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1. Is it possible for two screw dislocations of opposite sign to annihilate each other? Explain your answer.
2. For each of edge, screw, and mixed dislocations, cite the relationship between the direction of the applied shear stress and the direction of dislocation line motion.
3. (a) Define a slip system.
(b) Do all metals have the same slip system? Why or why not?
4. (a) Compare planar densities (Section 3.11 and Problem 3.53) for the (100), (110), and (111) planes for FCC.
(b) Compare planar densities (Problem 3.54) for the (100), (110), and (111) planes for BCC.
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the adjoining figure illustrates a piston-cylinder arrangement. this cylinder contains helium at 21oc and 1.379 mpa.
The capillary rise, h, of a liquid in a tube varies with tube diameter, d, gravity, g, fluid density, p, surface tension, Y, and the contact angle, B. (a) Find the dimensionless form of this statement. (b) If h = 3 [cm] in a given experiment, what wi..
Calculate the electrical conductivity of this material, assuming electron and hole mo- bilities of 0.1 and 0.05 m2/V-s, respectively.
High school Yr 12 aeronautical Engineering Module - mechanics, PLease help- i seem to get the incorrect answer but didn't know where i have gone wrong?
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a freshwater jet boat takes in water through side vents and ejects it through a nozzle of diameter d75 mm the jet speed
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