Numerade

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The ball B has a mass of 4 kg and is attached to the end of a rod whose mass can be neglected. The ball B is initially at rest at t=0s. If the shaft is subjected to a torque, which varies with time as shown in the graph, determine the time required (in seconds) for the ball to stop if Mmax = 7,8 Nm. Note: Please answer with 2 digits after the comma! M 1.5 m B M(Nm) Mmax 30 75 t=? t (s)

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What is the primary purpose of hedging in financial markets? Select one: a. To manage and reduce exposure to price risk b. To eliminate all financial risks c. To increase market volatility d. To maximize profits from price movements

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Uling: a) it law of thermodynamis b) Fourier law g heat transter by conduction berive the equation of energy for incompressible fluid flow.

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Let A = [[1,3,5],[0,1,4],[-1,-1,2]] and vec(b) = [[2],[1],[0]]. (a) To solve the system Avec(x) = vec(b), Christina performed the following Elementary Row Operations in the order given and obtained the following augmented matrix: [[1,0,0,-1],[0,1,0,1],[0,0,1,0]] 1. R3 -> R1 + R3 2. R3 -> -2R2 + R3 3. R3 -> -R3 4. R2 -> -4R3 + R2 5. R1 -> -5R3 + R1 6. R1 -> -3R2 + R1 For each of Christina's EROs, give the corresponding elementary matrix. Enumerate your elementary matrices in the order Christina applied them. (i.e. E1 corresponds to the first ERO.) (b) Let R = RREF(A). Write R as a product of A and the elementary matrices you found in part (a). (c) Use your product of elementary matrices in part (b) and an identity matrix to determine the inverse A^(-1). (d) Solve the system Avec(x) = vec(b) using the inverse A^(-1) you found in part (c).

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Problem 3. Evaluate the triple integral \begin{equation*} \int_0^3 \int_z^{z+2} \int_y^{y+z} (2x+1) dxdydz \end{equation*}

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Some neuroanatomists designate this structure as part of the frontal lobe while others believe it is a stand-alone lobe involved in consciousness and regulation of homeostasis.

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How would you prepare 2.5 L of 40% (m/v) glucose in water? Show your calculations in answering this question and state how many grams of glucose you need to prepare this solution. Also, state how many ml. of water you would use to prepare the solution or be more explicit in how you would add the water if you were preparing this solution in the laboratory.

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Texts: Is obesity a failure of personal responsibility alone, or does society bear some responsibility for creating this epidemic? Why or why not? Based on the video "A Big Fat Crisis," answer the following questions: 2. Do you think it is society's responsibility to "create conditions under which people can be healthy"? Why or why not? Once again, explain and support your answer. 3. Do you think the comparison of food consumption to alcohol consumption used in this video was valid? Why or why not? What point is the author trying to make here? Explain your answer. 4. Do you think legal restrictions should be imposed on how and where food is marketed, like we do with cigarettes? Why or why not? Provide specific examples here. 5. Going back and looking at your answer to question #1, has this video changed or modified your opinion? Why or why not? Explain. Make sure to provide evidence that you watched the video! 6. Based on what you learned here as well as your personal experience, why do you think eating is such a difficult behavior to control? Please explain. 7. What did you learn about your ability to think critically in completing this assignment?

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$1025 installation and/or maintenance services, in the event Appliance Center does not complete the service satisfactorily, the customer is only entitled to a refund of the portion of the fee that exceeds $800. Instructions (a) Assume that a customer purchases an oven with both installation and maintenance services for $1,000. Based on its experience, Appliance Center believes that it is probable that the installation of the equipment will be performed satisfactorily to the customer. Assume that the maintenance services are priced separately (i.e., the three components are distinct). Identify the separate performance obligations related to the Appliance Center revenue arrangement. (b) Indicate the amount of revenue that should be allocated to the oven, the installation, and to the maintenance contract. Oven $800 \quad (800 \div 1025) \times 1000 = 780 Installation $50 \quad (50 \div 1025) \times 1000 = 49 Maintenance $175 \quad (175 \div 1025) \times 1000 = 171 service reu (installation) \quad 780 unearned service rev (maintenance) \quad 171 Sales reverve \quad 780 #3. Sales with Returns On March 10, 2017, Steele Company sold to Barr Hardware 200 tool sets at a price of $50 each (cost $30 per set) with terms of n/60 f.o.b. shipping point. Steele allows Barr to return any

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7. It is given the vector field $D = \rho z \mathbf{a}_{\rho} + z \sin\phi \mathbf{a}_{\phi} - \rho \cos\phi \mathbf{a}_{z}$; a) Calculate the circulation of $D$ along the close path defining the open surface described by: $z = 2, 0 \le \rho \le 5, 0 \le \phi \le \frac{\pi}{4}$ b) Verify Stoke's theorem, considering $D$ and the open surface defined in (a)

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christopher j.