What is meant by the term dislocation creep and how does it differ from diffusion?
What will be an ideal response?
Answer: Dislocation creep is the formation, motion and destruction of linear defects in the crystal lattice while diffusion is about point defects, notably vacancies, and how they move through the crystal during deformation.
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In the figure, [INSERT FIGURE 6-12. REMOVE ALL TEXT EXCEPT " ", "Surface", "500 m" and "800 m". REMOVE RED DASHED LINE AND BLUE ARROWS. NO CAPTION]
A) the air above 500 m is stable B) the air above 500 m is unstable C) the air below 500 m is more stable than the air above 500 m D) the air above 500 m is more unstable than the air below 500 m
Which air mass appears to predominately influence the humid subtropical region?
A) Maritime equatorial (mE) B) Continental tropical (cT) C) Continental polar (cP) D) Maritime tropical (mT) E) Maritime polar (mP)
These features block material from blocking harbor entrances
A) Breakwaters B) Groins C) Jetties D) Tombolos
Where will the North Star be, relative to the celestial coordinates, 12,000 years from now?
A) 23 1/2 degrees away from the pole, due to precession. B) Several degrees from the North Pole position, with Vega as the North Star. C) Right where it is now; it isn't going anywhere. D) None of these is correct.