Numerade

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The rate coefficient of a chemical reaction is studied as a function of temperature, and the In $ k $ is plotted as a function of $ 1 / T $ below. What is the activation energy of the chemical reaction in $ \mathrm{kJ} \mathrm{mol}^{-1} $. Give your answer correct to two decimal places and do not include the correct units $ \left(\mathrm{kJ} \mathrm{mol}^{-1}\right) $ in your answer.

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$ \lim _{x \rightarrow 0} \frac{e^{x \sin x}-1}{\sqrt{x^{2}+1}-1} $

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Refers to the process whereby organisms undergo various genetic and rphysical changes that pave the way for biological diversity.

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Which major tissue is described as avascular, and therefore does not contain blood vessels? Question 25 options: Muscle Connective Epithelium Nervous

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5. Show that the following are not vector spaces (Hint: start by listing two members of each set). (a) W = \begin{Bmatrix} \begin{pmatrix} a & 1\\ b & c \end{pmatrix} : a, b, c \in \mathbb{R} \end{Bmatrix} under the usual matrix operations. (b) V = \{(a, b, c) \mid x + y + z = 1\} under the usual operations in \mathbb{R}^3. (c) Q = \{a_0 + a_1x + a_2x^2 \mid a_0, a_1, a_2 \in \mathbb{R}^+\} (d) U = \{(a, b, c) \mid x^2 + y^2 + z^2 = 1\} under the usual operations in \mathbb{R}^3. (e) P = \{(x, y) \in \mathbb{R}^2 \mid x + 3y = 4 \text{ and } 2x - y = 3 \text{ and } 6x + 4y = 10\}.

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Consider the effects of inflation in an economy composed of only two people: Brian, a bean farmer, and Crystal, a rice farmer. Brian and Crystal both always consume equal amounts of rice and beans. In 2019 the price of beans was $1, and the price of rice was $4. Suppose that in 2020 the price of beans was $2 and the price of rice was $8.

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The circuit shown in the given figure is used in a television receiver. What is the total impedance of this circuit, where R = 240 ?? Please report your answer so the magnitude ww R ell 195 ? -j84 ? The total impedance of the circuit is Z = ?.

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3. 9-33 An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 27 $^\circ$C, and 750 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Taking into account the variation of specific heats with temperature, determine (a) the pressure and temperature at the end of the heat- addition process, (b) the network output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. Answers: (a) 3898 kPa, 1539 K, (b) 392.4 kJ/kg, (c) 52.3 percent, (d) 495 kPa 4. 9-35 Repeat Problem 3 using constant specific heats at room temperature.

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The equation of motion of MDOF system is given below: $\begin{bmatrix} m & 0 \ 0 & ml^2 \end{bmatrix} \begin{bmatrix} \ddot{x} \ \ddot{\theta} \end{bmatrix} + \begin{bmatrix} k & -kl \ -kl & 4kl^2 \end{bmatrix} \begin{bmatrix} x \ \theta \end{bmatrix} = \begin{bmatrix} 0 \ 0 \end{bmatrix}$ The parameters of the system are given as: m = 10kg l = 2m k = 4000 N/m $2b_u$ = 10 N/m $2b_\theta$ = 10 Nm Do the following: i) Make a modal analysis and calculate natural frequency and those modes shapes ii) If a step input with magnitude calculate the response of the system

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Problem 10-1: Calculating Returns Suppose a stock had an initial price of $58 per share, paid a dividend of $1.90 per share during the year, and had an ending share price of $68. Compute the percentage total return. (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Percentage return

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raquel p.