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blanca clayton

blanca c.

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In order to understand how this equation is derived and why it holds true, the product of each side of the equation should be examined. What value and unit do you get when you multiply a concentration of 0.547 M M by a volume of 0.450 L L ? This question can be expressed as

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How much is that gold worth? 65 grams @ $1100 an ounce? 1 pound = 16 ounces = 453.6 grams Group of answer choices $1100/16 = $68.75 16 * 453.6 = $7,257.60 (65 / 453.6) = 0.43 *1100 = $473 (65*16*1100)/453.6 = $2522.04

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Determine whether the equation is exact. If it is, then solve it. \left[2y \cos \left(xy\right) + \frac{5}{\sqrt{1 - x^2}}\right]dx + \left[2x \cos \left(xy\right) - 5y - \frac{1}{7}\right]dy = 0 For the given equation, write out the condition for exactness. \frac{\partial}{\partial y}\left[2y \cos \left(xy\right) + \frac{5}{\sqrt{1 - x^2}}\right] = \frac{\partial}{\partial x}\left[2x \cos \left(xy\right) - 5y - \frac{1}{7}\right] Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Type expressions using x and y as the variables.) A. The equation is exact because $\frac{\partial M}{\partial y}\left(x, y\right) = \frac{\partial N}{\partial x}\left(x, y\right) = 2 \sin \left(xy\right)$. An implicit solution in the form $F\left(x, y\right) = C$ is $2 \sin \left(xy\right) + 5 \arcsin \left(x\right) - \frac{5}{2}y^2 - \frac{1}{7}y = C$, where $C$ is an arbitrary constant. B. The equation is not exact because $\frac{\partial M}{\partial y}\left(x, y\right) \ne \frac{\partial N}{\partial x}\left(x, y\right) = $

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1 1 point Below are statements that are all correct. Which ones explain why the cognitive revolution happened? 1. In Tolman's study, rats seemed to have acquired mental maps, which explained their behavior in a new maze better than their previously conditioned responses. 2. Behaviorists had significant contributions to psychology, such as explaining fear acquisition, taste aversion, animal training, among others. 3. Children learning English will sometimes generate rules on their own (example: the ending -ed conjugates verbs in past tense) and incorrectly apply them to new words (example: swimmed), demonstrating that reinforcement is not sufficient to explain language acquisition. Page 7 4. Even though structuralists like Wundt and Titchener wanted to study unobservable mental representations, their use of introspection did not take them very far in understanding these mental representations. 5. The behaviorist approach to study only what was observable meant that the role of beliefs, preferences, or goals could not be examined as potential explanations of behavior. 1, 3, 4, and 5 2 and 4 2, 4, and 5 1 and 3

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is a person's subjective judgment of the intensity of the outgoing motor command associated with performing a submaximal contraction.

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The annual amount of energy produced in a country from dry natural gas (in trillion cubic feet) can be approximated by the function $g(t) = 15.45(1.043)^t$, where $t = 10$ corresponds to the year 2010. (a) Find the amount of dry natural gas energy produced in 2013. (b) If the model continues to be accurate, project the amount of dry natural gas energy produced in 2023.

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Which enzyme of the citric acid cycle is also part of the respiratory chain? Question 60 options: A) Succinate dehydrogenase. B) Isocitrate dehydrogenase. C) Malate dehydrogenase. D) alpha -Ketoglutarate dehydrogenase

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How many valence electrons does each of the following elements have? a. Arsenic b. Silicon c. Potassium Submit Answer Try Another Version 5 item attempts remaining

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Dynamics of a falling pinned pole A telephone pole has been knocked over by the wind so that it makes an angle of \(\theta = 20\) degrees with the vertical. The wind has stopped blowing and the pole is to be cut down as shown. Once the cut is across most of the thickness of the pole, the pole begins to tip over. As the pole tips, the bottom of the pole stays attached to the base by the remaining part of the pole that was not cut (but the torque from the base on the tipping pole is negligible). There is a nail (of negligible mass) on the pole located a distance \(x = 44.7\) m from the cut. The length of the pole from the cut to the top is \(L = 60\) m. Remember that the moment of inertia of a stick of mass m and length L about its end is \((1/3)mL^2\). At what angle with respect to the vertical will the magnitude of the tangential acceleration of the nail be equal to g? Submit Answer Incorrect. Submissions to practice problems are not permanently recorded. If \(\theta = 72.1\) degrees, what is the magnitude of the angular acceleration of the nail? Opts Submit Answer Tries 0/99 Previous Tries If the angular speed of the pole is 0.55 rad/s when \(\theta = 72.1\) degrees, what is the magnitude of the centripetal acceleration of the nail at that angle? Opts Submit Answer Tries 0/99 If the angular speed of the pole is 0.65 rad/s when \(\theta = 85.5\) degrees, and the angular acceleration of the pole is 0.244 rad/s\(^2\) at that angle, what is the magnitude of the total acceleration of the nail at that point? Opts Submit Answer Tries 0/99

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Vinyl chloride (H2C=CHCl), the starting material used in the industrial preparation of poly(vinyl chloride), is prepared by a two-step process that begins with the reaction of Cl2 with ethylene to yield 1,2-dichloroethane: Cl2(g) + H2C=CH2(g) ? ClCH2CH2Cl(l) ?H° = -217.5 kJ/mol ?S° = -233.9 J/(K·mol) (a) Tell whether the reaction is favored by entropy, by enthalpy, by both, or by neither, and then calculate ?G° at 298 K. (b) Tell whether the reaction has an equilibrium temperature between spontaneous and nonspontaneous. If yes, calculate the equilibrium temperature.

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