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Karen and Anika are owners of a new personal assistant service called Assist You 2. They live in an area populated by single professionals, small local business owners, retired senior citizens, and families with little kids. For Karen and Anika, each of these groups, or segments, is a potential Multiple Choice positioning group. consumer group. target market. strategic fit. market segment. Prev 1 2 3 4 of 4 Next >

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2 Aufgabe: Schwingungsdämpfung (13 Punkte) Gegeben sei der Amplituden- und Phasengang eines linearen dynamischen Systems in Abbildung 2. der untere Frequenzbereich (Grunddynamik) weist bereits das gewünschte Verhalten auf. Bei höheren Frequenzen tritt allerdings eine störende Resonanz auf. die im Folgenden durch Maßnahmen zur Schwungungsdämpfung behandelt weden soll. Hinweis: Die Dämpfung eines linearen dynamischen Systems 2. Ordnung lässt sich durch folgende Glei- chung ermitteln: $D^2 = \frac{1}{2} - \sqrt{\frac{1}{4} - (\frac{K}{2 \cdot A(\omega Res)})^2}$ (1) Abbildung 2: Bode-Diagramm des Gesamtsystems (a) durch welches einfaches Übertragungsverhalten lässt sich die Grund Dynamik des Systems approximieren?begründen sie ihre Entscheidung und geben Sie die Kenngrößen des Systems an (3 Punkte) (b) geben Sie eine Blockschaltbild für eine aktive Schwingungsdämpfung und die frequenzganggleichung für einen idealen Dämpfer an (2 Punkte) (c) die Resonanzstelle kann durch ein lineares dynamisches System 2. Ordnung mit Verstärkungsfaktor 1 angenähert werden. Bestimmen Sie die anderen kängurusen des resonanzmoduls. (2 Punkte) (d) welchen Art muss der Verstärkungsfaktor des Dämpfers aufweisen, wenn das lehr'sche Dämpfungs- maß des Systems auf 1 erhöht werden soll? (4 Punkte) (e) Nennen sie mindestens zwei Vor- und zwei Nachteile dieser Methodik der aktiven Schwingungs- dämpfung. (2 Punkte)

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You are in your car traveling at 15 m/s. You hit the accelerator and increase your speed to 30 m/s. How has the kinetic energy of your car changed?

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What is the first derivative of $q(x) = \ln(5x^2 + 6x)$?

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Based on the facts discovered in our literature search, which of the following is a reasonable hypothesis we can test? (please note: some of these statements may be theories, while others may not be supported by the facts we've discovered in our lit review). Humans save more energy walking on two legs than on four legs. Our early human ancestors walked on two legs to travel farther than chimps. Chimps save more energy walking on two legs than on four legs. Our early human ancestors stood up to see farther in the trees.

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5.101. The Zener diode in Fig. P5.101 has Vz = 6 V and Rz = 100 S2. What is the output voltage if Ii=20 mA?Use Is=1 x 10-16 A,F =50,and BR = 0.5 to find a precise answer. +15V 7.8 kQ Y Zener diode 4.7 kQ IL Figure P5.101

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Solve using MATLAB. Also, solve using handwritten solutions. Consider the unity feedback system: C(s) = (5+1) + 2(5+7)/(4s^2(s^2 + 2)). Using MATLAB, find the poles of the system. Also, determine if the system is stable or unstable. Script: % Numerator variable num % Denominator variable den Ts = tf([5 1], conv([4 0], [1 0 2])); % Poles of Ts poles = pole(Ts); % Stability question stabilityQuestion = isstable(Ts);

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A CSTR has one feed stream F1, and one exit stream, F2. The feed contains pure species A, which undergoes a second order reaction in side the reactor. The term for the exit stream to the reactor in the differential equation that describes the change in concentration of A, $\frac{dC_A}{dt}$, is best represented by: $-C_A^2 k_0 e^{\frac{-E_a}{RT}}$ $F_2C_{A,2}$ $C_A^2 k_0 e^{\frac{-E_a}{RT}}$ $F_1C_{A,1}$ $-F_2C_{A,2}$ $-F_1C_{A,1}$

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For this discussion, choose at least four of the following questions to explore in your post. Then, respond meaningfully to at least two other students' posts. 1. What elements do you notice in the Norse creation myth that is characteristic of creation myths? 2. What connections can you make to flood myths? What do flood myths typically symbolize? 3. What connections can you make to dstruction/death/resurrection myths? 4. How does Norse geography influence these stories? Provide specific examples. 5. What does Yggdrasill symbolize? 6. Loki is an example of a trickster character. What characteristics do you notice that might be typical of such a character? 7. What elements of Norse culture shine through the myth? Provide specific details.

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Problem #10: Find the value of $y'$ when $x = 0$ if $xy^2 + e^{y/3} = e$

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philip a.