HW09s10_soln - v1 = 5 5 5 5 5 v2 = 1 3 5 7 9 >> l1 =...

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Problem 1 >> F1 = ptoxyf(400,-20) %I'm using the function we wrote F1 = 375.8770 -136.8081 >> F2 = ptoxyf( 500,30 ) % You might just use the equations F2 = 433.0127 250.0000 >> F3 = ptoxyf( 700,143 ) %But you have to put in vectors F3 = -559.0449 421.2705 >> FR = F1+F2+F3 % And you must use vector addition FR = 249.8449 534.4625 >> result = xytopolar( FR ) % Another function we wrote result = 589.9768 64.9453
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Problem 2 >> F1 = [15 20 5] , F2 = [20 -5 7] % Create Vectors F1 = 15 20 5 F2 = 20 -5 7 >> FR = F1+F2 % Add them FR = 35 15 12 >> displacement = [10 5 0] %Vector displacement = 10 5 0 >> work = FR*displacement' % make disp a column vector work = 425
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Problem 3 >> v1 = [ 5 5 5 5 5 ] , v2 = [ 1 3 5 7 9 ]
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Unformatted text preview: v1 = 5 5 5 5 5 v2 = 1 3 5 7 9 >> l1 = norm( v1 ) %'length' of vector 1 l1 = 11.1803 >> l2 = norm( v2 ) l2 = 12.8452 >> cangle = v1*v2'/(l1*l2) % Note that transpose cangle = 0.8704 >> angle = acosd( cangle ) angle = 29.4962 Problem 4 >> T = [280 290 300 310 320 330 340 350]' T = 280 290 300 310 320 330 340 350 >> Cp = 1.2944e+2 - 1.6950e-1*T + 6.4781e-4*T.^2 % see the dot operator? Cp = 132.7683 134.7658 136.8929 139.1495 141.5357 144.0515 146.6968 149.4717 >> value = [ T Cp ] % A table value = 280.0000 132.7683 290.0000 134.7658 300.0000 136.8929 310.0000 139.1495 320.0000 141.5357 330.0000 144.0515 340.0000 146.6968 350.0000 149.4717...
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This note was uploaded on 05/04/2010 for the course ECO 304K taught by Professor Hickenbottom during the Spring '10 term at University of Texas.

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HW09s10_soln - v1 = 5 5 5 5 5 v2 = 1 3 5 7 9 >> l1 =...

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