Physics: time period of a pendulum.
physics: time period of a pendulum PLAN: String Ruler B A Weight Stand Desk Timer The time period for a pendulum is the time taken for the pendulum to swing from one point to another (i.e. from A to B and back again) I need to record this time period, but it is too short, so I will time 10 periods and then divide the final time by 10 to give me the time of one pendulum time period. When doing this experiment I will need to take in account the three variables; Displacement, the mass of the pendulum, and the length of the string that the pendulum is attached to. I have decided to vary the variables in the following way: Displacement (0) 80 20 Length Of String (cm) 80 20 Mass Of Pendulum (g) 200 500 I have chosen to use this figures because they are wide apart and I will find out how many figures I will need to use in my final experiment. In my preliminary experiments I am only going to vary one variable at a time, when I use mass as a constant I will set it as 100g, this is because it is not too small a value and it is not too big. When I set length of string as a constant I will 60 cm, this because it is an average value. When I set displacement as a constant I will set it as 50 degrees, this is because I tested 90 degrees and it was too big a displacement so I lowered the value to 50 degrees. I will time 10 time periods, as I said before, and divide the
Refraction of Light Lab Report
David Urlanda Physics Lab Report Refraction of Light - Air into Glass Purpose: When light travels through different mediums, it is being refracted. The purpose of this lab is to test Snell's law of refraction. Hypothesis: The angles of refraction that I predicted from the angle of incidences by using Snell's Law are below on the predicted angle Column. To obtain these values I used the index of refraction of crown glass because it is more likely close to the glass (plexiglass) that we are using. Angle of Incidence 0° 0° 20° 30° 40° 50° 60° Predicted angle of refraction 0 6.56° 3.0° 9.2° 25.02° 30.27° 34.74° Variables and Controls: Independent Variable: The angle of the light coming from the ray box or the angle of incidence Dependent Variable: The angle of refraction on the plexiglass. Controls: The mediums where light travels (air and plexiglass). Materials: - ray box - plexiglass - white paper, protractor and pencil Procedure: . I folded the blank paper into four equal parts. Then drew two intersecting lines perpendicular to each other. 2. Using the protractor I drew the angles of incidences or rays measuring 10°, 20°, 30°, 40°, 50° and 60°. 3. Then I drew a semi-circle on the top of the intersection representing the flexi glass and placed the flexi glass over the semi-circle. 4. Plugged in the ray box to a power source
Theory of Knowledge - Emotions
Shereen Chee . To what degree is emotion biological or "hard-wired", and hence universal to all human beings? To what extent is it shaped by culture and hence displayed differently in different societies? As humans, we tend to have emotions. This is because it is inborn and we do not require teachings on how to use this instinctive state of mind. This is clearly proven by babies, who are able to laugh and cry without being taught how to. In other words, we are able to respond to a circumstance before we even learn how to pronounce a simple syllable. This further suggests that emotion is universal for nationality, race, and religion do not influence the fact that humans can feel different emotions given different situations. However, the situation that can evoke a particular emotion may vary across cultures. It is through culture in which the cause of the expression is shaped. For example, my friends and I watched a clip of a skateboarder falling down from a steep flight of stairs in "World's Most Funniest Videos" and I noticed that white friends laughed at it while the asians put on a disgusted face. This shows the influence that culture has on the emotions that we express towards a particular situation. It could be argued that this is a hasty generalized statement. However, the title of the show itself suggests that it was supposed to funny and not surprisingly, this show
Compare how two television programmes you have studied offer comic representation of gender. Using Absolutely Fabulous and an episode of keeping up Appearances.
