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alexander espa-ol

alexander e.

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From: Serial Murder (Burgess et al., 1990) In a study of 81 sexual offenders by Prentky et al. (1989), 81.2% of all cases of extreme nonsexual aggression in adulthood had prior evidence of Group of answer choices early childhood sexual abuse physical abuse/neglect traumatic brain injury

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Carlos is updating his estate planning and wants to draft a legal document that leaves everything to his spouse. He is writing a(n): Multiple Choice exemption trust will. guardian will. simple will. stated amount will. traditional marital share will.

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Using the method of joints, determine the force in each member of the double-pitch roof truss shown. Assume P=1.70 kN. The force in member AB (FAB) is The force in member AC (FAC) is The force in member BD (FBD) is The force in member BC (FBC) is The force in member CD (FCD) is The force in member CE (FCE) is The force in member DF (FDF) is The force in member DE (FDE) is The force in member FG (FFG) is The force in member EF (FEF) is The force in member GH (FGH) is The force in member EG (FEG) is The force in member EH (FEH) is kN. (Click to select) vv

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Perform the indicated operation and simplify the result. $\frac{2}{7} - \frac{1}{14}$

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2) Consider the detection gain for the linear modulation systems, defined by Fig. of M. = \frac{SNR_o}{SNR_i}, where $SNR_i$ represents the input SNR before demodulation while $SNR_o$ the output SNR after demodulation. a) A coherent demodulation is assumed for the DSB-SC signal and an additive white Gaussian noise (AWGN) is introduced in the channel. Clearly explain the reason why the demodulation process provides the detection gain of 2. (Hint: use the frequency-domain concept.) b) With the same assumptions as in part (a), clearly explain the reason why the detection gain reduces to 1 for the SSB signal.

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A study examined the empirical relationship between frictional shear stress and pressure in macro-scale contact and sliding. Amonton's law suggests that the interfacial shear stress is proportional to the average contact pressure with the coefficient of proportionality given by the coefficient of friction. However, adhesion between the two surfaces causes the relationship between interfacial shear stress and contact pressure to be linear rather than proportional. The friction tests were performed with a ball-on-flat reciprocating tribometer. Tests were run with one stainless steel ball and one alumina ball. The substrate material in all instances was stainless steel. The DataFrame shear contains the following variables Stress - interfacial shear strees in MPa Pressure - average contact pressure in MPa Material - material of ball used in test (Steel, Alumina) The edited output below shows the results of a linear regression fit in python with interfacial shear stress as the response and average contact pressure and material as explanatory variables. import statsmodels.formula.api as smf Model = smf.ols('Stress ~ Pressure + Material', shear).fit() print(Model.fit.summary()) OLS Regression Results Dep. Variable: Stress R-squared: Model: OLS Adj. R-squared: Method: Least Squares F-statistic: No. Observations: AIC: Df Residuals: 30 BIC: Intercept coef std err t P>|t| [0.025 0.975] Material[T.Steel] 13.37015 5.03094 3.15338 3.34519 Pressure 0.02269 0.00457

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Suppose that the total cost (in dollars) for a product is given by $C(x) = 1600 + 180 \ln(2x + 1)$ where $x$ is the number of units produced. (a) Find the marginal cost $MC$ function. $MC = $ (b) Find the marginal cost when 180 units are produced. (Round your answer to the nearest cent.) $ Interpret your result. \text{It will cost approximately this amount to make the next unit.} \text{This is the total cost of producing 180 units.} \text{The profit from the next unit will be approximately this amount.} \text{This is the total profit from producing 180 units.} (c) Total cost functions always increase because producing more items costs more. What then must be true of the marginal cost function? $MC \le 0$ $MC = 0$ $MC < 0$ $MC \ge 0$ $MC > 0$ Does it apply in this problem? Yes No

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1. (5 points) Consider the graph below. The start state is A, and the goal is H. Red numbers represent the cost estimate from a given vertex to the goal state. Black numbers are actual costs (weights) associated with an edge. Which states must be visited by A* as it finds the cheapest path to the goal?

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Question 12 0.6/6 pts 3-4 98 Details Score on last try: 0.6 of 6 pts. See Details for more. Get a similar question You can retry this question below Which investment will earn more money, a $1,000.00 investment for 4 years at 9% compounded continuously or a $1,000.00 investment for 4 years at 10.5% compounded every 2 months a) 9% compounded continuously would be worth $ 1411.58 X. (Round to 2 decimal places.) b) 10.5% compounded every 2 months would be worth $ places.) c) 9% compounded continuously would be worth more 10.5% compounded every 2 months would be worth more The would be worth the same. Question Help: Message instructor Submit Question

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What is d=? Ethyl alcohol (density p = 789 kg/m^3, viscosity = 1.19 x 10^-3 Pa·s) flows through a pipe of diameter D = 60 mm in a refinery. The pressure drop across the Venturi meter used to measure the flow rate Q is p = 4 kPa when the flow rate is Q = 0.003 m^3/s. Figure 1: The Venturi meter used to measure the flow rate.

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