4-APR-2014 1 TABLE OF CONTENTS 1 Introduction .................................................................................................................................... 2 2 Methods .......................................................................................................................................... 2 3 Results............................................................................................................................................. 3 4 Discussion...
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differential voltage at zero. The output of the op-amp will be the product of input voltage and the gain set by the feedback. A commonly used op-amp is A741 with the pin diagram and symbol as shown below: 1 – Offset null 1 5 – Offset null 2 2 – Inverting input 6 – Output 3 – Non-inverting input 7 – Positive DC supply 4 – Negative DC Supply 8 – Not connected OVERVIEW Part A: Measurement of offset parameters The circuit configuration was constructed as shown in Figure 1‚ which VCC
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What You Need To Know for the Chemistry Regents Exam The Test The Chemisty Regents Exam is broken down into three sections: Part A: 35 mulitple choice questions from all units covered over the course of the school year. Part B: Approximately 25 questions‚ with a mix of short answer and multiple choice. Questions focus on the Reference Tables‚ graphing‚ and laboratory experiments. Part C: Approximately 15 short answer questions‚ most broken down into smaller parts. This is often an
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CHE 242 Tutorial 3: Problems & Answers Week 4: Feb 2- 6‚ 2009 1. Consider a gas that occupies 1.00 dm3 at a pressure of 2.00 bar. If the gas is compressed isothermally at constant external pressure‚ Pext‚ so that the final volume is 0.500 dm3‚ what is the smallest value Pext can have? Calculate the work involved using this value of Pext. Solution For compression to occur‚ the value of Pext must be at least as large as the final pressure of the gas. P1 = 2.00 bar‚ V1 = 1.00 dm3‚ V2 = 0.500
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toluene respectively. 2) In a separate test tube add 4 ml of 0.01mol L-1 KMnO4 to 2 ml of 2mol L-1 H2SO4 3) Add 1 ml of this acidified KMnO4 solution to each of the test tubes containing the hydrocarbons. Shake each test tube gently and record any change that takes place in the aqueous layer over about 5 minutes. Reaction of hydrocarbons with bromine water: 1) Into three separate‚ labeled test tubes place 1 ml of cyclohexane‚ cyclohexene and toluene respectively. 2) Add 1 ml of bromine water
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Unit 2 Research Paper 1: Experiment A problem that I think needs to be solved is traffic lights causing the back up of traffic. Traffic lights cause a delay in traffic and cause for traffic back up. It causes everyone to be late when there is no need for it. From personal experience I have been late of several occasions due to backed up traffic because of traffic lights. There are certain spots where traffic lights are not needed and they are only backing up traffic more than needed. Traffic lights
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t Actions * Flexion: decrease in joint angle from anatomical postion (bend elbow‚ flexing forearm) * Extension: return to anatomical position from flexion * Abduction: away from body * Adduction: return of body to anatomical position * Rotation: circular * Lateral: anterior surface to lateral side * Medial: anterior surface to medial side * Circumduction: conical shape * Protraction: horizontal movement in anterior direction (jaw forward) * Retraction:
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|27.9 |29.3 |Exothermic | | |acid [aq] | | | | | | |2. |Sodium Hydrogen Carbonate [l] + Citric |10.0 cm³ |10.0 cm³ |28.5 |28.0
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are all more reactive than copper. ● (2) I believe this solution to be Sodium Sulfate because of the following reasons: ○ Blah blah blah ○ Blah blah ○ blah blahhh Unknown 1 ● NaCl ○ ○ ○ ○ ○ Unknown 2 yellow flame 7 ph precip with agno3 therefore one of the halides (cl‚ br‚ i) white solid from evaporation conductive ● Water ○ no residue when evaporated ○ almost neutral ph ■ ^my group got pH 9 tho?? ○ no conductivity there was conductivity for 2 contamination could have been present causing the conductivity
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ν = cλ 1) C) νλ = c D) λ = c ν E) ν + λ = c 2) The photoelectric effect is __________. A) a relativistic effect B) the ejection of electrons by a metal when struck with light of sufficient energy C) the darkening of photographic film when exposed to an electric field D) the production of current by silicon solar cells when exposed to sunlight E) the total reflection of light by metals giving them their typical luster 2) 3) Low-frequency electromagnetic fields with potential
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