1. Compare the energy of the crystal containing an edgedislocation with that of a crystal...

Question 1: (a) A perfect crystal of copper is tensile tested. The crystal is oriented so...

Question 1: (a) A perfect crystal of copper is tensile tested. The crystal is oriented so that the direction perpendicular to its slip plane is at 28° relative to the tensile direction. Consider three possible slip directions (relative to the tensile direction) of 81°, 72°, and 62.5°. Prove which of these is most favored. (b) For this favored direction, calculate the minimum shear stress required to initiate slip. Assume that this copper crystal plastically deforms beginning at a tensile stress...

1. The complex ion, [Ti(H20)6]^2+, has a maximum absorption near 498 nm. Calculate the crystal field...

1. The complex ion, [Ti(H20)6]^2+, has a maximum absorption near 498 nm. Calculate the crystal field splitting energy (in kJ/mol) for this ion. 2. Determine the molar solubility of AgBr in a solution containing 0.200 M NaBr. Ksp (AgBr) = 7.7x10^-13. Show All work please

AlB2 and MgB2 1) Investigate and produce the crystal structure of each element 2) Compare the...

AlB2 and MgB2 1) Investigate and produce the crystal structure of each element 2) Compare the structures 3) Identify the (111) plane 4) Show the lattice parameters of each 5) Can you explain the interaction between Mg and AlB2 only based in crystal structures?

A-What is the trend of atomic size in the periodic table and why? B-Determine the bonding...

A-What is the trend of atomic size in the periodic table and why? B-Determine the bonding type of given atoms (Fe-Fe, Ca-Cl, O-O, H-H) C-Calculate the density of Al, given its atomic radius and crystal structure. D-Calculate the atomic packing factor for FCC and BCC structures E-Compute the elongation due to thermal expansion of given material. F-Given the vacancy concentration, calculate Evf G-How can edge dislocation move? Draw illustrations. H-Why are vacancies important to dislocation motions? I-What is the mechanism...

(1) how Bragg diffraction occurs in a crystal with electrons inside (2) what caused the energy...

(1) how Bragg diffraction occurs in a crystal with electrons inside (2) what caused the energy levels to break into a “gap”, (3) what is the different between a conductor such as Cu and a semiconductor such as Si?

1-which one does not correspond to mechanism strengthening? a-alloying or dopping with impurities b-grain-size reduction c-grain...

1-which one does not correspond to mechanism strengthening? a-alloying or dopping with impurities b-grain-size reduction c-grain growth d-strain hardening 2-in polycrystals, the grains with the lowest resolved shear stress always yields firts. true or false 3-resolved shear stress is the result of the application of simple shear stress to a piece of material. true or false 4-decrease on strain hardening? a-percent enlogation b-elastic modulus c-yield strenght d-hardness 5-which term is different from other options? a-strain hardeninh b-dislocation hardening c-cold working...

Comparison of two energy drinks. Consider the following study to compare two popular energy drinks. For...

Comparison of two energy drinks. Consider the following study to compare two popular energy drinks. For each subject, a coin was flipped to determine which drink to rate first. Each drink was rated on a 0 to 100 scale, with 100 being the highest rating. Subject Drink 1 2 3 4 5 A 48 90 83 96 93 B 49 78 66 88 71 Is there a difference in preference? State the appropriate hypotheses. Carry out a matched pairs t-test...

1. compare the energy of a hydrogen bond to an average chemical bond 2. compare a...

1. compare the energy of a hydrogen bond to an average chemical bond 2. compare a hydrogen bond length to an average chemical bond length

A steel wire has the following properties: Length = 5.00 m Cross-sectional area = 4.60×10−2 cm2...

A steel wire has the following properties: Length = 5.00 m Cross-sectional area = 4.60×10−2 cm2 Young's modulus = 2.0×1011Pa Shear modulus = 0.84×1011Pa Proportional limit = 3.60×108Pa Breaking stress = 11.0×108Pa The proportional limit is the maximum stress for which the wire still obeys Hooke's law (point B in (Figure 1)). The wire is fastened at its upper end and hangs vertically. A) How great a weight can be hung from the wire without exceeding the proportional limit? B)...

1.(a) MgO has the rock-salt structure. The MgO crystal has a value of 0.514 for the...

1.(a) MgO has the rock-salt structure. The MgO crystal has a value of 0.514 for the radius ratio. The length of a side of the unit cell for MgO is 4.24 Å. (i) Draw the structure of this molecule. (ii) Determine the radii of Mg 2+and O2-, assuming that the O 2-ions are in contact with one another. (b) Define what is meant by the “coordination number” of a crystal structure. (c) Determine the coordination number for each of the...