Andy Gunner. Media. Mr Piper. Compare how two television programmes you have studied offer comic representation of gender. * Introduction In this essay I intend to use two sitcoms to answer the question. Gender representation is a major part of many sitcoms and I will be looking into why this is, and how they are represented comically. I will be using an episode of Absolutely Fabulous and an episode of Keeping Up Appearances to provide me with examples to support my ideas and opinions. * Absolutely Fabulous- Eddie- comical features: Over dressed, flamboyant & eccentric appearance No sense of moral or political correctness (buying merchandise from African villages) Physical behaviour- poor co-ordination of arms and hands- looks comical- lots of movement. (Example- when arrives late in & faces questioning from Saffy) Voice-sounds younger than she is & talks like she is younger- comical because trying to hide from her real age Language- talks like a teenager, talks to daughter like she is her mum (role reversal) Also degrading to daughter, loud and immature behaviour. Not stereotypical mum- quite the opposite, stereotypical teenager. (mood swings & behaviour, dress etc) Main interest is men- questions Saffy about when she will finally get a boyfriend. Generally most of her features are exaggerated to increase comical value. Saffy- Comical features: Very boring/
Resistance of a wire
Resistance of a wire Background Information What is resistance? Resistance is anything that causes an opposition to the flow of electricity in a circuit. Everything in the circuit causes a resistance! The higher the resistance in a wire, the more collisions there are inside the wire and the harder it is to push the electrons around the circuit. Ohm's Law R = V/I A steady increase in voltage, in a circuit with constant resistance, produces a constant linear rise in current. A steady increase in resistance, in a circuit with constant voltage, produces a progressively weaker current. Current is directly proportional to voltage and inversely proportional to resistance. This means that the higher the voltage, the higher the current, assuming resistance is kept constant. Resistance is the opposition to current flow. So if voltage is kept constant, the higher the resistance is, the lower the current will be. e.g. 6? = 24V/4A 8? = 24V/3A Here resistance has been increased slightly, voltage has remained constant and current has dropped slightly. There are many things that affect the resistance of a wire: Temperature of wire - If the wire is heated up the atoms in the wire will start to vibrate because of their increase in energy. This causes more collisions between the electrons and the atoms as the atoms are moving into the path of the electrons. This
Investigating the Gradients of Graphs of the Form ‘y=ax’
Investigating the Gradients of Graphs of the Form 'y=ax' Aim To find a formula for the gradient of a 'y=ax' graph. To do this I will take a number of values of 'a' find the gradients and form a conclusion. Having done this I will test my theory with a different value of 'a'. The values of 'a' that I will test are: 1,2,3 and 5 Then a fraction and a negative number: 1/5 and -4. Calculations To find the gradient, I take a two points on the line and form a right-angled triangle off them, as shown on graph. Then I divide the height of the vertical side by the length of the horizontal, measuring from the axis, and take down the gradient. e.g. 7 7/3 = 3.5 gradient = 5 3 Graph Table a=1 x 0 1 2 3 4 5 6 7 8 9 10 y 0 1 2 3 4 5 6 7 8 9 10 a=2 x 0 1 2 3 4 5 6 7 8 9 10 y 0 2 4 6 8 10 12 14 16 18 20 a=3 x 0 1 2 3 4 5 6 7 8 9 10 y 0 3 6 9 12 15 18 21 24 27 30 a=5 x 0 1 2 3 4 5 6 7 8 9 10 y 0 5 10 15 20 25 30 35 40 45 50 a=1/5 x 0
Chemistry Lab Chromatography
Title- Separation of dyes in screened methyl orange by paper chromatography. Introduction- chromatography is a technique used to separate the components of a mixture by making use of differences in solubility of the components. It can be used to separate such complex mixtures as the amino acids in blood or the various pigments in the flowers of a plant. In this experiment, the components of screened methyl orange which is a mixture of methyl orange (C14H14N3NaO3S) and xylene cyanol (C25H27N2NaO6S2) are separated through the use of water as a solvent. Aim-To determine which dye in screened methyl orange is more soluble in water. Apparatus-screened methyl orange, chromatography paper (10cm X 2.5cm), 250cm3 beaker, fine dropper, retort stand. Method- . A horizontal line was drawn on the chromatography paper 1.5cm above the bottom line 2. Some of the screened methyl orange was taken in the fine dropper and a spot of .5cm in diameter was made on the horizontal line. 3. 20cm3 of distilled water was poured into the 250cm3 beaker 4. The top of the chromatography paper was clamped to the retort stand and the lowered into the beaker ensuring that the spot of dye didn't touch the water. 5. The water was allowed time to rise then the chromatography paper was removed from the retort stand and the distance between the origin and the component was recorded. Observations-
Overview of Vietnam First-Class Bank (VFC Bank).
