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Typical values for the dislocation density in annealed and heavily deformed copper are 107 and 1011 cm-2. (For copper: lattice parameter a = 0.361 nm, E = 110 GPa, υ = 0.30, ρ = 8.96 Mg/m3.)
A. Calculate the average distance between dislocations for both cases. For sim- plicity, assume all of the dislocations are parallel and in a square pattern.
B. Calculate with Equation the energy/length of dislocation line for both cases assuming the dislocations are screws.
two heavily insulated tanks are connected by a valve. tank a has a volume of 600l and contains water at 200kpa and
a centrifugal pump runs at 1500 rpm and delivers 1500 m3hr of water againt a head of 70m when absorbing 350 kw. the
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Determine the phase or phases in a system consisting of H2O at the following conditions and sketch P-v and T-v diagrams showing the locations of each state:
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the system is released from rest in the position shown. the masses of the collar a and the box b are ma 90 kg and mb
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