Numerade

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How many fingers would an individual use if they were okay with an idea? Group of answer choices One Two Three Four

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6) Which of the following describes the directionality seen in nucleic acids? A) most polynucleotides have an unreacted 5¢ hydroxyl group B) all polynucleotides have an unreacted 2¢ hydroxyl group C) most polynucleotides have a phosphate group on the 5¢ end D) sequences of polynucleotides are generally written from 3¢ on the left to 5¢ on the right E) none of the above

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A combined cycle power plant is designed with four 150 MW gas turbines and one 350 MW steam turbine. The exhaust gases from each gas turbine pass through a supplementary firing chamber. Then the exhaust gases pass through a waste heat boiler to generate superheated steam. The generated superheated steam from the four waste heat boilers is supplied to the steam turbine. The detailed given inputs are shown in the attached figure. For the states of the steam cycle, use the following properties: For the gas turbine plants and the steam plant, mechanical and generator efficiencies of 0.99 and 0.98, respectively. Assume for air (Cp.a = 1.003 kJ/kg.K and γa = 1.4) and for gases (Cp.g = 1.15 kJ/kg.K and γg = 1.33). Calculate: a. The air mass flow rate to each gas turbine plant. b. The fuel mass flow rate required in each gas-turbine cycle and in each of the supplementary firing. c. The generated steam mass flow rate by the heat recovery boiler. d. The gas stack temperature after the waste heat boiler. e. The efficiencies of gas, steam, and combined cycles.

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Find the reference number $ \bar{t} $ for $ t=\frac{-5 \pi}{4} $

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Consider the two-country model discussed in class. Suppose that yA,1 > ?A,2 and that the two countries are in steady state. Suppose now that Country 1 raises the fraction of the labor force that is doing R&D. This change will create ____ in the level of output per worker and a(n) ____ in the growth rate of productivity as well as output per worker in _____ ? a drop; decrease; country 1 ? a drop; increase; country 1 ? an increase; increase; country 1 ? a drop; increase; both countries

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Colin is a soldier injured in battle. Pam injured her back while doing a home improvement project. Neil is a professional athlete who is injured during a game. Leslie is giving birth to her first child. Who is likely to experience the most pain as a result of their injury? 1. Colin 2. Pam 3. Neil 4. Leslie

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A circular ring of inner radius a and outer radius b is loaded as shown. The Airy's stress function for this problem has the form: $\Phi(r,\theta) = \left(Ar^2 + Br^4 + \frac{C}{r^2} + D\right)\cos2\theta + Fr^2 + H\log r$ where A,..., H are constants to be determined using appropriate boundary conditions. (a) Obtain expressions for stresses $\sigma_r, \sigma_{\theta}, \sigma_{r\theta}$. (b) List all suitable boundary conditions for the problem, (c) Solve for constants A,..., H. (Using an equation solver is acceptable.)

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Today a new 6-Mega Watt(MW) solar panel farm is constructed at a cost of $14 million and the cost index is 100. What is the estimated cost for a smaller 3-Mega Watt(MW) solar farm four years from today, knowing that the new cost index is 200 and the cost capacity factor (X) is 0.15? a. $15.5 million b. $19.8 million c. $25.2 million d. $28 million

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For each of the state of stress shown below determine (a) Draw a complete Mohr's Circle for the given state of stress of the element (showing current normal stress direction, points of the stress on both of the X and Y faces, $\alpha$, 2$\phi$, and 2$\phi_\alpha$ angles) (b) the principal stresses, (c) the maximum in-plane shear stress and average normal stress at the point (d) the orientation of the element in each case. Problem-1 80 MPa Problem-2 I 8 ksi 50 MPa 6 ksi 12 ksi

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3 P-S/R The graph shows the conversion rate between cubic centimetres and litres. a If the axes were labelled continuously to 0, would the graph go through the origin? How do you know? b Use the graph to work out whether 7 litres is a greater volume than 702 cm³.

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nathan g.