are the Proles. The Party goes to great lengths in order to keep the society of Oceania in check‚ ensuring allegiance through party slogans‚ extreme indoctrination‚ and the constant reminder that “Big Brother is Watching You.” The Party Slogans force the citizens to subconsciously believe the lies The Party tells in order to control the people. The main slogans “War is Peace‚ Freedom is Slavery‚ Ignorance is Strength”
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Elastic Collision between carts of equal mass: Collision 1 Mass (kg) Initial Velocity (m/s) Final Velocity (m/s) Momentum Initial (kg*m/s) Momentum Final (kg*m/s) Red Cart 2.0 + 50.0 0 0 0 Blue Cart 2.0 - 50.0 0 0 0 Elastic Collision between carts of unequal mass: Collision 2 Mass (kg) Initial Velocity (m/s) Final Velocity (m/s) Momentum Initial (kg*m/s) Momentum Final (kg*m/s) Red Cart 1.0 + 50.0 -33.33 50 -33.33 Blue Cart 2.0 - 50.0 66.66
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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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HG-1 THE HEAT OF FUSION OF ICE Introduction When heat flows into a system there are a number of things that can happen. One result could be a temperature rise. Or‚ the system might even catch fire. A third possibility is a change of state. As you know‚ matter exists in three states (or maybe four‚ the fourth being a plasma)‚ solid‚ liquid and gaseous. At different temperatures‚ the same substance may be in different states. Each state is characterized by the way the interatomic forces act. In solids
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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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1? Justify your finding. 3. Repeat the instruction 1 above again but vary the intensity of light this time. Is your finding different as found in 1 and 2? 4. As you shorten the wavelength of the light source‚ what change did you notice about electron speed? Explain the possible cause of the change. 5. Tabulate the wavelength required to just start a current flow for the 6 available surfaces. (Note: Be sure battery voltage is set to zero.) intensity is set for 5% Surface Wavelength
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discuss all the questions below in depth. Procedure and Data: 1. Tie the two pieces of string to the scales. 2. Hang a 1.00kg mass from the center of the string and move the clamps together such that the total angle between the two strings is about 15 degrees (half angle = 7.50). 3. Use the protractor to measure the exact angle between the strings. Record the angle and the force (scale reading) in the table. Also measure the appropriate sides of the triangles and compute the angles trigonometrically
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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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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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used to promote economic stability and control emotions of the inhabitants living in England. <br> <br>The economy-oriented society relies on hypnopaedia to keep consumers eager to spend by them with catchy‚ consume-driven phrases. For example‚ one slogan tells people that they "do love flying. [They] . . .do love flying" (33). A resident of London likes being high‚ using helicopters for all transportation‚ and the feeling of being safe in an indestructible machine. The gas-guzzling machines cost enormous
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