Numerade

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choose any Industrial process at a gold mine with crushing, milling, CIP, elution, smelting, CIS and tailings dam. Pick any process variable you want to control. With the aid of a PID for that process explain how a control system can be implored to control the variable. Use the information below to tackle the issue:i.Control objective(s)? ii. Input variables and Output variables?iii. Constraints and Operating characteristics?iv. Safety, environmental and economic considerations?Use a Feedback (FB) control strategy to show how to achieve the control objective.

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. In this exercise you will derive the well-known sigmoid expression for a Bernoulli distributed (binary) problem. The probability of the “positive” event occurring is p. The probability of the “negative” event occurring is q = 1 − p. (a) What are the odds o of the “positive” event occurring? Please express the result using p only.

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16. On the following titration curve, a) label all that apply: axes labels, the equivalence point, buffer region, equivalence volume, half equivalence volume, pH at equivalence, midpoint and pKa b) identify the substances used in the titration as a strong acid, strong base, weak acid, weak base c) indicate the direction of titration by indicating what substance is located in the buret. (only one will curve will be on the test.)

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QUESTION 2 For the reaction 5A + 5B \rightarrow 2C + 2D, at a particular instant in time, the rate of the reaction is 0.0223 M/s. What is the rate of change of A? a. -0.0223 M/s b. 0.112 M/s c. -0.112 M/s d. 0.00446 M/s e. -0.00446 M/s

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Homeostatic sleep drive, the drive for sleep the longer one is awake, is thought to be caused by

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What is the equilibrium price for snow boots? Hint: enter your answer as a number only with no $ sign Example: if the answer is $10,000, enter 10,000

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1) Find the derivative of each. Simplify your answer (no negative exponents, no square roots in the denominator. [8] a) $f(x) = (3x^2 - 5)(1 - x^3)^5$ b) $f(x) = \sqrt[3]{\frac{5+x}{2x-4}}$ c) $f(x) = \sin[\cos(x^2)]$ d) $x^2y + y^2x = 1$

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Problem 9-A student reacts 12.2g of MnO2 with HCl according to the balanced equation below: MnO2(s) + 4HCl(aq) -> MnCl2(aq) + Cl2(g) + H2O(l) The Cl2(g) produced was collected. Its pressure was measured to be 0.971atm at a temperature of 78.2°C. a) Assuming the gas acts ideally, determine the volume of Cl2(g) produced if the theoretical yield of Cl2 was obtained (8 points). mass MnO2 = 12.2g The moles of MnO2 gives the same moles of Cl2 in the reaction 1:1 0.14, 0.14 moles Cl2 = 0.14 P = 0.971 atm T = 78.2°C = 351.2K R = 0.0821L atm/mol K (0.14 * 0.0821 * 351.2) / 0.971 Volume of Cl2 produced = 4.16L With no easy way to measure the remaining volume, the student used a known gas law to calculate it after determining that there were only 0.04 moles of Cl2 left after the escape. d) Assuming the pressure and temperature was kept constant, calculate the new volume of Cl2 (4 points). (Hint: you calculated the initial, aka "1", values in your attempt of 9a). e) Provide a graphical representation of the gas law the student used (4 points).

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A machine that manufactures automobile parts produces defective parts 11% of the time. If 6 parts produced by this machine are randomly selected, what is the probability that at least 3 of the parts are defective? Carry your intermediate computations to at least four decimal places, and round your answer to two decimal places. (If necessary, consult a list of formulas.)

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A 256-Mbit DRAM chip fabricated in 0.2-micrometer CMOS technology requires 1 micrometer$^2$ per cell. If the memory array is square, estimate its dimensions. If the sense amplifiers and decoders add 25% to the chip area estimate the dimensions of resulting chip. Select one: Oa. 16.384 mm x 16.384 mm, 18.317 mm x 18.317 mm Ob. None of these Oc. 2.048 mm x 2.048 mm, 2.289 mm x 2.289 mm Od. 4.096 mm x 4.096mm, 4.579 mm x 4.579 mm O e. 8.192 mm x 8.192 mm, 9.159 mm x 9.159 mm

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james b.