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stephen sarabia

stephen s.

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Identify the region that has less than 45 days of rainfall per year teleperformance assessment

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The polymerization of vinyl acetate with AIBN at 60˚C has the following characteristic rate constants: k p = 2.0 x 103 L mol-1 s-1 k t = 2.8 x 107 L mol-1 s-1 f⸳k d = 9.6 x 10-6 s-1 You set up two reaction vessels side by side. In the first vessel, you run bulk polymerization of vinyl acetate, and in the second vessel, you run solution polymerization of 1.0 mol L-1 vinyl acetate in benzene. In both cases, your total reactor volume is 100 mL and you use 0.1 g of AIBN as your initiator. You can ignore the volume that AIBN contributes to the reaction solution.

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1) Draw the mechanism for the following SN1 chemical reaction. The nucleophile CH3NH2 also acts as solvent. All steps must be clear with correct arrow movement depicting movement of electrons. Include all steps, intermediates, and charges. (10 points) 2) Draw the reaction energy profile by clearly labeling the x-axis, y-axis, substrate, transition state, intermediates, and products. Br excess CH3NH2 NH + HBr

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Use the following information to answer the question(s) below. Big Bend National Park in Texas is mostly Chihuahuan desert, where rainfall averages about 10 inches per year. Yet, it is not uncommon when hiking in this bone-dry desert to encounter mosses and ferns. One such plant is called "flower of stone." It is not a flowering plant, nor does it produce seeds. Under arid conditions, its leaflike structures curl up. However, when it rains, it unfurls its leaves, which form a bright green rosette on the desert floor. Consequently, it is sometimes called the "resurrection plant." At first glance, it could be a fern, a true moss, or a spike moss. In which combination of locations would one who is searching for the gametophytes of "flower of stone" have the best chance of finding them? 1. moist soil 2. underground, nourished there by symbiotic fungi 3. south-or west-facing slopes 4. permanently shady places 5. far from any flower of stone sporophytes

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10. Calculate the total amount of the subsidy that will benefit consumers and the total amount that will benefit producers.

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Find the characteristic polynomial of the matrix, using either a cofactor expansion or the special formula for 3x3 determinants. (Note: Finding the characteristic polynomial of a 3x3 matrix is not easy to do with just row operations, because the variable \lambda is involved.)\begin{bmatrix} \lambda & 1 & 1\\ -2 & \lambda -1\\ 0 & 7 & 0 \end{bmatrix}The characteristic polynomial is \boxed{} (Type an expression using \lambda as the variable.)

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1. 1.5 and 10-year semi-annual compounded spot rates are currently 1.0%, 2.0%, and 2.5%. A hedge fund has the following portfolio: - Long $200M par, 1-year zeros - Short $500M par, 5-year zeros - Long $450M par, 10-year zeros a. Calculate the market value, duration, and convexity of this portfolio (use calculus or the numerical approach with Ai=0.001). b. Calculate the 3 partial durations of this portfolio (again use calculus or the numerical approach with Ai=0.001). Check that the sum of partials equals duration. It will be exact with calculus and very close with numerical methods.

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0 V1 4 570V R1 1k? 0 V3 7 732V 0 V2 5 457V R3 R2 A 1k? 1k? 6 R6 C 1k? 3 R7 1k? b R8 R9 1k? d 1k? 0 R10 1k? 8 R4 1k? V4 9 556V 0 R5 1k? V5 0 419V

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1. Draw the competitive market equilibrium. Label the price, quantity, consumer surplus, and producer surplus. Is there any deadweight loss? Explain. b) Suppose that the govt. imposes a price floor, Illustrate the effect of this tax on the market, being sure to label the consumer surplus, producer surplus, and deadweight loss.

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12. The fact that financial intermediaries employ experts to carry out particular activities and so lower transactions costs is usually associated with the following economic concept: a. the law of demand b. economies of scale c. comparative advantage d. information costs 13. Assume that the desired reserve rate is ten percent, banks want to hold excess reserves in an amount that equals three percent of deposits, and the public withdraws ten percent of every deposit in cash. An open market purchase of $1 million by the Fed will see banking system deposits increase by: A) more than $1 million but less than $10 million. B) exactly $1 million. C) less than $1 million. D) more than $10 million but less than $20 million. 14. An open market sale of securities by the central bank to banks will: a. increase the banks' revenue even if the bank does nothing with the reserves. B. induce the banks to make more loans since their revenue will decrease if they do nothing. C. increase the amount of deposits in the banking system. D. increase the banks' willingness and ability to make loans.

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