affiliation as the rest of us had still not opened up to each other and were therefore, a little hesitant at these initial stages of work. So, my leader asked every member to give their best shot regarding the company, which they thought was the best. Although, I did not like the company that was chosen for our study, but still I had to accept it as I was working in a team, the aspect of which can be related to the term referred to as â€Å"Chang e Management Iceberg† by Wilfred Kruger (Kruger, n.d.). Moreover, the most difficult tasks for me were: group working, and practical implication of applying knowledge and theories to the assigned task. I was able to deal with these two aspects only through talking myself into believing that it’s never too late to learn new skills be it human or technical, and by taking every aspect of that whole project

Analysis of We Googled You Assignment Example | Topics and Well Written Essays - 1250 words - 2

Analysis of We Googled You - Assignment Example In the current case, the company has a prospective employee who has been brought up in China and therefore is aware of the business environment in the country. The individual has been proposed by one of the company’s trusted managers who have the responsibility of bringing on board employees who are qualified for the specific kind of job. The manager, Fred, finds Mimi, a young lady who is a daughter to one of his long-time friends, who is qualified for the job. She has enough education for the responsibilities that he is expected to handle, good recommendations from her employers and at present, and she is enthusiastic about helping the company achieve its objectives. When; however, the human resource manager in the company performs a search of the individual on google, an incident reported eight years before is revealed. She was once a leader of the protest group that was strongly against World Trade. It is an incident that the company would rather not be associated with. The issue arises because a person of her qualifications and experience is not easy to find, yet the report of eight years ago may be following her and the company. It is for the company to make a decision on whether to hire Mimi with her slightly tainted past and a probably bright present and future, which the company can also benefit from or to let her go. Hiring her would mean that the company hopes that her past does not affect her functions and that she will deliver quality services. Letting her go will mean that the company does not care about their current needs and her qualifications but looks out to hire spotless individuals. There are various alternatives that the company can take. First, the company may decide to proceed with the hiring and assume that they know nothing of the incident on google.  Ã‚  

Managment Audit of Wal-Mart Essay Example | Topics and Well Written Essays - 1500 words

Managment Audit of Wal-Mart - Essay Example A management audit would help to determine whether Wal-Mart is a destructive force or is good for the local economy. While it is generally believed that a population of 100,000 was necessary for a discount store to be viable Wal-Mart argued that if prices were right, the stores could attract people from a wider area (Grant, 2002). Wal-Mart chose isolated rural towns and national brands at low prices. Each store of Wal-Mart has the discretion to place orders with the vendors directly and receive supplies also directly. This strategy of decentralization leads to efficiency in terms of time and administrative costs apart from making the employees feel ‘associates’ and not wage earners. Wal-Mart has the image of a friendly, all-American company employing happy workers and smiling greeters who are eager to help and grateful to work at Wal-Mart (Bianchi & Swinney, 2004). Wal-Mart started off as an entrepreneurial venture but Wal-Mart’s Sam Walton, while constantly upgrading and expanding did not ignore the need to identify and groom a successor. A corporate culture encourages the employees and managers to consider the customer the focus of business. The customer is the king was the policy at Wal-Mart. Wal-Mart has helped to hold down inflation in US. Wal-Mart is responsible for about 12% of the economy’s productivity gains in the second half of the 1990s (Fishman, 2003). Wal-Mart believes in constantly learning and improving, conscious of the fact that competitors would stay. They are always alert at finding and implementing new retail concepts. They concentrate on each store depending on its location. The merchandise is available according to the need of that community. The associate in charge of that store is given incentives to plan out promotional campaigns for a given period for the product suitable to local adaptation. Human resource management is a stronghold of Wal-Mart as right from the inception they did not believe in