Numerade

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A. 74.3% of the variation of oxy can be explained by the runtime B. the coefficient of determination is 86.2 C. there is no relationship between oxy and runtime D. 86.2% of the variation in runtime can be explained by oxy

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With an artificial neural network, the weights are added to the connections, but the bias is added to the neuron

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Design & sketch a rigid type of flange coupling to connect two shafts. The input shaft transmits 25 kW power at 400 rpm to the output shaft through the coupling. Assuming all parts of the coupling are made of plain carbon steel of grade 45C8 and FOS is 5

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1. $ \left\{\frac{2 n^{2}}{n^{2}+1}\right\}, a_{1}=1, a_{2}=\frac{8}{5}, a_{3}=1,8, a_{4}=\frac{32}{17}=1 \frac{15}{17} \ldots $ \[ \frac{2 n^{2}+2-2}{n^{2}+1}=2-\frac{2}{n^{2}+1} \Varangle \rightarrow 2 \] a) bounden above; $ \quad\left\{a_{n}\right\} \rightarrow 2 $ b) positive c) increasing $ \left(-a_{n}\right)+a_{n+1}=\frac{2 n^{2}+4 n+2}{n^{2}+2 n+2}-\frac{2 n^{2}}{n^{2}+1}=\frac{2 n^{4}+2 n^{2}+4_{n}^{3}-4 n+2 n^{2}+2}{\left(n^{2}+1\right)\left(n^{2}+2 n^{2}+2\right)}- $ \[ \begin{aligned} -\frac{2 n^{4}+4{ }^{3}+4{ }^{2}}{\left(n^{2}+1\right)\left(n^{2}+2 n+2\right)} & =\frac{2}{\frac{\left(n^{2}+1\right)\left((n+1)^{2}+1\right)}{70}}>0 \\ a_{n+1} & >a_{n} \end{aligned} \] $ \left\{a_{n}\right\} $ is increasing d) covergent to 2

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Mary believes that all men are pigs. This is an example of discrimination. True False

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What would Kant say about the action of a man who has absolutely no sympathy or compassion for others, but decides to help another person in need simply because he believes it is the right thing to do? Question 6 options: His action has no moral worth because it was not motivated by good emotions His action has no moral worth because it was not in his own self-interest His action has genuine moral worth because it was motivated by duty His action has genuine moral worth because it produced good consequences

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What telomere sequences are found at the telomeres of human chromosomes? What are the functions of telomerase and shelterin at chromosome ends?

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Calculations The actual yield is the amount of pure product actually obtained in an experiment. The theoretical yield is the amount that could be obtained under theoretical or ideal conditions. The theoretical yield is determined from the stoichiometry of the experiment and from the amount of starting material actually used. However, due to incomplete reactions, side reactions and mechanical losses, the theoretical yield is never achieved. We therefore use the percentage yield as a measure of the overall efficiency of a reaction. Percentage yield = \frac{actualyield}{theoretica yield} \times 100% Although it is usually considered just as important to obtain a satisfactory yield as a pure product, purity must not be sacrificed for greater yields of impure product. Discussion 1. If the prepared ASA sample turned purple when mixed with FeCl3 solution, what would you conclude about your prepared ASA sample? 2. What was the melting point of the prepared aspirin? How does the melting point compare with the literature value? Account for any difference between your melting point and the literature value. Questions 1. Draw the structure of methyl salicylate, and say what evidence indicates that methyl salicylate was

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1. By using the free electron theory of metals, explain thermal conduction in metals and how the conduction electrons contribute to heat capacity. (25 marks) 2. Sodium (Na) has a density of 0.97 g cm$^{-3}$. Calculate the Fermi energy for the electrons in the metal in electron-volt (eV) by assuming that each Na atom donates one electron to the electron gas. (20 marks) 3. A system consists of N distinguishable particles and n phase space cells. The energy of the particles is non-degenerate where, $\epsilon_1 = \epsilon_2 = \epsilon_3 = \dots = \epsilon_n = \epsilon$ Determine the internal energy, U and entropy, S. (25 marks) 4. Based on the Kinetic Theory of Gases, determine the Sackur-Tetrode equation for the entropy of a monatomic ideal gas and elucidate the significance of the Sackur-Tetrode equation. (35 marks) 5. Elucidate what is likely to happen to the mean velocity of the gas if the Boltzmann constant is 1.38 x 10$^{-2}$ J/K. (10 marks) 6. A scientist wants to create a micro-box using a novel material to contain the particles of a newly discovered gas. However, he has only 64 µm$^2$ of this novel material (i.e. the total surface area is only 64 µm$^2$). Determine the dimensions of the box that will give the largest volume that he can get from this material. (35 marks)

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During the Covid-19 outbreak, the global Personal Protective Equipment (PPE) market has been growing at a rapid pace. A local company producing PPE kits, such as masks and gloves, wants to predict its sales only for gloves. Forecast the demand of gloves for each time period, including May 2021, using the Naive approach and exponentially smoothing with a smoothing constant parameter of 0.6. Assume that the initial forecast equals the initial demand. Apply Regression analysis to forecast demand in June 2021. Period Demand (Boxes) Sum of the numbers in your student ID Nov. 2020 5500 Dec. 2020 6500 0-18 Jan. 2021 7800 19-23 Feb. 2021 24-26 March 2021 11800 27+ The initial demand with * depends on the student ID: 5700 5300 4350 6200 A recently founded factory manufacturing electronic components for a medical surgery robot has been having difficulty managing quality-related problems. Hence, industrial engineers working at the quality management department have decided to implement a statistical control chart in one of its processes. Based on the collected data illustrated in Table 1, set up an X-R control chart and determine the control limits for the control chart(s) for the seven samples with a size of four. Is the process under control or not? Sample Observations 2 5 9 7 x1 0.11 0.25 0.14 0.29 0.19 0.25 x2 0.22 0.24 ... 0.16 *** 0.23 x3 0.31 0.22 0.31 0.22 ... 0.27 0.55 x4 ... 0.19 *.. 0.19 0.25 0.33 ... Sum of the numbers in your student ID *** 0-18 0.17 19-23 0.28 24-26 0.41 27+ 0.21

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nathaniel p.