Cosmology By: Jarrett Leuta-Douyere A New Look at Sports Growing up in a family filled with athletic desire to be great at whatever sport we would participate in and understanding simple physics in Cosmetology‚ I never realized how much physics comes into play when playing sports. We don’t call it physics when were playing‚ football‚ basketball‚ baseball because it’s just a natural feeling when were throwing a ball or trying to tackle someone. When we began to learn about Newton’s law of Gravity
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Week #7 Chapter 10 Static and Current Electricity Exercises (p.221) 6. Strictly speaking‚ will a penny be slightly more massive if it has a negative charge or a positive charge? Explain. A negative charge because when it is negatively charged electrons are added to the penny. 17. What is the voltage at the location of a 0.0001 C charge that has an electric potential energy of 0.5 J (both voltage and potential relative to the same reference point)? Potential = energy Charge = 0.5 J / 0.0001
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1. Properties of light Reflection The speed of light is measured through the equation: v = λ f. However‚ it turns out that when light is reflected off a surface its speed stays the same. This was first proven by Sir Isaac Newton. Under the assumption of perfectly elastic collision‚ the laws of reflection follow from the laws of motion. To demonstrate‚ consider a particle traveling towards a flat frictionless surface whose horizontal and vertical velocity components are: VX and VY. When the particle
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Chapter 1-3: 1. B. a ball rolling down a hill 2. A. 0 3. C. Natural and violent 4. B. smoke rising up into the air 5. B. Inertia 6. C. increases 7. D. Report the findings 8. C. Physics is about the nature 9. B. Nikola Tesla Chapter 4-5: 1. B. 0 km/hr 2. D. 10m/s^2 3. B. 20 m/s 4. A. 1s 5. C. 50m/s 6. D. 2.5m/s^2 7. B. the same location 8. C. 141.1m 9. A. 2km/hr 10. A. the first kick Chapter 6: 1. F. if an object has zero.. 2. F. Pressure and force 3. T. In the absence
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Version 1.0 General Certificate of Education (A-level) January 2012 Physics A (Specification 2450) PHYA2 Unit 2: Mechanics‚ materials and waves Final Mark Scheme Mark schemes are prepared by the Principal Examiner and considered‚ together with the relevant questions‚ by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all examiners participate in and is the scheme which was used by them in this examination. The standardisation
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people fail to realize the importance of physics in athletics. People who are untrained in the scientific field may believe that an athlete’s performance level is solely based on their skill-set‚ such as strength and training. However‚ one’s ability to employ physics concepts is the true determinant for success. This is imperative to dancers; most movement and technique can be improved dramatically by following Newton’s laws accordingly. By utilizing key physics concepts‚ a dancer can improve by locating
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References: http://www.scribd.com/doc/94383213/Physics-Lab-Report Physics reference book ;pearson;James S.Walker http://www.digipac.ca/chemical/sigfigs/experimental_errors.htm
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I. Temperature Measurement 1. A thermometric property is a physical property that changes in a known way with temperature‚ and can therefore be used to measure temperature. The substance used as a thermometer must have a property that varies proportionally / linearly with temperature. [ In other words: When objects are heated or cooled‚ their temperatures change‚ along with some of their properties‚ these properties are known as Thermometric Properties.] Two commonly used thermometric properties
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Objectives: • To be able to explain how the photoelectric effect experiment works and why a photon model of light is necessary to explain the results. • To study the effect of intensity of light on photoelectric experiment. • To estimate the Planck’s constant‚ h through the simulation. • To be determine how to calculate the wavelength of light‚ the work function of the metal‚ or the stopping potential‚ if given the other two. Beginning with the plate made of sodium. Keep all the parameters
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Energetics Worksheet 1. Calculate a value for the Lattice Energy of Calcium Chloride from the following data. Draw energy cycles Std. Enthalpy of Formation of CaCl2 = - 795 kJ/ mol Std. enthalpy of atomisation of calcium = + 177 kJ/mol Std. enthalpy of atomisation of Chlorine = +121 kJ/mol 1st ionisation energy of calcium = +590 kJ/mol 2nd ionisation energy of calcium = +1100 kJ/mol Electron Affinity of chlorine = -364 kJ/mol 2. Draw Born-Haber cycles and calculate the L.E. of Cu2O and CuO
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