Questions asked
5. Figure below shows that the members of the truss have a cross-section area of 2.3 $in^2$ and Young's modulus $E=10^7$ psi. When FEA approach is used to determine the deflection of each joint (numbered in red color 1, 2, 3), then the local stiffness matrix of element 2 (numbered in black color 2) in the figure will be. A) $\begin{bmatrix} 0.25 & 0.433 & -0.25 & -0.433 \\ 0.433 & 0.75 & -0.433 & -0.75 \\ -0.25 & -0.433 & 0.25 & 0.433 \\ -0.433 & -0.75 & 0.433 & 0.75 \end{bmatrix}$ B) $\begin{bmatrix} 0.25 & -0.433 & -0.25 & 0.433 \\ -0.433 & 0.75 & 0.433 & -0.75 \\ -0.25 & 0.433 & 0.25 & -0.433 \\ 0.433 & -0.75 & -0.433 & 0.75 \end{bmatrix}$ C) $\begin{bmatrix} -0.25 & 0.433 & -0.25 & 0.433 \\ 0.433 & 0.75 & 0.433 & -0.75 \\ -0.25 & 0.433 & -0.25 & -0.433 \\ 0.433 & -0.75 & -0.433 & 0.75 \end{bmatrix}$ D) $\begin{bmatrix} 0.25 & -0.433 & -0.25 & 0.433 \\ -0.433 & -0.75 & 0.433 & -0.75 \\ -0.25 & 0.433 & -0.25 & 0.433 \\ 0.433 & -0.75 & 0.433 & 0.75 \end{bmatrix}$
Consider the following equation: rwacc = rE + rD(1 - Ï„c) the term rD(1 - Ï„c) in this equation is: Question 2 options: the after-tax required rate of return on debt. the required rate of return on debt. the dollar amount of equity. the required rate of return on equity.
What is the most prevalent type of communication in an organization? Public speaking Oral Social Nonverbal
Who establishes incident response procedures that include network forensics? Group of answer choices Each organization NSA NIST Forensics International (FI)
In this series, identify the number that comes next. 7, 9, 11, 10, 6, 8, 10, 9 3 7 8 5 11
us page XBO 40075 - ECON204 - W - MACROECONOMICS 15 The Fed can decrease the federal funds rate by Oa. buying government bonds. Ob. selling government bonds. Oc. simply announcing a lower rate because the Fed has direct control of this interest rate. Od. changing the money multiplier.
1. The position of a particle moving along a straight line is given by $s(t) = t^3 - 6t^2 + 9t$ where $t$ is measured in seconds and $s(t)$ in meters. Suppose $t \ge 0$. For parts (iii) and (iv), answer using interval notation: (i) Find the velocity, $v(t)$, of the particle at any time $t$. (ii) For which $t$ values is the particle at rest? (iii) Find the interval(s) for which the velocity is positive. Also find the interval(s) for which velocity is negative. (iv) Find the interval(s) for which the particle is speeding up.
Evaluate \int \frac{-3x - 17}{(4x + 1)(x - 3)} dx
Let f: A → B and g: B → C be two 1-1 functions. Show that g ◦ f is 1-1.
Let R be the region bounded by the following curves. Use the shell method to find the volume of the solid generated when R is revolved about the y-axis.\ y = 7(1+7x^2)^{-1}, y = 0, x = 0, and x = 2 Set up the integral that gives the volume of the solid using the shell method. Use increasing limits of integration. Select the correct choice and fill in the answer boxes to complete your choice.\ (Type exact answers.) $\int_{\boxed{}}^{\boxed{}} \boxed{} dy$ $\int_{\boxed{}}^{\boxed{}} \boxed{} dx$