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christopher brown

christopher b.

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The best way to help a person make healthy choices is to: A Ridicule an individual until he/she makes the healthy choice. B Create a social and physical environment in which it is easy to make a healthy choice.

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Which of the following procedures (if any) will not result in a buffer solution? a. Mix 50.00 mL of 0.100 mol L -1 HClO(aq) (Ka = 4.0 \times 10 -8) with 25.00 mL of 0.100 mol L -1 NaOH. b. Mix 50.00 mL of 0.100 mol L -1 HClO(aq) (Ka = 4.0 \times 10 -8) with 25.00 mL of 0.100 mol L -1 ClO-(aq). c. Mix 50.00 mL of 0.100 mol L -1 C13H 16ClNO(aq) (ketamine, Kb = 3 \times 10-8 ) with 25.00 mL of 0.100 mol L -1 HCl(aq). d. Mix 50.00 mL of 0.100 mol L -1 HClO(aq) (Ka = 4.0 \times 10 -8) with 25.00 mL of 0.100 mol L -1 C13H 16ClNO(aq) (ketamine, Kb = 3 \times 10 -8). e. All of the above procedures will result in a buffer solution

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Question 1 (0.4 points)What is the function of a DNA cis-regulatory element?

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At what temperature will a sample of nitrogen monoxide gas occupy a volume of 3.40 L if the initial volume is 2.20 L and initial temperature is 35.0 °C? (The pressure remains constant).

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Q2B. i) Consider two marginal abatement cost curves (MAC) for a single firm. MAC? represents the current condition with old technology. MAC? refers to abatement costs that the firm would experience after engaging in a relatively expensive research and development (R&D) program to develop a new method of reducing emissions. Show how the price of permit works as an incentive for firm to improves it's technology and reduce it's emission? Explain. [show by measuring (e.g., addition or subtraction) areas under the curves]. [5 points] ii) Consider a simple model of emission control of an economy. Assume, the shape of marginal damages (MD), and marginal abatement cost (MAC) curves are typical. Show how you can introduce a two-part emission charge (taxes) system to reduce the burden of firm's tax payments. [show by measuring (e.g., addition or subtraction) areas under the curves]. [4 points]

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Drag the labels onto the diagram to identify the various types of neuroglia in the central and peripheral nervous systems. Ependymal cells Satellite cells Schwann cells Oligodendrocytes Microglia Astrocytes Produce and circulate cerebrospinal fluid in the CNS Provide structural and nutritional support for CNS neurons, and recycle neurotransmitters Myelinate CNS axons; provide structural framework Conduct phagocytosis in the CNS Support neuron cell bodies in PNS ganglia Produce myelin sheath around PNS axons

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Instructions: • Answer Two (2) question only. • Answers should be not more than two pages per question. • The deadline for submission is 8am on Tuesday, 9 November 2021. 1. Culture has been blamed for discriminatory gender practices in African societies. Over the years, there have been legal and policy reforms to address some harmful cultural practices. Explain the extent to which such reforms may have promoted gender equality in Africa. 2. Identify and discuss the ways in which social institutions create and reinforce unequal gender relations. To what extent have these changed overtime. 3. Describe how popular culture reenacts gender stereotypes. How do such stereotypes bias and endanger women? 4. How has heteronormativity been contested in recent Ghanaian society. To what extent do such contestations pay attention to gender relations.

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3. Suppose $A = \begin{bmatrix} a_{11} & a_{12} & a_{13} \ a_{21} & a_{22} & a_{23} \ a_{31} & a_{32} & a_{33} \end{bmatrix}$, and $det(A) = 7$. Let $B = \begin{bmatrix} -2a_{11} & -2a_{12} & -2a_{13} \ a_{31} & a_{32} & a_{33} \ 3a_{31} + 4a_{21} & 3a_{32} + 4a_{22} & 3a_{33} + 4a_{23} \end{bmatrix}$. Evaluate $det(B)$ if. Prove your answer, showing all steps, using what you know about properties of determinants.

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Two solutions to ty'' + y' = 0 are $y_1 = \ln(10t)$, $y_2 = \ln(2)$.\n a) Find the Wronskian.\n W = \n b) If the solution satisfying the initial conditions $y(3) = 0$, $y'(3) = 7$ is written as $y(t) = C_1 y_1 + C_2 y_2$\n then what are the values of $C_1$ and $C_2$\n $C_1 = $\n $C_2 = $

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Figure 6 illustrates a 5kg uniform slender rod which is pinned at point O. In this figure, $l$ = 1.5m and $F$ = 155N. Assume that the rod is rotated clockwise direction by applying a perpendicular external force of $F$ as illustrated in the figure. Find the angular velocity of the rod when it rotates 180°. Figure 6. Select one: O 12.37 rad/s

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