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jason peral

jason p.

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Joshua has been complaining about pyrosis after his meals. Which of the following is probably the primary cause of this condition? Peristalsis is too slow. The cardiac sphincter contracts too often. The bolus of food in the esophagus is too big. The lower esophageal sphincter remains open for too long.

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One likely result of an effective or binding price ceiling is that

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Intro Nautilus Clothing's stock has a 60% chance of producing a 15% return, a 20% chance of producing a 19% return, and a 20% chance of producing a -6% return. Part 1 What is the stock's expected return? 3+ decimals Submit Attempt 4/10 for 8 pts.

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Jump to level 1 numbers = (38, 14, 16, 10, 20, 42, 43, 59, 80, 54) Partition(numbers, 5, 9) is called. Assume quicksort always chooses the element at the midpoint as the pivot. What is the pivot? What is the low partition? What is the high partition? What is numbers after Partition(numbers, 5, 9) completes?

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Let and Determine the value of each of the following: (a) $g(-5) = 0$ (b) $g(-3) = 3$ (c) $g(2) = $ (d) $g(4) = $ (e) The absolute maximum of $g(x)$ occurs when $x = $ and is the value $ $ It may be helpful to make a graph of $f(x)$ when answering these questions. $f(x) = \begin{cases} 0 & \text{if } x < -4 \\ 3 & \text{if } -4 \le x < 1 \\ -5 & \text{if } 1 \le x < 3 \\ 0 & \text{if } x \ge 3 \end{cases}$ $g(x) = \int_{-4}^{x} f(t)dt$

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Evaluate \(\vec{F} \cdot d\vec{r}\), where \(\vec{F}(x, y) = (x^2 + y + 2)\vec{i} + (xy)\vec{j}\) for each of the following curves: (a) C is the portion of \(y = x^2 - 2\) from \(x = -3\) to \(x = 3\) (b) C is the line segment from \((-3, 5)\) to \((1, 4)\)

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Problem 1. (1 point) Let $f(x) = \sqrt{1 - x}$ and $g(x) = \sqrt{25 - x^2}$. Find $f + g$, $f - g$, $f \cdot g$, and $\frac{f}{g}$, and their respective domains. 1. $f + g = \boxed{} 2. What is the domain of $f + g$? Answer (in interval notation): $\boxed{} 3. $f - g = \boxed{} 4. What is the domain of $f - g$? Answer (in interval notation): $\boxed{} 5. $f \cdot g = \boxed{} 6. What is the domain of $f \cdot g$? Answer (in interval notation): $\boxed{} 7. $\frac{f}{g} = \boxed{} 8. What is the domain of $\frac{f}{g}$? Answer (in interval notation): $\boxed{}$

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For the following standard boost converter, given the original circuit diagram and the small signal model as shown in the figure. L R$_1$ $i_L$ +\(V_s\) • Small-signal model L R$_1$ 1:D +\(V_s\) $\frac{V_o}{D}$d + $I_Ld$ R$_c$ R$_o$ $V_o$ C The duty ratio to output transfer function can be derived as $\frac{\hat{v}_o(s)}{\hat{d}(s)} = G_{vd}(s) = K_{vd}\frac{(1-\frac{s}{\omega_1})(1+\frac{s}{\omega_2})}{1+\frac{s}{Q\omega_o}+\frac{s^2}{\omega_o^2}}$ where $K_{vd} = \frac{V_s}{(1-D)^2} = 100$ $\omega_o = \sqrt{\frac{(1-D)^2}{LC}} = 250$ $Q = R\sqrt{(1-D)^2}C = 2$ $\omega_1 = \frac{L}{(1-D)^2R} = 1000$ $\omega_2 = \frac{1}{CR_c} = 10000$ Sketch the Bode plot for this non-minimum phase system. (4) (5) (6) (7) (8) (9)

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Question 14 It may be possible to prepare liquid benzene from gaseous acetylene (ethyne) according to the following unbalanced reaction at 298 K: $C_2H_2(g) \rightleftharpoons C_6H_6(l)$ $S^\circ C_6H_6(l) = 172.8 \text{ J.K}^{-1}.\text{mol}^{-1}$ $S^\circ C_2H_2(g) = 200.85 \text{ J.K}^{-1}.\text{mol}^{-1}$ $\Delta H_{sys} = -632.0 \text{ kJ}$ $\Delta G = -503.86 \text{ kJ}$ (a) Predict the sign of $\Delta S_{sys}$ and explain your reasoning. $\Delta H_{sys} = -632.0 \text{ kJ } \Delta G = -503.86 \text{ kJ}$ (b) Calculate $\Delta S_{sys}$, $\Delta S_{surr}$ and $\Delta S_{universe}$. Determine if the reaction is spontaneous. (c) Is the reaction always spontaneous? Explain briefly. (d) A new voltaic cell containing Ni/Ni$^{2+}$ and a H$_2$/H$^+$ half-cell is constructed under the following conditions: [Ni$^{2+}$] = 0.020 M; [H$^+$] = 2.5 M; P(H$_2$) = 0.30 atm. Reduction potentials: $2H^+(aq) + 2e^- \rightarrow H_2(g) \text{ ; } 0.00 \text{ V}$ $Ni^{2+}(aq) + 2e^- \rightarrow Ni(s) \text{ ; } -0.25 \text{ V}$ (i) Write a balanced equation for the overall cell reaction. (ii) Calculate $E^\circ_{cell}$. (iii) Calculate Q. (iv) Calculate $E_{cell}$. Is the forward reaction spontaneous? Explain.

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Q4: Find $V_a$ when $t<0$, $t>0$ and $t=\infty$.

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