Numerade

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A sine-wave generator with output given by $V(t) = V_p \cos(\omega t)$ is applied to a series $RLC$ circuit. The peak output of the sine-wave generator is $20.0$ V. At the circuit's resonant frequency of $f_0 = 750$ Hz, the peak current is $108$ mA. At $1.34$ kHz, it's $40.8$ mA. (a) Find the values for $R$, $L$ and $C$. (b) Determine the functional form of the phase of the current $\phi(\omega)$ relative to the source voltage (c) What is the time-averaged power of the circuit at $f = 900$ Hz?

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18) An example of "specifying behavior only" is: (5pts) Question 18 - An example of "specifying behavior only" is: “I will study at 7 PM” “I will study hard” “At 7 PM, I will study for 30 minutes” “Studying in the library at 3 PM”

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Let x_(1),x_(2),dots,x_(n) be iid random variables with mean \mu and variance \sigma ^(2). Define the random variable Z=((\bar{x} )-\mu )/((\sigma )/(\sqrt(n))) where \bar{x} =(1)/(n)(x_(1)+x_(2)+...+x_(n)). Find the mean and variance of Z.

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Evaluate the integral Integral from negative 1 to 1 15 Superscript x Baseline dx∫−1115xdx.

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In an oxidation-reduction reaction, the "reduced" reactant q, loses energy loses hydrogen ions gains electrons gains negatively charged ions

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Assume the cost for an automobile repair is normally distributed with a mean of $437 and a standard deviation of $92. If the cost for your car repair is in the lower 7% of automobile repair charges, what is your cost? 374.8378 300.8400 573.1600 499.1622 None of the answers is correct

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When it comes to how clear cut an event is, research has found that ______. clear cut events are less stressful than ambiguous ones ambiguous and clear cut events are appraised differently each time ambiguous and clear cut events are equally stressful ambiguous events are less stressful than clear cut ones

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1. A system of equations is given: $2x_1 - 2x_2 + 5x_3 = -6$, $-x_1 + 4x_2 - 5x_3 = 3$. (a) Write the system of equations in matrix equation and vector equation forms. (b) Use the Row Reduction Algorithm to solve the system.

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1. Early on in the pandemic, concerned about possible shutdowns, shoppers rushed out to buy lots of extra toilet paper. This would best be described by which of the following: a. There was a reduction in supply of toilet paper b. There was an increase in demand for toilet paper c. There was a reduction in the quantity supplied of toilet paper d. There was a reduction in the quantity of toilet paper demanded e. Demand for toilet paper become more elastic f. All of the above g. None of the above

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The differential equations for the charge $q(t)$ in an LRC circuit is $Lq''(t) + Rq'(t) + \frac{q(t)}{C} = V(t)$. Find the charge and current in an LRC circuit with L = 1 H, R = 2 Ohm, C = 0.25 F and V = 50cos(t) volts, if q(0) = 0 C and i(0) = 0 A.

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jose h.