Questions asked
Buyers and sellers conduct transactions where supply and demand dynamics operate. What does this statement describe?
By-products of cellular respiration include Group of answer choices carbon dioxide and water. carbon dioxide and oxygen. NADH and ATP. oxygen and heat.
Suppose $K(x) = f(g(x)) + x^2 - h(x)$. You are given that $K'(1) = 10$, $g(1) = 2$, $g'(1) = 4$, $f'(2) = -2$, and $f'(4) = -4$. Find $h'(1)$.
Inverse z-transform for both functions calculate. (i) $X_1(z) = \frac{z}{z^2 - 3z + 2}$; (ii) $X_2(z) = \frac{1}{(z - 0.1)(z - 0.5)(z + 0.2)}$
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Use a 4-variable Karnaugh Map to find a minimal expression for f= \sum m(1,3,6,7,9,13,15) \\ + \sum d(0,12,14). Circle the essential prime implicants in your final expression for f. f=
2. (40 points) We have reviewed 14.87 (on Monday) where a rod is connected to a spring. Let's change their positions, so that the spring is vertical. One end of the horizontal rod is attached to the end of the spring, as shown in the figure. If the rod oscillates up and down slightly (small displacement), is this a harmonic oscillation? If so, what is the angular frequency and period of oscillation? If not, explain the reason.
The diffusion coefficients for Ni in Fe are given at two temperatures: \begin{tabular}{|c|c|} \hline $T$ (K) & $D$ (m$^2$/s) \\ \hline 1473 & $2.2 \times 10^{-15}$ \\ \hline 1673 & $4.8 \times 10^{-14}$ \\ \hline \end{tabular} (a) Determine the values of $D_0$ and the activation energy $Q_d$ in eV/atom. (3 points) (b) Determine D at 1300 $^\circ$C. (2 points)
Show that it is not possible to track velocity, given a step input, for the given feedback system, where the transfer function that relates torque to angular position is $G(s) = \frac{\Theta(s)}{T(s)} = \frac{5}{(s+10)}$
1. (2 pts.) Consider the sudden contraction with a U-tube manometer connected to each side. When flow starts in the direction as show, how will the manometer fluid change, if at all. Why does it, or doesn't it change? Include a sketch of the manometer fluid after flow starts with an explanation and any assumptions that you are making. initial state before flow starts final state after flow starts
