Numerade

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3. Blood is in the _______ fluid. a. Intracellular b. Interstitial c. Cerebrospinal d. Extracellular

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$ \begin{array}{l}3 x+2 y+z=-4 \\ -4 x-3 y+5 z=6 \\ 6 x+4 y+2 z=-3\end{array} $

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4. Consider the three-part international trade graph in question 2 where there are two countries, and we have no barriers to trade (countries can trade if they want to). Under what conditions will there be no imports or exports (i.e. nothing transacted in the world market). Illustrate this case.

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Two lumps of clay, each of rest mass m, collide head on when travelling at a speed 0.6c. They stick together after collision. (i) What is the speed of the composite lump? (05 points) (ii) What is the mass of the composite lump in terms of m? (15 points) (iii) What is the change in the internal energy? Is it increased or decreased?

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Determine the number of spanning trees T of K_(9) in each of the following scenarios: (a) T has 5 and 8 as leaves. (b) T does not have 5 as a leaf. Determine the number of spanning trees T of Kg in each of the following scenarios (a) T has 5 and 8 as leaves. (b) T does not have 5 as a leaf.

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A particle starts at the point (-4, 0), moves along the x-axis to (4, 0), and then along the semicircle $y = \sqrt{16 - x^2}$ to the starting point. Use Green's theorem to find the work done on this particle by the following force field. F(x, y) = \langle 2x, x^3 + 3xy^2 \rangle

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The head loss, h<sub>L</sub>, in units of length, over a 90° standard elbow placed in a DN 100 Schedule 40 pipe that transports 2000 liters / minute of water at 40 degree is most likely: 0.40 m 0.53 m 2.15 m 1.34 m 0.10 m 0.33 m

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3. The gas phase reaction 2A \longrightarrow B occurs at the surface of a catalyst particle. You can assume that gas A diffuses through stagnant film of gas surrounding the catalyst particle and at the particle surface the reaction takes place instantaneously. Then, gas B diffuses back through the stagnant film into the bulk. Obtain the concentration profile of A.

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1. Consider 5 moles of oxygen expanded isothermally at 25°C from 15L to 32L. a) Calculate work in a reversible isothermal expansion b) Calculate work in irreversible isothermal expansion at P = Pr.

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Question 12 (3 points) If the marginal product of an input is falling, then A) marginal cost is rising. B) average fixed cost is constant. C) average total cost is constant. D) marginal cost is falling.

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barbara l.