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amanda huynh

amanda h.

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The equilibrium system 2H2S(g) D 2H2(g) + S2(g) was found to consist of 0.20 M H2S, 0.40 M H2, and 0.080 M S2. The value of the equilibrium constant for this reaction is. . . a. 0.32 b. 0.16 c. 3.1 d. 6.2 e. 0.40

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In 1937, Elixir Sulfanilamide contained antifreeze, which caused more than 100 deaths in children who took this cough medicine. As a result of this incident, the FDA was given the authority to require which of the following (select one): Safety testing Testing on pregnant women Advertisment of the product Efficacy studies (prove the drug is effective)

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What is the 'dirty secret of capitalism'? Group of answer choices the promise of economic development can only be realized under a free-market economy the displacement of environmental costs of perpetual growth to others poor countries don't have power to safeguard their interests environmental problems can only be mitigated once a certain level of economic growth has been achieved

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Find $f_{xx}(x, y)$ for $f(x, y) = \frac{2x^2}{y} + \frac{y^2}{8x}$.

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Problem 3. Convert decimal number to hexa-decimal (10 pt.) 1) 26 2) 61 3) 82 4) 139 5) 224

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3 25 points Consider the system shown in the figure below. Assume the system is moving in a horizontal plane. With $k = 10000$ N/m, $c = 15$ kg/s, $m = 1$ kg, $a = 1$ m, and $F(t) = 10000t$ N, determine the tip displacement response of the rigid bar at $t = 0.003$ s. Assume the rigid bar is massless. Hint: $\int_{t_0}^{t} (t - \tau)e^{a\tau}sin(b\tau)d\tau = \frac{a}{a^2 + b^2}(t_0 - t)e^{at_0}sin(bt_0) + \frac{b}{a^2 + b^2}(t - t_0)e^{at_0}cos(bt_0) + \\ \frac{a^2 - b^2}{(a^2 + b^2)^2}(e^{at}sin(bt) - e^{at_0}sin(bt_0)) - \frac{2ab}{(a^2 + b^2)^2}(e^{at}cos(bt) - e^{at_0}cos(bt_0)) 0.04 mm 0.02 mm 0.09 mm 0.15 mm 0.03 mm

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Problem #3: Air at 100 kPa, 25 °C enters a compressor with a velocity of 12 m/s at a rate of 1.8 lb/s. At the exit the pressure is 600 kPa, the temperature is 250 °C and the velocity is 2 m/s. Heat transfer from the compressor occurs at a rate of 23 kW. What would be the savings in required power input if this compressor was replaced by an adiabatic compressor with negligible change in kinetic energy?

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Given the system in the Figure1 find the following R(s) \frac{1}{s^2(s+1)} \frac{1}{s^2(s+3)} C(s) \frac{1}{s} Figure 1:Closed loop System a) The closed-loop transfer function. b) Determine system type. c) Evaluate the steady-state error for an input of 5u(t) d) Evaluate the steady-state error for an input of 5tu(t)

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You walk 53 m to the north, then turn 60° to your right and walk another 45 m. Determine the direction of your displacement vector. Express your answer as an angle relative to east. 63° N of E 50° N of E 69° N of E 57° N of E

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(b) (5 marks) In the polar coordinates $r := \sqrt{x^2 + y^2}$ and $\theta := \arctan(\frac{y}{x})$, Laplace's equation on the unit disk for the unknown function $u = u(r, \theta)$ takes the form $\frac{\partial^2 u}{\partial r^2} + \frac{1}{r} \frac{\partial u}{\partial r} + \frac{1}{r^2} \frac{\partial^2 u}{\partial \theta^2} = 0$, $0 < r < 1$, $0 \le \theta < 2\pi$. Find the particular solution that satisfies the boundary condition $u(1, \theta) = \cos \theta$, $0 \le \theta < 2\pi$.

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