

5. Briefly describe the phenomenon of coring, in terms of microstructure, and why it occurs
Briefly describe the phenomenon of strain hardening in terms of dislocations and strain field interactions.
Briefly explain why, upon solidification, an alloy of eutectic composition forms a microstructure consisting of alternating layers of the two solid phases. What is this structure called? What kind of effect does this structure have on the melting point of the alloy and why? (5 points)
Briefly explain why, upon solidification, an alloy of eutectic composition forms a microstructure consisting of alternating layers of the two solid phases. What is this structure called? What kind of effect does this structure have on the melting point of the alloy and why? (5 points)
4. Briefly explain why, upon solidification, an alloy of eutectic composition forms a microstructure consisting of alternating layers of the two solid phases. What is this structure called? What kind of effect does this structure have on the melting point of the alloy and why? (5 points)
17.20 Briefly describe the phenomenon of passiv-ity. Name two common types of alloy that passivate.
Explore how the phenomenon of peak aging and over aging occurs, and why the size of the precipitates has a great impact on the strength and other mechanical properties of precipitation-hardened martensitic stainless steel.
Briefly describe evidence that led Darwin to the idea that evolution occurs by natural selection?
15. Ctenophores were once thought to be cnidarian. Briefly describe their differences in terms of major organ systems, and life history.(5 points)
What is the medical name for heartburn? Briefly describe, in your own words, why chest pain occurs in patients who have heartburn. Do you think chest pain could be related to more than just heartburn?
Development economists consider the phenomenon of child labor as an example of 'bad Discuss briefly any two alternatives to a complete ban on child 1 Distinguish between a tenant farmer and a sharecropper. Whose exposure to risk is greater and why?