Numerade

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A 1.4 kg object moving with a speed of 6 m/s collides perpendicularly with a wall and emerges with a speed of 4 m/s in the opposite direction. If the object is in contact with the wall for 6 ms, what is the magnitude of the average force on the object by the wall (in N)?

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A capacitor drawing 4 kvar of reactive power is placed in parallel with the electromagnet in Question 1. How does this effect the apparent power S and the power factor cos (theta)?

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The radius of gyration of a three-dimensional partially rigid polymer of 1500 units each of length 164pm was measured as 3.0nm. What is the persistence length of the polymer?

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(a) Find the breakaway points on the root locus and the value of gain at those points. (b) In the design of ventilators, it is very important to have negligible overshoot with the fastest possible settling time. It has been suggested that a value of K = 5.35 will achieve these specifications. Mark the position of the closed-loop poles for this value of K and explain why this is a reasonable gain choice.

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Which of the following is true of the project evaluation criteria? O Costs are preceded by a + sign. O Disbenefits are added to benefits and placed in the numerator. O Salvage values and additional revenues to the government are added to costs in the denominator. O The sign convention for B/C analysis is negative signs.

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6. [0.2/1 Points] DETAILS MY NOTES ZILLDIFFEQMOD Verify that the vector $X$ is a solution of the given homogeneous system. $X' = \begin{pmatrix} -1 & \frac{1}{25} \\ 1 & -1 \end{pmatrix} X$; $X = \begin{pmatrix} -1 \\ 5 \end{pmatrix} e^{-6t/5}$ For $X = \begin{pmatrix} -1 \\ 5 \end{pmatrix} e^{-6t/5}$, one has $X' = \begin{pmatrix} \\\\\ \end{pmatrix}$ $\begin{pmatrix} -1 & \frac{1}{25} \\ 1 & -1 \end{pmatrix} X = \begin{pmatrix} \\\\\ \end{pmatrix}$.

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An airplane propeller is rotating at 1900 rev/min. Compute the propeller's angular velocity in rad/s. Express your answer in radians per second. $\omega = 200 \text{ rad/s}$ Submit Previous Answers ? Correct Part B How long in seconds does it take for the propeller to turn through 39°? Express your answer in seconds. t = Submit Request Answer ?

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Race as a social construct means O physical differences such as skin color are assumed by members of society to mean that those groups inherently differ in many other ways such as in intelligence and/or ability O the concept of race does not exist in our society O because race is something people create/construct, race has little impact in our society O physical differences such as skin color mean that those groups inherently differ in many other ways such as in intelligence and/or ability Next

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It's 2020. Andy and Joan are married and under 65 years of age. They have two children: Monti and Silvia. Monti is 5 years old and receives all of his support from his parents. Silvia is 20 years old and receives less than half of her support from her parents. Both Monti and Silvia live with their parents. Silvia graduated from high school in 2016 and does not plan to go to college. Silvia earned $3,000 from a part-time job. Andy and Joan also provide more than half of the support of Andy's brother who lives with them full time and has no income. How many total dependents do Andy and Joan have? Select one: Oa. Two, Monti and Andy's brother O b. Three, Monti, Silvia, and Andy's brother Oc. Two, Monti and Silvia d. One, only Monti

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Unlike bluegrass music, which has largely remained true to its traditional instrumentation and sound, the country music of today sounds quite a bit different than that of yesteryear. Since modern country music is open to changing with new styles and innovations in music, what kind of culture would modern country music fit into? folk hybridized popular abbreviated

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melanie a.