Numerade

Questions asked

BEST MATCH

Including the approximate overvolatge the reduction potential for hydrogen gas from water is about -1.0 V and the reduction potential for the oxidation of oxygen from water is about 1.4 V. 2 H2O (l) + 2 e- H2 (g) + 2 OH1- (aq) Eo = -0.83 V but with overvoltage about -1.0 V 2 H2O (l) O2 (g) + 4 H+ (aq) + 4 e- Eo = 1.23 V but with overvoltage about 1.4 V Which of the following cations would be more easily reduced than water? (Select all correct answers.) Group of answer choices sodium ion copper (II) ion magnesium ion gold (III) ion nickel (II) ion

View Answer

BEST MATCH

This answer was wrong. there is a solution and it is a right traingle.

View Answer

BEST MATCH

9 2 points Which of the following is NOT a valid variable name in Python? _2Copies 2Copies copies_2 if_2Copies

View Answer

BEST MATCH

Let $f: \mathbb{R} \to \mathbb{R}/\mathbb{Q}$ be a quotient map defined by $f(x) = [x] = \{x' \in \mathbb{R} \mid x - x' \in \mathbb{Q}\}$, where $\mathbb{R}$ is endowed with the usual topology. (a) Show that $f^{-1}(\{[0]\})$ is dense in $\mathbb{R}$. (b) Show that $f^{-1}(\{[z]\})$ is dense for any $z \in \mathbb{R} \setminus \mathbb{Q}$. (c) Show that $f^{-1}(A)$ is dense for any subset $A$ of $\mathbb{R}/\mathbb{Q}$. (Hint: Use (a) and (b)) (d) Explain why the quotient topology on $\mathbb{R}/\mathbb{Q}$ is the indiscrete topology.

View Answer

BEST MATCH

A good for which there is a direct relationship between the demand for the good and income is a(n) blank.)

View Answer

BEST MATCH

exon1 alu exon1 alu exon2 alu exon3 exon2 alu exon3 abc abc virus abc next gene abc previous gene abc next gene abc ab c d ef

View Answer

BEST MATCH

Exercise 1.2.9 In each of the following, find (if possible) conditions on a, b, and c such that the system has no solution, one solution, or infinitely many solutions. a. $3x + y - z = a$ $x - y + 2z = b$ $5x + 3y - 4z = c$ c. $-x + 3y + 2z = -8$ $x + z = 2$ $3x + 3y + az = b$ b. $2x + y - z = a$ $2y + 3z = b$ $x - z = c$ d. $x + ay = 0$ $y + bz = 0$ $z + cx = 0$

View Answer

BEST MATCH

Find the ac current and show it in phasor form and time dependent form. 39 U=500 U 50 20 10030 69 49

View Answer

BEST MATCH

Please try do one question on one page and write your name and ID on every page. Excise 10 MAS 3105 33. Let $D: P_3(x) \to P_3(x)$ be a linear transformation from $P_3(x)$ to $P_3(x)$ defined by $D: f \mapsto f + 2xf' - f''$. a.) Find the represent matrix of the transformation $D$ under standard basis of $P_3(x)$. b.) Find the $Ker(D)$. c.) Find the Range of $D$. $\begin{pmatrix} 1 & 2 \\ -2 & 1 \end{pmatrix}$ 34. Let $M_2$ be all the $2 \times 2$ matrices and $A =$ be a linear transformation from $M_2$ to $M_2$ defined by $L: B \mapsto AB$. a.) Find the represent matrix of the transformation $L$ under standard basis of $M_2$. b.) Find the $Ker(L)$. c.) Find the Range of $L$. 35. Let $P: \mathbb{R}^3 \to \mathbb{R}^2$ be the project operator, namely, $P: \begin{pmatrix} x_1 \\ x_2 \\ x_3 \end{pmatrix} \mapsto \begin{pmatrix} x_1 \\ x_2 \end{pmatrix}$. Find the represent matrix of the transformation $P$ under basis $\begin{pmatrix} 1 \\ 0 \\ 0 \end{pmatrix}, \begin{pmatrix} 1 \\ 1 \\ 0 \end{pmatrix}, \begin{pmatrix} 1 \\ 1 \\ 1 \end{pmatrix}$ of $\mathbb{R}^3$ and standard basis of $\mathbb{R}^2$.

View Answer

BEST MATCH

5. (20% total) For a second order system with transfer function $T(s) = \frac{\omega_n^2}{s^2 + 2\zeta\omega_n s + \omega_n^2}$, subjected to a unit step input, the desired dynamic response is specified in the following: 3% ? $M_p$ ? 10% $t_s$ ? 1.1 sec $t_r$ ? 0.1 sec where $M_p$ is the overshoot, $t_s$ is the settling time when the system oscillates within ±1% of the steady-state value, and $t_r$ is the rise time of 90% of the steady-state value, as defined in the lecture notes. Show in the s-plane, in Figure 4, the region within which the requirements of the dynamic response are met.

View Answer

jes-s m.