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alexis watson

alexis w.

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why is tidal volume of male is higher than female after exercise

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5. [-/1 Points] DETAILS SPRECALC7 3.3.013. Two polynomials $P$ and $D$ are given. Use either synthetic or long division to divide $P(x)$ by $D(x)$, and express $P$ in the form $P(x) = D(x) \cdot Q(x) + R(x)$. $P(x) = 10x^4 + 4x^3 + 7x^2$, $D(x) = 2x^2 + 1$ P(x) =

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Question 10 5 pts A point P has Cartesian coordinates (-2,2). Which of the following represents the polar coordinates $(r, \theta)$ of P? $\left(-2\sqrt{2}, \frac{\pi}{4}\right)$ $\left(-2\sqrt{2}, -\frac{\pi}{4}\right)$ $\left(2\sqrt{2}, -\frac{3\pi}{4}\right)$ $\left(2\sqrt{2}, -\frac{\pi}{4}\right)$ $\left(2\sqrt{2}, \frac{5\pi}{4}\right)$

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2. The position vector of a particle is given as \( \vec{r} = at \hat{i} + (bt - \frac{1}{2}ct^2) \hat{j} \) where $a$, $b$, and $c$ are positive constants. (25pts) a) Find the unit tangent vector at time $t$. b) Find the angle between the particle's velocity and acceleration vectors at time $t$.

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Name: You need to show the procedures how the results are obtained. Express your final answers in 3 significant figures. 5 1. Refer to the following amplifier. Given: $V_{DD} = \frac{5}{V}$, $V_{tp} = 0.4$ V, $V_{tn} = 0.5$ V, $\mu_p C_{ox}$ $= 80 \mu A/V^2$, $\mu_n C_{ox} = 120 \mu A/V^2$, L = 32 nm, W = 0.4 $\mu m$, $V'_A p = 40$ V/$\mu m$, $V'_A n = 60$ V/$\mu m$. (50 points) (a) If $I_D = 0.1$ mA is required, calculate the bias voltage needed for each transistor, i.e., the DC voltage on each gate. (20 points) (b) Calculate the output resistance, $R_o$. (15 points) (c) If $v_i = 10$ mV, find $v_o$. (15 points) $V_{DD}$ $V_{G40}$ $Q_4$ $V_{G30}$ $Q_3$ $V_{G20}$ $Q_2$ $v_o$ $v_i$ $Q_1$ 1

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4. [1 point] For a one-dimensional system, the potential energy function is described by v(x) = kx. The Schrödinger equation for the system is \frac{-\hbar^2}{2m}\frac{d^2}{dx^2}\psi = E_v B) \left(\frac{-\hbar^2}{2m}\frac{d^2}{dx^2} + kx\right)\psi = E_v E) None of these answers D) \left(\frac{-\hbar^2}{2m}\frac{d^2}{dx^2} + kx\right)\psi = E_v 5. [1 point] The expectation value for a physical observable represented by a Hermitian operator $\hat{O}\psi(x)$ is: A) $\int \psi^*(x)\hat{O}\psi(x)dx$ B) $\int \psi^*(x)\hat{O}\psi(x)dx$ C) $\int \hat{O}\psi^2(x)dx$ E) None of these answers 6. [1 point] Acceptable wave functions must satisfy which of the following requirements? A) Single valued B) Finite C) Continuous D) All of these answers 7. [1 point] The energy operator in quantum mechanics, $\hat{H} = (-\hbar^2/2m)\frac{\partial^2}{\partial x^2} + V(x)$ (Here given for 1 particle in one dimension) is called the: A) Lagrangian B) Laplacian C) Georgian E) Hamiltonian 8. [1 point] The operator $\nabla^2$ is called ______ operator A) Poisson B) Laplacian Hamiltonian D) vector 9. [1.5 points] Confirm that the wavefunction $\psi = A \sin(ax)$ is eigen function of kinetic energy operator $(-\hbar^2/2m)\frac{\partial^2}{\partial x^2}$, if yes, what is the eigenvalue? [Show your work]

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The function $f(x)$ satisfying $f'(x) = 2x^{-8/9}$ and $f(-1) = -8$ is $f(x) = 18x^{1/9} + 10$

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Problem 2 (15 pts) The circuit below is known as a shift-register. It shifts data from flip-flop to flip-flop at the pulse of the clk. The main components are D-Flip-Flops (not latches). For parts (a-c) assume that before time 0, we somehow loaded the DFF's to have the value 1101 stored in them (as show in the diagram). a) Given the initially stored values, complete the timing diagram for the outputs Q3, Q2, Q1, Q0 (assume the vertical lines on the timing diagram are worth 5ns and assume the delay of a DFF is 1ns). b) Given the delay of the DFF from part (a), what is the maximum frequency we could run the clock at in this system (your answer must be in Hz). c) If we used D-latches, instead of DFF's in this circuit (where the \"CLK\" input would be attached to the WE lines of the D-latches), would this circuit still act as a \"shifter\"? Explain your answer in 1 or 2 sentences. Q3 Q2 Q1 Q0 DQ D D GND (0V) CLK CLK Q3 Q2 Q1 Q0 Time = 0

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According to the Business Dictionary professional development is the "Process of improving and increasing capabilities of staff through access to education and training opportunities in the workplace, through outside organization, or through watching others perform the job." In your opinion what is professional development and how are you as an employee responsible for professional development? And as an individual apart of the career world, how can you balance your professional life and home life?

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A 5-year 9% coupon bond has a continuously compounded yield of 11%. Coupon payments are promised every six months. The yield on a default-free bond offering the same coupons is 7%. The amount recovered if there is a default is 40. Calculate the probability of default per year assuming that this is the same each year. The bond's face value is £100.

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