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joshua go-i

joshua g.

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\int_1 (dx)/(e^(x+3)+e^(5-x))

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Question 16 How many official recessions has the US been in since 1948? 24 34 3 12 1 pts

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Consider matrix A. A=[−385−123] What matrix results from −6·A? Enter your answer by filling in the boxes.

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How do we accurately distinguish between behaviors driven by individual and group selection in natural populations?

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Complete the sentence. A relative price is ____. A. always greater than a money price B. the ratio of the price paid for a good in Canada to the price paid for a similar good in another country C. what you get paid for babysitting your cousin D. an opportunity cost

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Which of the following statements is FALSE? A) Cells can pass from the G1 state to the S state only when there are sufficient nutrients to complete an entire cell cycle. B) Both the presence of a bound cyclin AND its phosphorylation state determine whether a given Cdk protein will be enzymatically active. C) Intracellular cyclin levels vary throughout the cell cycle. D) Apoptosis is mediated by special intracellular Cdk's, one of which catalyzes the cleavage of nuclear lamins. E) Developing neurons compete for limited amounts of survival factors.

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A stationary electron is located in a uniform magnetic field of 1.45 T. Find the magnitude of the magnetic force acting on the electron

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A company needs to store a set of n programs, P1, P2, ..., Pn, on a central computer. Each program Pi takes si kilobytes of storage, and the capacity of the computer disk is D kilobytes, with D < ∑𝑛 𝑠. Give a polynomial-time algorithm that the company can use in order to maximize the number of programs stored on the disk. Note: to prove that your greedy strategy yields the optimal solution, you have to prove that the problem has the greedy-choice property.

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Note: In all questions consider density of water to be 1000 kg/m³ and its dynamic viscosity of 1.138 × 10?³ kg/m·s. Problem 1: a- Water at 25.0 C is flowing steadily in a 1.0 km-long and 45-cm-diameter horizontal pipe made of stainless steel at a rate of 5.6 L/s. Determine (a) the pressure drop, (b) the head loss, and (c) the pumping power requirement to overcome this pressure drop. b- Water is to be transported in a 5-cm-diamater, 30-m-long circular pipe. The roughness of the pipe is 0.22 mm. If the Pressure drop in the pipe is not to exceed 19 kPa, what is the maximum flow rate of water? c- The pressure drop for a given flow is determined to be 100 Pa. For the same flow rate, if we reduce the diameter of the pipe by half, what is the new pressure drop? d- If fittings in 3.0 m long 10 cm diameter plastic pipe are 90° mitre elbows and a fully open globe vale, if water flows at 10 °C flows at a velocity of 5.4 m/s, estimate the total head loss and pressure drop across the pipe.

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6. In the analysis of an ore sample for Ni using an acidic dichromate solution, 0.04256 liters of dichromate titrant were required. If the sample contained exactly 2.5000 gm of ore, the final oxidation state of the Ni was +3, and the ore contained exactly 41.74% Ni, what was the molarity of the dichromate titrant? The reaction products include $Cr^{3+}$ and $H_2O$ in the net ionic equation.

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