were able to be extrapolated. Based on the literature values‚ the cereal box spectrometer proved its value as a decently accurate spectrometer. Introduction: Every element and subsequent atom associated emits light; also know as electromagnetic radiation‚ when in an excited state. Analyzing this emitted light can give insight to the makeup and characteristics of them. The light given off by an energetically excited atom is not a continuous distribution of all possible wavelengths‚ but rather consists
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SENSATION AND PERCEPTION APSY 382 Aug 27th‚ 2012 Chapter 1 Psychophysics – how we measure perception (loose definition) Sensation = unidimensional = varies in one way (sounds get louder or softer) Perception = multidimensional = varies in many ways (there are a lot of kinds of books) Perception – knowing the present Memory – knowing the past Thinking – knowing the future Cognition = the influence of perception‚ memory‚ and thinking Aug 29th‚ 2012 Basic principles of perception 1. Stimulation
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Abstract: Finding the half-life of Aluminum-28 is the purpose of this lab. The class met at the Radiation Center and exposed small amounts of aluminum to energetic neutrons and watched the samples decay. After creating a table with background count and gross counts of the aluminum remaining at fifteen different one-minute intervals‚ this allowed the net counts per minute at each interval to be found as well. Next a graph of the net cpm verses time was plotted. After each interval was plotted
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Sydney Schell October 18th‚ 2012 Identifying Metallic Components Introduction: Spectroscopy is the study of the electromagnetic radiation emitted or absorbed by the atoms and molecules. A photon in short is light. Atoms produce light by putting energy in‚ the electron then becomes excited and goes up an energy level‚ the electron then falls back down to its ground state‚ and out comes a photon (light). The electromagnetic spectrum contains color that we can and cannot see. The color blue has
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Have you ever wondered why we see the grass green or the ocean blue ?. Liquid water absorbs short wavelength light (UV)‚ long wavelengths and infrared light. Each color has a different wavelength‚ so it is refracted at a slightly different angle‚ resulting in dispersion. The colors visible spectrum results in the light response‚ the absorption‚ reflection‚ transmission and in the color addition/subtraction. Out of the visible light spectrum the most absorbed is the red-orange along with the yellow-green
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MA and Surgical mask‚ Sterile gloves and Sterile gown for Physician. Scenario # 4: The Medical Assistant is assisting Mrs. Johnson to the exam table in the patient room. Mrs. Johnson has Stage 2 lung cancer and is undergoing chemotherapy and radiation treatments – she tells the Medical Assistant that the oncologist called and told her that her WBC count is 2.1 and that she cannot be around anyone who is ill‚ etc. Isolation gown‚ Face mask with shield‚ examination gloves‚ for MA. Also an Isolation
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flame‚ the metal ions will begin to emit light. Based on the emission spectrum of the element‚ the compound will turn the flame a characteristic color. 4. A. Quanta- a discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents; an analogous discrete amount of any other physical quantity‚ such as momentum or electric charge. B. Ground State- the lowest energy state of an atom or other particle. C. Excited State- a stationary state of higher energy than the
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oscillating current to the antennas sets the electrons in motion. These electrons‚ being accelerated‚ create discontinuity in the electromagnetic field. •Briefly explain what is actually producing the radio signal. Energy‚ in the form of electromagnetic radiation‚ exerts steadily oscillating force on charges (electrons). The force is originally exerted strongly in one direction‚ but then reverses for the cycle to continue. The radio waves push on the electrons in the metal in the antenna‚ causing the oscillating
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PART I PHYSICS & CHEMISTRY EXAMPLE FOR DIFFERENT TYPES OF QUESTIONS Instruction: The Question cum answer booklet contains 39 questions including sub question of match the following and main questions. 1. Due to heavy traffic near the school the department of traffic police wants to install automatic traffic lights. This am be done by using the Principle of a) Raman effect b) Radiography c) Holography d) Photoelectric effect 2. Water is to be sterilized for drinking purpose without using any chemicals
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Getting diagnosed with cancer is just about the worst kind of news anyone can get. Approximately 38.5% of men and women will be diagnosed with cancer at some point in their life (1). Unfortunately it seems that the majority of people don’t have a comfortable understanding about what this disease really is‚ what the available treatments are‚ and how they work. Cancer is most definitely always fatal‚ unless caught in time and treated properly. Just by taking a look at the statistics‚ it’s easy to
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