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elizabeth goicoechea

elizabeth g.

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In the context of checking the responsiveness of a victim, identify the position in which a victim should be placed if they are not breathing. Multiple choice question. seated standing supine prone

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A reciprocating engine is modeled using the ideal air-standard Otto cycle. The beginning state is P=1 bar and T=300 K. The compression ratio is 9. The heat addition per unit mass of air is 1000 kJ/kg. Assuming constant specific heats (evaluated at 300 K), (a) Determine the net work output per unit mass of air in kJ/kg. Air properties at 300 K (you may or may not need all of these): cv=0.718 kJ/kgK cp=1.005 kJ/kgK k=1.4 R=0.287 kJ/kgK 6 (b) Determine the thermal efficiency.

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The JRN Corporation will pay a constant dividend of $3 per share, per year, in perpetuity. Assume that all investors pay a 20% tax on dividends and that there is no capital gains tax. The cost of capital for investing in JRN stock is 12%. Assume that management makes a surprise announcement that JRN will no longer pay dividends but will use the cash to repurchase stock instead. The price of a share of JRN's stock is now closest to:

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What are the main morphological differences between the seed cones of Cycas revoluta, a cycad, and Ginkgo biloba? Group of answer choices (a)The main differences are that cycads typically develop more than two ovules per cone, whereas Ginkgo produces two ovules. Also Cycas produces ovules proximally on the megasporophyll along the petiole homolog, whereas Ginkgo produces ovules at the base of the reduced leaf blade homolog (b)The main differences are that cycads typically develop more than two ovules per cone, whereas Ginkgo produces one ovule per cone and the cones are fused into pairs. Also Cycas produces ovules on a photosynthetic megasporophyll, whereas Ginkgo produces ovules on a non-photosynthetic short shoot

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Consider the following initial value problem: $y'' + 25y = \begin{cases} 7t, & 0 \le t \le 5 \\ 35, & t > 5 \end{cases}$ $y(0) = 0, y'(0) = 0$ Using Y for the Laplace transform of y(t), i.e., $Y = \mathcal{L}\{y(t)\}$, find the equation you get by taking the Laplace transform of the differential equation and solve for Y(s) =

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What is the primary industrial application of reverse osmosis beyond water treatment? A) Concentration of fruit juices B) Recovery of precious metals C) Production of pharmaceuticals D) Gas separation processes

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2 0/1 point $I_1$ $R_1$ $I_2$ $R_2$ $R_3$ $I_3$ V Here V = 90 V, and $R_1 = R_2 = R_3 = 30 \Omega$. Then I = ____ A. 9 1 3 10

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Rank the following carbanions in order of increasing base strength. ? HC?C: ? H?C=CH ? CH?CH? I II III I < II < III II < III < I III < II < I III < I < II II < I < III

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Ti(s)+O$_2$(g)=TiO$_2$(s) $c_p(TiO_2) = 75.19 + 1.17 \cdot 10^{-3}T - 18.20 \cdot 10^1/T^2$ 298-1800 K $c_p(Ti) = 22.09 + 10.46 \cdot 10^{-3}T$ 298-1155 K $c_p(O_2(g)) = 29.96 + 4.18 \cdot 10^{-3}T - 1.67 \cdot 10^1/T^2$ 298-3000 K $\Delta H^\circ_m(Ti) = 15.45 kJ$ $T_m(Ti) = 1,941 K$ $\Delta H^\circ_{rxn, 298}(TiO_2) = -944,000 J$ $S^\circ_{298}(TiO_2) = 50.6 \frac{J}{K}$ $S^\circ_{298}(Ti) = 30.7 \frac{J}{K}$ $S^\circ_{298}(O_2) = 205.1 \frac{J}{K}$ Please write down all the intermediate steps and all necessary explanations for the solution process. Consider the oxidation of solid titanium to solid rutile (TiO$_2$). Question-1: Explicitly indicating all intermediate calculations step by step, derive the equation which gives a) The enthalpy change b) The entropy change

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2.1 2.2 THE DERIVATIVE AND ITS INTERPRETATIONS: Problem 8 Previous Problem Problem List Next Problem (1 point) Suppose that $f(x) = 6x^2 + 5x$. (A) Find the slope of the line tangent to $f(x)$ at $x = -4$. (B) Find the instantaneous rate of change of $f(x)$ at $x = -4$. (C) Find the equation of the line tangent to $f(x)$ at $x = -4$. $y = $

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