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david patterson

david p.

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On a hike up Mount Kilimanjaro, Ernest Hemingway might have measured that the atmospheric pressure was 467 mmHg. What is the pressure in terms of the unit atm? Group of answer choices 0.614 atm 1.00 atm 1.63 atm 467 atm 760 atm 355000 atm

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three resistors are connected in series and a 0.65 A current passes through them. what are (a) the equivalant resistance and (b) the potential difference

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A high protein diet has a potential to put strain on liver and kidney function, which can lead to dehydration, cause electrolyte and balance, glycogen, depletion and loss of what type of tissue?

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Order: IV Nitroglycerin 40-100 mcg/min. The solution contains 40 mg of nitroglycerin in 250 mL of D5W. What is the maximum flow rate in mL/h that the electronic pump can be set at following this order?

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3. Entropy (10%) (1). What is the definition of entropy? (2). What is the physical meaning of entropy?

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Microbiology: Riboswitches & Attenuation Part 1: A: Based on the trp operon structure, what effect do you predict trpA mutations have on: 1. Tryptophan synthesis? 2. Trp operon mRNA expression? B: A bacteriophage lambda mutant is found that is able to lysogenize its E. coli host at 30°C but not at 42°C. What genes may be a temperature-sensitive (ts) mutant in this phage? C: In the trp attenuation system, what phenotype would you observe if you have a mutant in RNA polymerase that decreases transcription pausing? Explain.

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Factor $f(x) = 2x^3 + 7x^2 - 87x + 108$ into linear factors given that $-9$ is a zero of $f(x)$.\\ $f(x) = 2x^3 + 7x^2 - 87x + 108 = $\\ (Factor completely.)

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A beam supported by a pin support at A and roller support at C is loaded with 80 kN force at B and a 40 kN.m moment at D. It has an unsymmetric box cross section as shown. At 1.2 meter away from point A and at the height of 6 cm from the bottom of the cross section calculate; a) the bending (normal) stress b) the shear stress

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A steel pipe of mass $m$ is connected to a pulley system by a massless, unstretchable rope. The rope moves without slipping over two pulleys as shown. The left pulley has radius $R_1$ and moment of inertia $I_1$, the right pulley has radius $R_2$ and moment of inertia $I_2$. If a force of magnitude $F$ is applied to the other end of the rope so that the pipe accelerates up, what is its acceleration, and what is the tension in the rope between the two pulleys?

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A 3-phase, Y-connected synchronous generator with a synchronous reactance of 4 Ohms/phase is connected to an infinite bus whose voltage is 6.6kV. The maximum output of the machine is 16MW. Compute the internally generated voltage Eg at the maximum possible power output condition. Ans-9.7kV The power output is gradually reduced to 10MW without changing the field current. Find the new current, power factor, and power angle delta. Compute the reactive power generated by the machine. Ans-delta=38.7 deg; 886 at -9.1 deg Amps; 1.58 MVAR If the machine is required to generate no reactive power (PF=1) while supplying the same real power by changing the field current, find the new internally generated voltage and corresponding power angle delta. Ans-8.96 kV at 42.6 deg. If the machine is now required to run a s synchronous motor, calculate the power output, reactive power, current and power factor when the power angle is 30 degrees. Ans- 668A; power angle 14.5 deg; 7.39 MW; 1.91 MVAR

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