TABLE OF CONTENTS .0 INTRODUCTION 2 2.0 OVERVIEW OF VIETNAM FIRST-CLASS BANK (VFC BANK) 3 3.0 DETAILS OF COMPETITORS 5 3.1 ANZ BANK VIETNAM 5 3.2 ASIA COMMERCIAL BANK (ACB) 7 4.0 B2B E-COMMERCE STRATEGY FOR VFCB 9 4.1 SWOT ANALYSIS 9 4.2 RECOMMEDATION OF E-COMMERCE STRATEGY 13 4.3 CRITICAL SUCCESS FACTORS OF THE EC STRATEGY 17 4.4 RETURN ON INVESTMENT & DETAILS 18 4.5 WHY XML COMMUNICATION STRATEGY 19 5.0 TECHNIQUES OF DATA INTERCHANGE 27 5.1 EDI 27 5.2 XML 29 6.0 IMPLEMENTATION 30 6.1 THE PROPOSED E-COMMERCE SYSTEM 30 6.2 RISK MANAGEMENT FOR VFCB 32 6.3 TIME FRAME 33 6.4 SECURITY 33 7.0 CONCLUSION..................................................................................35 REFERENCES ........................................................................................36 .0 INTRODUCTION Vietnam has experienced more than one decade of high growth rate and it is estimated to be the second highest GDP growth country this year (?7.3%), just after China (8.5%) (source: www.adb.org). Vietnam has recently implemented the AFTA agreement and it will join WTO in the next several years. Together with this integration and globalization trend, e-commerce now is becoming a hot issue for all business organizations and economic forums in the country. As its nature, banking industry is always the first mover to pave the way for other industries to go ahead
Working in retail travel
PART 1 Working in Retail Travel Travel agencies in the UK are usually independently owned or part of a chain of agencies owned by a single company often referred to as the 'multiple'. A typical day for travel agencies includes booking hotels, car and airplane reservations, and also researching destinations for clients. Most travel agencies make their money from commission which consultants receive from companies e.g. tour operators, airlines, hotels by booking hotels, flights or tour packages. Different travel agencies that operate in the UK are: Lunn Poly Going Places Thomas Cook These are multiple travel agencies; they all work very closely with a tour operator which is either their parent company or is owned by the same group. Going places is owned by Air tours and Lunn Poly is owned by Thomson, a tour operator. In turn both Lunn Poly and Thomson are owned by the TUI group. Travel agent They sell a range of leisure and business travel products and services to outgoing, incoming and domestic tourists to meet their requirements. There are about 7,000 travel agencies in the UK which are members of the Association of British Travel Agents (ABTA). There are different types of travel agencies which include multiple, independent, maniple, e-agent and holiday hypermarkets. Travel agents are the link between the customers and the tour operators, and other principals such
Developing Service Procedures
INTRODUCTION The purpose of this report is to critique a particular service procedure of a service operation and then make recommendations on how it could be improved, by developing revised procedures to enhance the ability of the organisation to exceed the ever increasing demand for service quality. The Placement carried out over the summer at the Marriott Playa Andaluza was focused at enhancing my knowledge and understanding of the housekeeping department. Margaret Kappa Et al (1997, p.8) describe hotel divisions and departments by dividing them into categories: 'revenue centres' and 'support centres'. Revenue centres are those that sell goods or services to guests and in doing so generate revenue for the hotel, this would include areas of the hotel, such as, the front office and food and beverage outlets. Support centres on the other hand do not directly generate revenue, but play a supporting role to the hotel's revenue centres. The housekeeping department is a major support centre within the rooms division. Without the housekeeping department the front office would not be able to sell any rooms, and in doing so means that the hotel would not be able to generate any revenue. This means that an effective housekeeping service can be seen as an important service operation. Aim The housekeeping department of the Marriott Playa Andaluza provides a number of cleaning
