In Sec. 8.1, it was stated that a high?purity Cu specimen, after 30 percent deformation at room temperature was found to have a recoverable strain energy of about 25 J/gmol. The Burgers vector for Cu is 0.236 nm, and the shear modulus about 5.46 ? 10????. Determine the dislocation density of an array of uniformly distributed alternating right and left?hand screw dislocations in the Cu that might possess this amount of strain energy.
What will be an ideal response?
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?When two or more atoms combine, the resulting structure is known as a(n) ____.
A. ?isomer B. ?molecule C. ?isotope D. ?polymer
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Read the setting on this metric micrometer scale graduated in 0.01 mm.
Fill in the blank(s) with the appropriate word(s).
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Solve the quadratic equation: 4x
+ 16 = 3x
+ 80.
Fill in the blank(s) with the appropriate word(s).
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It is the responsibility of ____ to be aware of their surroundings and ensure that the environment is safe.
a. the foreman and supervisor b. the inspectors c. the electricians d. everyone
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