Numerade

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Find a vector that has the same direction as but has length .

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What is the potential difference across the 10 \Omega resistor? Express your answer with the appropriate units.

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In the US, social anxiety disorder is related to a fear of __________. In Japan, a similar condition called taijin kyofusho involves fears of __________. being unpopular; being the center of attention. embarrassing oneself; embarrassing others public speaking; being alone being in crowds; going out in public

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1. Complete the table below. For each of the monoatomic and polyatomic ions, either write the name or chemical symbol of the ion formed. Three have been filled in already as an example. Ionic Symbol Name of Ion $Co^{2+}$ Cobalt (II) ion Br Bromide ion $Mg^{2+}$ $PO_4^{3-}$ Cl $Pb^{4+}$ $S^{2-}$ $Al^{3+}$ $Cr^{3+}$ $SO_3^{2-}$ Nitrate ion Copper (II) ion Silver ion Iodide ion Nitride ion Rubidium ion Calcium ion Ammonium ion

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Given an upward-sloping aggregate supply curve and a downward-sloping aggregate demand curve, an increase in aggregate demand will

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Soit f une fonction continue et positive sur [a, b]. Montrez qu'il existe un c élément de (a, b) tel que ∫_a^c f dx = ∫_c^b f dx.

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X ~ N(50, 11). Suppose that you form random samples of 25 from this distribution. Let $\bar{X}$ be the random variable of averages. Let $\sum X$ be the random variable of sums. Sketch the distributions of $\bar{X}$ and $\sum X$ on the same graph. Give the distribution of $\bar{X}$. (Enter an exact number as an integer, fraction, or decimal.) $\bar{X}$ ~ ( , ) Sketch the graph, shade the region, label and scale the horizontal axis for $\bar{X}$, and find the probability. (Round your answer to four decimal places.) P($\bar{X}$ ? 52) = Find the 10th percentile. (Round your answer to two decimal places.) Sketch the graph, shade the region, label and scale the horizontal axis for $\bar{X}$, and find the probability. (Round your answer to four decimal places.) P(46 < $\bar{X}$ < 52) = Sketch the graph, shade the region, label and scale the horizontal axis for $\bar{X}$, and find the probability. (Round your answer to four decimal places.) P($\bar{X}$ < 47) = Give the distribution of $\sum X$. $\sum X$ ~ ( , ) Find the minimum value for the upper quartile for $\sum X$. (Round your answer to two decimal places.) Sketch the graph, shade the region, label and scale the horizontal axis for $\sum X$, and find the probability. (Round your answer to four decimal places.) P(1150 ? $\sum X$ ? 1300) =

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If $\cot \theta = -\frac{3}{4}$ and $\sin \theta < 0$, then the value of $(\sin \theta - \cos \theta)^2$ is:

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Question 10 F?(t)= F? cos ?t m F?(t) = F?cos ?t x?(t) k? x?(t) Original reciprocant machine keq = \frac{192EI}{p}\frac{at³}{12} m? x?(t) m 1 pts A reciprocating engine of mass m? =80 Kgr is mounted on a fixed-fixed beam of length l, width a, thickness t, and Young's modulus E, that has an equivalent spring constant k_{eq} = 3.68x10? N/m and is working on resonance when the force F?(t)=F? cos ?t, is developed in the engine during its operation. It has been decided to reduce vibration by suspending a spring-mass system (k?, m?) from the beam as indicated. Find the mass of the suspended system so that the new natural frequencies of the two Degree of freedom system are at least 20% apart from the operating frequency. ? m? = 17.2 kg ? m? = 19.2 kg ? m? = 18.2 kg ? m? = 16.2 kg

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Use Equilibrium to determine the reactions at A and C in the following beam with a uniformly distributed load of 20 lb/ft from A to B and a triangular distributed load of a maximum 20 lb/ft from B to C. There's a pin at A and a roller at C. w = 20 lb/ft A 10' 16' C B What is Ax in lbs? Do NOT type in units. Report answer to one decimal place. Only type in a "-" if force is acting to the left or downwards.

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matthew t.