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midterm 1 4x6 card

midterm 1 4x6 card - Engineering Method 1 Recognize...

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Engineering Method : 1. Recognize & understand the prob. 2. Accumulate data & verify accuracy. 3. Select proper theory or principles/equations to solve prob. 4. Make necessary assumptions. 5. Solve prob. 6. Verify/check results. Prob Presentation : Prob statement, Diagram, TheoryEquations, Assumptions, Solution. Studies: Surveys, Scientific Experiments, Observations Graphs: Linear y=mx+b, Exponential y=be mx semi-log, Power y=bx m log-log Absolute Syst: Force=M(L/T 2 ), Velocity=L/T, Energy=ML 2 /T 2 , Pressure =M/LT 2 , Momentum=ML/T Thermo: Convert thermal or chemical energy to useful work PE: stored energy due to height, KE : energy due to objects velocity Internal Energy (U): energy possessed by molecules (which are in constant motion) Heat (Q): energy that is transferred by viture of temp dif Work (W): mechanical work is performed when energy used to move object against resistance 1 st Law of Thermo: energy can’t be created or destroyed, only transferred Fossil Fuels: energy rich

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midterm 1 4x6 card - Engineering Method 1 Recognize...

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