(a) from the following data of yield strength versus (grain diameter)–1/2 for a cuzn alloy, determine values for the constants σ0 and ky in hall-petch equation. d-1/2 (mm)-1/2 σy (mpa) 4 75 12 175
(b) now predict the yield strength of this alloy when the average grain diameter is 1.0 × 10-3 mm.

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.

maria has a savings account that is earning simple interest. if she started with $200 in the account and has earned a total of $8 in interest in two years, what is the rate of the account? use the formula  .