Calculate the value of the diffusion coefficient
D (inm2/s) at 703°C for the diffusion of some species in ametal; assume that the values of
D0 and
Qd are 5.6 x 10-5 m2/sand 177 kJ/mol, respectively . . .
Your assignment will be to: 1. Detail the equipment used, and the operating parameters in each case. Note that this may vary between groups depending on equipment availability. 2. Present the results for each material, drawing comparison between the samples. 3. Interpret the results to the extent possible, in particular determining: a. Single or multiwall structure b. Tube diameter c. Degree of uniformity (qualitative or otherwise) d. Any evident contamination (qualitative or otherwise) 4. Compare the strengths of each technique and the way they complement each other for the two samples. You will be expected to relate your interpretations to published methods or similar results. The report (including Exercise 2) should be approximately 2000 words in length.
Attachments:
5. Cosmopolitan Islamic civilization in the Middle Ages as illustrated by the traveling career of Abu Abdullah Ibn Battuta.
– 1 page of the concept of Osmosis (background information). Explain the terms solvent and solute and how they relate to cells. What are hypertonic solution, hypotonic solution, isotonic solution? How do these affect the movemoent of water in and out of a cell? (would a cell shrink, burst, not change? Would it matter if the cell had a cell wall?).
– 1 page. Times New Roman, Double space.
– 2-3 sources (APA ciation)
Assignment
For this assignment, you will research assessment options for the offender population that you are writing about in your Signature Assignment.
Find three peer-reviewed journal articles that address common conditions and assessment measurements used with this population. Prepare an annotation for each article.
After you have completed the annotations, prepare a 1-page summary that includes the following:
Length: Three annotations; 1-page summary
Your paper should demonstrate thoughtful consideration of the ideas and concepts presented in the course by providing new thoughts and insights relating directly to this topic. Your response should reflect scholarly writing and current APA standards. Be sure to adhere to Northcentral University’s Academic Integrity Policy.
how to find missing frequency in known median
The LP relationships that follow were formulated by Richard Martin at the Long Beach Chemical Company. Which ones are invalid for use in a linear programming problem, and why? ,Maximize = 6X1 + 12 X1X2 + 5X3 ,Subject to: 4X1X2 + 2X3 ? 70 ,7.9X1 – 4X2 ? 15.6 ,3X1 + 3X2 + 3X3 ? 21 ,19X2 – 13 X3 = 17 ,-X1-X2 + 4X3 = 5 ,4X1 + 2X2 + 3 ?X3 ? 80
1. (20 points) Consider the followingtax system. You pay 25 percent of your income after adeduction of $5000. Complete the following table: Is this tax system progressive, regressive,proportional? Explain. 2. (15 points). Suppose the income tax ina certain nation is computed as a flat rate of 5 percent, but notax is levied above $50,000 in taxable income. Taxable income iscomputed as the individual’s income minus $10,000; thatis, everyone gets a $10,000 deduction. What are themarginal and average tax rates for each of the following threeworkers? (Evaluate the marginal tax rate at eachperson’s current income level). There is no refundabletax credit available. a. A part‐time worker with annual income of $9,000. b. A retain salesperson with annual income of $45,000. c. An advertising executive with an annual income of$600,000. . . .
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