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alejandra cerezo

alejandra c.

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The primary function of the circulatory system is... A. To absorb nutrients and waste for cells B. Transport nutrients and waste for cells C. To make blood D. All of the above E. None of the above

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Which two elements entering ecosystems are principally derived from the atmosphere?

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Acceleration is defined as: change of velocity Select one: True False

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(b) Show how the viscosity units of Pa's is related to the fundamental units in the SI system (kg, m, and s). Derive the conversion factor for Pas to cp (viz., centipoise). (c) Look up viscosity and the kinematic viscosity of water and air. Be sure to cite your sources. Compare the magnitudes and qualitatively describe how these properties affect everyday phenomena. Give examples.

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Question 1: Compare between adder and Subtractor circuit by drawing the truth table, equation and the logic diagrams.

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Prompt There are several views about what intelligence is. Briefly explain Charles Spearman's theory of general intelligence, Howard Gardner's theory of multiple intelligences, and Robert Sternberg's theory of three intelligences.

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Figure shows a disk with moment of inertia $J = 0.5 \text{ kg-m}^2$ that is initially rotating at an angular velocity $\dot{\theta}_0 = 40 \text{ rad/s}$. A flexible shaft with torsional spring constant $k = 65 \text{ N-m/rad}$ connected to the disk. The disk is subjected to friction, which is modeled by linear viscous friction torque $b\dot{\theta}$, with friction coefficient $b = 1.0 \text{ N-m-s/rad}$. The input torque in the clockwise direction is a step function $T_{in}(t) = 3.0U(t) \text{ N-m}$. PART-A (8 points) a) (2 points) Show that the I/O equation of the system is; $J\ddot{\theta} + b\dot{\theta} + k\theta = F_a(t)$ b) (6 points) Sketch the block diagram of the system using the integrator-block method to obtain the dynamic response and plot the angular position $\theta(t)$ (in rad) and angular velocity $\dot{\theta}(t)$ (in rad/s). Label all blocks and signal-path variables.

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5) What number is equivalent to (3 x 100) + (9 x 1/10) + (2 x 1/100)? * 3.92 30.92 300.92 300.29

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2)3-5(2x+2)=3 Bài 3. Ba ng??i cùng làm m?t công vi?c. N?u làm riêng, ng??i th? nh?t m?t 5 gi?, ng??i th? hai m?t 10 gi? và ng??i th? ba m?t 15 gi?. H?i ba ng??i cùng làm thì hoàn thành công vi?c trong bao lâu? Bài 4. Ng??i ta b?m n??c vào b?. N?u 2 vòi cùng ch?y thì sau 2 gi? s? ??y b?, n?u v?i 1 ch?y m?t mình thì sau 3 gi? s? ??y b?. H?i vòi 2 ch?y m?t mình thì m?t bao lâu s? ??y b?? 5 Bà 5. Hi?n nay khoàng di?n tích ??t c?a Vi?t Nam ???c che ph? b?i r?ng. Cô l r?ng là r?ng t? nhiên, còn l?i là r?ng tr?ng. H?i. a) Di?n tích r?ng t? nhiên b?ng m?y ph?n di?n tích r?ng c?a Vi?t Nam? b) Di?n tích r?ng t? nhiên b?ng m?y ph?n di?n tích r?ng tr?ng? 3 10 di?n tích 17 Lâm bài t?t

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5) What is the standard form of eighty-one thousand two hundred and seven? a) 81,277 b) 82,177 c) 81,727 d) 81

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