Numerade

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Give a brief example of an exchange/interaction that illustrates Contempt of Gottman's 4 Horsemen. Provide a rationale for why this interaction illustrates that concept.

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Determine the theoretical yield of H2S (in moles) if 32 mol Al2S3 and 32 mol H2O are reacted according to the following balanced reaction. A possibly useful molar mass is Al2S3 = 150.17 g/mol. Al2S3(s) + 6 H2O(l) → 2 Al(OH)3(s) + 3 H2S(g)

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What is the method of microbe control that physically removes micro ohms from liquids or air without killing them desiccation lyophilization irradiation filtration Cold sterilization

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Select the term that best fits the following description: Several different rhythms sounding at the same time. Select one: ride rhythm polyrhythm 32-bar AABA form chord progression

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Using only the periodic table arrange the following elements in order of increasing atomic radius: polonium, barium, lead, cesium Smallest Largest Please answer this question according to the general rules you have learned regarding periodic trends. DO NOT base your answer on tabulated values since exceptions may occur. Submit Answer 3 question attempts remaining

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1. If you invest $150 monthly in an individual retirement account (IRA) for a decade with a monthly compound interest rate of 1%. What will be the return after ten years? Please draw the cash flow diagram and use Excel macro to find the answer. (20 points) 2. If the interest rate drops to .5% per month, what will be the amount of money you need to invest every month to get the same return in (1), but at the end of five years? Please use Excel macro to find the answer. (15 points)

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You wish to determine if there is a linear correlation between the two variables at a significance level of $\alpha = 0.05$. You have the following bivariate data set. \begin{tabular}{|c|c|} \hline x & y \\ \hline 26.7 & 85.1 \\ -4.2 & -50.5 \\ 13.2 & 44 \\ 27.7 & 70.8 \\ 43.9 & 102.4 \\ 53.1 & 133.3 \\ 28.9 & 63.3 \\ 28.5 & 61 \\ 24.2 & 54.9 \\ 41.9 & 108 \\ 41.5 & 106.8 \\ 41.3 & 114.7 \\ 56.3 & 155.6 \\ 44.3 & 88.6 \\ \hline \end{tabular} What is the correlation coefficient for this data set? What is the $p$-value for this correlation coefficient? Your final conclusion is that \begin{itemize} \item there is insufficient evidence to conclude that there not is a correlation between the two variables. \item there is sufficient evidence to conclude that there is not a correlation between the two variables. \item there is sufficient evidence to conclude that there is a correlation between the two variables. \item there is insufficient evidence to conclude that there is a correlation between the two variables. \end{itemize} Note: In your calculations, round to 3 decimal places in ALL calculations.

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On July 1, 2004, the 4523-kg Cassini spacecraft approached Saturn with hyperbolic excess velocity Vâˆž = 5.5 km/s to swing by the planet at the closest approach distance rp = 80,680 km. The Isp for the maneuver performed at the closest approach to Saturn to transfer the Cassini spacecraft into a 116-day elliptical orbit having the same periapsis point as the approach (hyperbolic) trajectory. (a) Compute the impulsive Î”V magnitude required for a maneuver performed at the closest approach to Saturn to transfer the Cassini spacecraft into a 116-day elliptical orbit having the same periapsis point as the approach (hyperbolic) trajectory. (b) How much propellant would have been consumed by this impulsive orbit insertion maneuver?

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5) (20 pts) Determine the solutions for the following: a) (6 pts) For each of the following systems (where $x[n]$ is the input and $y[n]$ is the output), determine whether or not the system is a) linear, b) time-invariant, and c) causal: [answer Yes/No clearly for each part]: i. $y[n] = n x[n] + x[n-1]$ ii. $y[n] = |x[n]|$ b) (10 pts) Determine the 4-point DFT ($X[k]$) of the sequence $x[n] = \{1,0, 0, 1\}$. c) (4 pts) Write the formula for a radix-2 FFT algorithm to implement the above 4-point DFT assuming a n-point DFT of a sequence $x[n]$ is denoted by $DFT_N\{x[n]\}$.

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1) For each of the periodic signals shown below, find the compact trigonometric Fourier series. If either the sine or cosine terms are absent in the Fourier series, explain why.

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alexandra m.