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Find the general solution of the partial differential equation $$xu_{xy} + u_y = 2xe^y$$

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A person pushes a 21.5-kg shopping cart at a constant velocity for a distance of 36.3 m on a flat horizontal surface. She pushes in a direction 31.7 \deg below the horizontal. A 48.0-N frictional force opposes the motion of the cart. (a) What is the magnitude of the force that the shopper exerts? Determine the work done by (b) the pushing force, (c) the frictional force, and (d) the gravitational force.

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A phenomenon called the ______ occurs when adult children return to the parental nest to live after college graduation while they get established professionally and financially and save enough money to move into their own apartments or homes. none of the above spacious nest empty nest cluttered nest

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The graph of f is shown for the interval [-2, 6]. For which interval is f' > 0 and f'' < 0? (-2, 0) (0, 2) (2, 4) (4, 6)

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Use the Gauss-Jordan method to solve the following system of equations. 5x - 3y + 4z = 7 5x + 2y - 2z = 11 20x - 7y + 10z = 32 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The solution is ( , , ), in the order x, y, z. (Simplify your answers.) B. There is an infinite number of solutions. The solution is ( , , z), where z is any real number. (Simplify your answers. Use integers or fractions for any numbers in the expressions.) C. There is no solution.

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You are auditing the financial report of Fresh Star Pty Limited (Fresh Star) for the year ended 30 June 2019. You have concluded that your team cannot rely on the internal controls of Fresh Star and the existence of accounts receivable is at risk. Questions: A. Identify and explain very briefly two substantive procedures you could use to test the existence assertion for accounts receivable. B. How would you answer change, if it was established that the internal controls of Fresh Star are operating efficiently? C. You just graduated from TUA and joined P&G, a big local audit firm, as a junior auditor. During the audit planning of a client, your audit senior told you that there are differences between the revenue/sales cycle and expenditure cycle. He asked you, with reference to assertions, which assertion is the auditor's primary concern in the test of balances for liabilities.

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Aristotle says, "[Those who are] thoroughly bad and impious . . . are at variance with themselves, and have appetites for some things and rational desires for others. . . . incontinent people . . . choose, instead of the things they themselves think good, things that are pleasant but hurtful; while others again, through cowardice and laziness, shrink from doing what they think best for themselves." 9:4 The Apostle Paul (in Romans 7:15-23 of the Bible) says, 15 I do not understand what I do. . . . 18 I have the desire to do what is good, but I cannot carry it out. . . . 19 I do not do the good I want to do, but the evil I do not want to do - this I keep on doing. . . . 22 For in my inner being I delight in God's law; 23 but I see another law at work in me, waging war against the law of my mind and making me a prisoner of the law of sin at work within me. We are sometimes "conflicted" between what we know we ought to do (by exercise of our will) and what we want to do (according to our desires). How do you think Aristotle's explanation of why we are conflicted in this way is the same or different from Paul's discussion in Romans 7? Is either one's explanation more correct? If so, why?

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How would you solve the following? An arithmetic sequence whose first term is 9 and 4th term is 24. Be specific. |

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What is the temperature coefficient of the diode's forward voltage ($v_D$) with respect to changes in temperature at a constant 1 mA current? Assumptions: $\bullet$ silicon pn junction $\bullet$ $\eta$ = 1.8 $\bullet$ at T=300 K, $I_S$ = 1 nA $\bullet$ $i_D$ is held constant at 1 mA $\bullet$ use equation (3) to include the temperature-dependence of $I_S$ $I_S(T) = C \cdot T^4 \exp\left(\frac{-E_G}{\eta k_B T}\right)$ (3) First find the forward voltage, $v_D$ under these conditions. (consider your results from the first question!) $\bullet$ If shown in a plot, this relationship would have $v_D$ on the vertical axis and temperature (K) on the horizontal axis. $\bullet$ The slope is not a constant. We are only interested in the point-slope at 300 K, or the first Taylor series coefficient. $\bullet$ Consider whether to use equation (1) or (2) for the diode current/voltage relationship---your choice. Don't forget that $V_T$ also changes with temperature--- This will be a negative, single-digit number with units mV/°C, report your final result to two significant digits.

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Question 1: While skiing and you take refuge in a tent, you are thirsty. But suppose you are overtaken by a blizzard and have no choice but to eat a few handfuls of snow (say 400 g) as you forgot to bring liquid water. You have two options for quenching your thirst: immediately heating the snow to body temperature or setting up your propane stove, melting the snow before drinking it. You recall that the survival guide you leafed through at the hotel said something about not eating snow, but you cannot remember why. After all, it's just frozen water. To understand the guide's recommendations, calculate the amount of heat that your body will have to supply to bring 400 g of snow at -18Â°C to your body's internal temperature of 37Â°C. The specific heats of liquid water and ice are 4.18 J/(gÂ°C) and 2.09 J/(gÂ°C), respectively. The enthalpy of fusion of ice is 6.01 kJ/mol. Question 2: NO2 + N2O4 â†’ N2O7. Consider the reaction: predict whether the reaction is endothermic or exothermic. Based on these structures, draw Lewis structures for each of NO2 and N2O4 and explain your reasoning. Endothermic because N2O4 has stronger bonds than NO2. Exothermic because NO2 has stronger bonds than N2O4.

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james c.