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Design a silo to store a powder. The results of the stress tests are shown below. It is known that the density of the powder is 900 kg/m3 and that the silo has to be made of Aluminium. The angle of friction between the powder and aluminium is 10°. Show i. The hopper angle and minimum opening at the bottom to asure mass flow. ii. The hight of the silo necessary to store 200 tons of the powder. (20) Volume van ‘n koniese vorm / Volume of a cone:

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True or False: Human behavior is simple, which makes it easy to determine the true causality of human actions. O True O False

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Wilson Company gathered the following reconciling information in preparing its August bank reconciliation: Cash balance per books, 8/31 Deposits in transit Notes receivable and interest collected by bank Bank charge for check printing Outstanding checks NSF check $3,500 150 850 20 2,000 170 The adjusted cash balance per books on August 31 is ? $4,160. ? $4,010. ? $2,310. ? $2,460.

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One hundred college seniors attending a career fair at a university were categorized according to gender and according to primary career motivation. The following table shows the results. If one of these students is to be selected at random, find the probability that the student selected is motivated primarily by creativity. Primary Career Motivation Sense of Allowed to be Money Creative Giving to Society Total Male 18 20 15 53 Female 15 18 14 47 Total 33 38 29 100 The probability that a student selected is motivated primarily by creativity is (Simplify your answer. Type an integer or a fraction.)

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Which of the following statements is true regarding the effect of substance abuse by pregnant mothers? Multiple Choice Prenatal marijuana exposure is related to higher intelligence in children. Maternal smoking is linked to enhanced ovarian functioning in female offspring. Cocaine exposure during prenatal development is linked to low blood pressure at nine years of age. Infants whose mothers are addicted to heroin show several behavioral difficulties at birth, including withd

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A student was attempting a kinetic study of a particular reaction of compound XyZ, and determined the following initial rates information at 298K. Based on the information given, write the rate law: trial [XyZ] (M) initial rate (M/sec) 1 0.25 $3.0 \times 10^{-3}$ 2 0.5 $6.0 \times 10^{-3}$ 3 0.6 $7.2 \times 10^{-3}$ Suppose the student had set up the reaction to monitor the concentration of XyZ with respect to time. What quantities would have yielded a straight line in this case? What would the value of the slope be? Explain. What is the half-life of the reaction above, if you start with a concentration of 1.0M XyZ? What about if you start with a concentration of 0.5M? Explain.

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Group Statistics Std. Error Do You Shop at Target? N Mean Std. Deviation Mean 26 3.0000 1.01980 .20000 4 1.7500 .50000 .25000 What is your age range Yes No Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means 95% Confidence Interval of the Difference What is your age range Equal variances assumed Equal variances not assumed F Sig. t df One-Sided p Two-Sided p Mean Difference Std. Error Difference Lower Upper 1.396 .247 2.381 28 .012 .024 1.25000 .52496 .17467 2.32533 3.904 7.691 .002 .005 1.25000 .32016 .50652 1.99348 Independent Samples Effect Sizes 95% Confidence Interval Standardizer Point Estimate Lower Upper What is your age range Cohen's d .97742 1.279 .164 2.373 Hedges' correction 1.00462 1.244 .160 2.308 Glass's delta .50000 2.500 .321 4.643

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Jim is in the 32\% marginal income tax rate, and he would like to invest in State of Louisiana bonds. If similar taxable investments yield 9\%, how much must Jim earn to make this a worthwhile investment?

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Question 26 All network elements (i.e., hosts and routers) run all layers of the protocol stack.

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May. 15, 2019 PROBLEM 1: (22%) 2 Name K ? 0.5r No slip Jc =\frac{7}{24}mr^2 Free body diagram: x Kx (x,0) 0.5r? mg Fy 0 (a) An eccentric disk is rotating on the ground as shown in the figure above. The disk has radius r. The distance between the center of mass of the disk (denoted as C) to its geometric center (denoted as O) is $\frac{1}{2}$r. The angle of rotation of the disk is $\theta$ and the displacement at point O is x. The disk has mass m. The moment of inertia with respect to its center of mass is $J_c = \frac{7}{24}mr^2$. A spring force $K_x$ is applied to point O. Follow the following procedure to derive the EOM of this dynamic system: (15%) Step 1 (elemental equations): (11%) (Easy) Euler equation of rotation around C: $J_c\ddot{\theta} = mr^2\ddot{\theta}$= Newton's second law for translational motion at the center of mass C: $\begin{cases}mx_c =\\my_c =\end{cases}$ Kinematic constraints: $x_c = x - 0.5 \cdot r \cdot sin \theta$ $\downarrow$ $y_c = -0.5 \cdot r \cdot cos \theta$ $\downarrow$ $x = r \cdot \theta$ $\downarrow$ $\dot{x}_c =$ $\dot{y}_c =$ p 2 (eliminate the intermediate variables and derive the EOM in terms of $\theta$): (4%) (Har

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ruben t.