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william bauer

william b.

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Q2. Consider the signal $y(t) = 5\cos(200\pi t - \pi/9) + 3\sin(300\pi t + \pi/6) - 4\sin(600\pi t)$. (a) For successful reconstruction of the signal what will be your chosen sampling frequency, comment (with proper illustration/ justification) (3) (b) Plot the respective discrete time signal $y(n)$ (generated using the chosen sampling frequency in Q2(a)) showing 2 complete cycles. X-axis should be shown in seconds. (1)

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\log_3 72 - \log_3 9 = \log_3 \boxed{123}

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Part 1 (1 point) Write a balanced nuclear equation for the positron emission of $^{11}C$. X X He $\beta^+$ Part 2 (1 point) Calculate the binding energy of $^{11}C$. The atomic mass of $^{11}C$ is $1.82850 \times 10^{-26}$ kg. 3rd attempt J

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Match the following pairs about Navigation Features. Thumbnail [Choose] Size of the view [Choose] Toolbar [Choose] Scale bar [Choose] Magnifications [Choose] Pointer [Choose] Navigation Buttons [Choose] List of Views [Choose]

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5- If compressive stress \sigma_x = -110 psf, \sigma_y = 110 psf tension, and \tau_{xy} = 40 psf, use Mohr Circle of stresses to find principal stresses and their planes (please show principal planes). (4 points)

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Homework 6.G Given: A homogeneous wheel of mass m and outer radius R rolls without slipping on a horizontal surface. Block A, also having a mass of m, is pinned to the center O of the wheel and is able to slide without friction on the same horizontal surface. A spring of stiffness k and a dashpot of damping constant c are connected between block A and the ground. Let x represent the motion of block A measured positively to the right. When x = 0 m, the spring is unstretched. Find: For this problem: a) Draw individual free body diagrams for block A and the wheel. b) Derive the single differential equation of motion for the system in terms of the coordinate x, its time derivatives, and the following parameters: m, R, c, and k. c) Determine numerical values for the undamped natural frequency wn, the damping ratio ζ, and the damped natural frequency wd. d) Determine the response of the system x(t) for t > 0, assuming the system is released when the springs are unstretched with x₀ = vo. Use the following parameters in your analysis: m = 4 kg, k = 2250 N/m, R = 0.1 m, c = 60 kg/s, and vo = 8 m/s.

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4. Compute the pressure loss in 400 ft of 3 in Sch 40 commercial steel pipe carrying 275 gpm of water at 60 deg F.

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A thin layer of metal transmits electromagnetic radiation according to the approximation \begin{equation} t = \frac{1}{(1 + \frac{d \sigma_1}{2})^2 + (\frac{d \sigma_2}{2})^2}, \end{equation} (1.8.27) where $t$ is the transmitted fraction of the energy, $\sigma_1$ and $\sigma_2$ are the real and the imaginary part of the conductivity, $d$ is the thickness of the metal, and $z = 377 \Omega$ [MKSA units] or $4\pi/c$ [CGS units]. (a) Assume that a superconductor is described by $\sigma_1(\omega) = \pi \Omega_p \delta(\omega)$; the Cooper pair condensate results in a delta function at zero frequency. Calculate the transmission coefficient $t$ for low, but nonzero frequencies, and show that the frequency dependence of the transmission can be used to evaluate $\Omega_p$. (b) Based on the Drude model (with $1/\tau = 0$), estimate the (su- per)conduction electron density $n$, if $t = 0.02$ for $\lambda = 0.01$-cm-wavelength IR radiation. The thickness of the film is $d = 1000 \AA$.

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When five-year-old Jonathan draws a picture, he takes it to his father and says, "Hey, daddy, look at my picture!" His father looks up from his paper and says, "Uh-huh," and goes back to reading. Jonathan draws another picture and takes it to Mom. Mom says, "Yes, dear, now go on and play with your blocks." Jonathan stops drawing pictures from then on. Is this operant or classical conditioning? What is the behavior involved? What kind of consequence follows his behavior? Does the behavior increase or decrease? Is this reinforcement or punishment, or something else? Explain: Party Pay-Back You throw a party, at which you consume too much alcohol (vodka and orange juice). You become very sick and spend a few hours vomiting. The next morning, while cleaning up the mess, you get a whiff of the vodka and orange juice that was still sitting out in the kitchen. You immediately become nauseated and run to the bathroom to vomit some more. Is this operant or classical conditioning? What is the unconditioned stimulus? What is the unconditioned response? What is the conditioned stimulus? What is the conditioned response? Do you think the association that has been formed (stimulus-response) will possibly affect your behavior in the future?

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What would be the outcome of injecting a female rat with oxytocin receptor blockers after she has given birth to pups? A) She would nurse and care for her pups as a mother rat normally would B) She would fail to bond with the pups, and may even abandon them C) She would attack the pups D) She would attack the father of the pups but nurse and care for the pups

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