“Morning mum‚ aren’t you meant to be at work today‚ it’s Saturday? Stefan Questioned‚ “Not today” his mum replies with a small grin “today is my day off‚ I feel like… shopping” she says “oh sweet‚ can you take Ana with you‚ so I can hang out with Luka and Jamey at the beach‚ after all she would love to go shopping with you?” asked Stefan with his fingers crossed and trying to put on a persuasive tone and a pleading face “Sure‚ but I want you to be extra careful‚ punt on your sunscreen‚ cross the
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THIS FILE DOWNLOADED FROM THE IB NOTES SITE: http://ibnotes.tripod.com/ TOPIC 2— MECHANICS FOUNDATIONS: • • • Displacement— A measured distance in a given direction— tells us not only the distance of an object from a particular reference point‚ but also the direction from the reference point— is a vector. Velocity— Is speed in a given direction‚ and is also a vector. Acceleration— is the rate of change of velocity in a given direction (velocity/time). The unit in SI is metres per second
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We’re Not Afraid to Die Objectives * Sea voyage-main incidents (date wise) * Qualities/Values necessary to overcome adversities * Crewmen * Ile Amsterdam * Children (Suzanne & Jonathan) * The ship-Wavewalker 2 marks How did Jonathan react to the desperate situation they found themselves in on 5th January? Jonathan asked his father if they were all going to die. On the father’s reassurance‚ he said that they were not afraid of dying if they could all be together – his dad
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not any physical path is used for transmission. What are three important characteristics of a periodic signal? Period (or frequency)‚ amplitude and phase. All periodic signals can be broken down into other signals... most commonly sine/cosine waves‚ but there are others too. These components will each have their own frequency‚ amplitude and phase that combine into the original signal. The strange part of the question is the phase. A signal on its own does not have a phase unless you provide
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1 Unit – 4 Engineering Physics OPTICS Dr. V.P.N. Padmanaban M.Sc.‚ Ph.D.‚ Associate Professor 1. Interference Interference of light waves is a superposition phenomenon. This phenomenon was first described by Thomas Young in 1801. It provided strong evidence for the wave theory of light. In Young’s interference experiment‚ an incident monochromatic light is diffracted by a slit in the first screen‚ which then acts as a point source of light that emits semicircular wavefronts. It is
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Introduction Thin Film Interference When plane electromagnetic wave of wavelength λ is incident on a dielectric surface‚ part of the electromagnetic wave is reflected‚ and part of it is transmitted. If the dielectric is thin‚ i.e. its thickness t is comparable to λ‚ the plane electromagnetic wave will be reflected again at the second dielectric surface‚ as shown in Figure 1. [pic] Figure 1. Electromagnetic waves incident at angle θ1 reflected from the top and bottom surfaces of a thin
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Homework for the week of January 28‚ 2013 Read this week’s sheet for information on the review session. Monday (due Tuesday): • Complete Friday’s homework‚ which was to “Find an article about the place at which you want to volunteer or the topic about which you want to demand change. CHUMM the article. Additionally‚ print information about the place (or cause) from its own website. CHUMM the printed information.” If your group members used the same readings (article or webpage)‚ please
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Wedge If you like to surf or hit the waves‚ the infamous "Wedge" in Newport Beach is something you have to experience at least once in your lifetime. Although The Wedge isn’t classified as a wave‚ it’s actually a 20 foot plus battering ram that was created by sheer intelligence. The way it heaves‚ throws‚ and bends behaves in ways other waves can’t begin to comprehend. If you look at it up close‚ you’ll notice that The Wedge is a combination of two waves that join together‚ resulting in a massive
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finally arrives somewhere meaningful. The transformation is a lot about getting over the loss of his wife‚ Petal‚ but also much about getting over himself as a loser and getting to a place of contentedness and confidence. Quoyle’s life rides on waves some small that are body-surfing-like‚ others that are huge and tumultuous that crash onshore with Tsunami-like devastation. Eventually‚ he manages to find a place suitable and sustaining. Quoyle began life feeling‚ believing that he had been
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Dutch physicist‚ Christian Huygens‚ studied wave behavior and proposed that the wavefronts of light waves spreading out from a point source can be regarded as the overlapped crests of tiny secondary waves – that wavefronts are made up of tinier wavefronts. Wavefronts are an array of identical waves that have the same source and travels through a homogeneous medium‚ thus their corresponding crests and troughs are in the same phase at any given time. These waves‚ then completed identical fractions of their
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