Numerade

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Copy of Energy Practice: Height Predictions with a Superconducting Puck Individual Assignment Progress: 2/13 Answered? Score: 1/10 (10.00%) Save & Close Submit for Grading 1. In this activity, you will need to predict the maximum height of a puck based on measurements from the video and calculations. • Saved @ Watch the video for trial 15. What observations, equations, and physical principles do you know that could be helpful in predicting the height the puck will reach? Try to list at least three. BIUX, X = • Measuring the initial velocity • Measuring the acceleration • Potential/Kinetic energy 2. What principle or model will you apply so you can predict the height to which the puck will slide? Newton's laws and kinematics Conservation of energy Conservation of momentum Submit Answer 2/? submissions used Score: 1/1 @

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Which of the following is NOT one of the 10 basic emotions identified by Carroll Izard? A Joy B Guilt C Contempt D Shock

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Find the least squares regression line for the following set of points in $\mathbb{R}^2$: \\ $(2, -1)$, $(6, 1)$, and $(-1, -3)$. \\ Let the regression line be given by $\bar{y} = m\bar{x} + b$. Enter the values for $m$ and $b$ below. $m = $ $b = $

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(1 point) For each sequence $a_n$, find a number $k$ such that $\lim_{n \to \infty} n^k a_n$ is a finite non-zero number. Then use the Limit Comparison Test to determine whether the series $\sum_{n=1}^{\infty} a_n$ converges or diverges. $a_n = (7 + 4n)^{-5}$ k = $\sum_{n=1}^{\infty} a_n$ ? $a_n = \frac{5}{n^2 + n}$ k = $\sum_{n=1}^{\infty} a_n$ ? $a_n = \frac{4n^2 + 5n + 4}{6n^3 + 6n + 4}$ k = $\sum_{n=1}^{\infty} a_n$ ? $a_n = \left(\frac{4n^2 + 5n + 7}{6n^3 + 6n + 4\sqrt{n}}\right)^9$ k = $\sum_{n=1}^{\infty} a_n$ ? Converges Diverges Note: In order to get credit for this problem all answers must be correct.

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b Given dP/dt=3P1-P/5 (i) determine the order of the DE ii) name the independent and dependent variable iii state whether the DE is linear or nonlinear (c) Given 5x"(t) + 7x(t) - 9x(t) = 2t3 (i) determine the order of the DE. ii name the independent and dependent variable (iii) state whether the DE is linear or nonlinear. Problem 2. (4 points) Verify that the function 2et Pt= 1+2et is a solution for dP dt

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25 pts 4) TOUT A B 250 N 2000 N C $\overline{AB} = \overline{BC} = 80 mm$ SHAFT DIAM = 14mm SHAFT MAT'L = CARBON STEEL MASS OF GEAR B = 0.7 kg a) CALCULATE THE SHAFT DEFLECTION AT THE SPROCKET B LOCATION. b) CALCULATE THE CRITICAL SPEED OF THIS SHAFT, THE SHAFT MASS MAY BE CONSIDERED NEGLIGIBLE.

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9. (10 points) Trace all the steps for heap sort to sort given numbers in increasing order. Please show both the CBT (or heap) and the corresponding array at every iteration. Array (given) 2 7 4 5 8 3 1 (1)(step 0) After building up heap (i.e., initial heap) (1)(steps 1 & 2) After swapping (2)(step 0) After percolating down (2)(steps 1&2) After swapping (3)(step 0) After percolating down (3)(steps 1&2) After swapping (4)(step 0) After percolating down (4)(steps 1&2) After swapping (5)(step 0) After percolating down (5)(steps 1&2) After swapping (6)(step 0) After percolating down (6)(steps 1&2) After swapping

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1. Write the equilibrium expression for the oxidation of hydrogen to form water vapor. 2H2(g) + O2(g) ? 2H2O(g) Express for Kc = Conc of products / Conc of Reactions Kc = [H2O]^2 / ([H2]^2 [O2]) 2. Write the equilibrium expression for the formation of nitrosyl bromide. 2NO(g) + Br2 (g) ? 2NOBr(g) 3. Write the equilibrium expression for the following reaction: NO(g) + O3(g) ? O2(g) + NO2(g) 4. Write the equilibrium expression for the following reaction: CH4(g) + Cl2(g) ? CH3Cl(g) + HCl(g) 5. Write the equilibrium expression for the following reaction: CH4(g) + H2O(g) ? CO(g) + 3H2(g) 6. Write the equilibrium expression for the following reaction: CO(g) + 2H2(g) ? CH3OH(g) 7. Write the equilibrium expression for the combustion of ethane at high temperature. 2C2H6(g) + 7O2(g) ? 4CO2(g) + 6H2O(g) 8. Write the equilibrium expression for the decomposition of ethane. C2H6(g) ? C2H4(g) + H2(g)

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In this implementation, the recursive method "private String prettyPrint(int indentationLevel)" is used in the manner described by the comments. This is a recursive helper method for the public String prettyPrint method in the File class. Hint: useful methods and classes include StringBuilder and String.repeat(). NOTE: Due to limitations in MyTutor, JUnit assertion messages cannot be shown over multiple lines. This poses an issue when we need to show you the expected output which needs to be over multiple lines. When you see "[NEWLINE]" in an assertion message, it actually means "\n" (i.e. newline character in the file). We can't use "\n" though due to the limitation noted above. (yes we understand this is not ideal, but MyTutor cannot be updated right now) 27 28 29 30 31 32 33 34 35 36 37 38 39 0 1 12 3 T 5 16 7 8 19 50 51 52} 53 /* * Returns a multi-line string representing this file and, recursively, * all of its sub-files. * The indentation level should increase for every sub-file, as shown below. * Each level of indentation should be represented by two spaces * The last character of the final string should always be a line separator ("\n"). */ root dir1 dir2 subdir Hello.java dir3 myfile.txt another.png @param indentationLevel level of indentation to use before printing the file's name @return formatted multi-line string representation of this file */ private String prettyPrint(int indentationLevel) { // write your code here } package recursionfilesystem; import java.util.LinkedList; import java.util.List; /** Represents a single file or a single directory (containing other files). */ public class File { String name; // name of the file List<File> contents; // list of sub-files public File(String name) { this.name = name; this.contents = new LinkedList<>(); } void addFile(File file) { this.contents.add(file); } /* See Javadoc for prettyPrint(int) */ public String prettyPrint() { return prettyPrint(0); } }

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1. Consider the data for each of the following four independent companies. Calculate the missing values in the table below. For margin and ROI, enter your answers as percentages, rounded to two decimal places. For example, the decimal value .03827 would be entered as "3.83" percent. For turnover, enter your answer as a decimal value rounded to two decimal places. A B C D Revenue $12,500 $49,000 $96,000 Expenses $10,000 $90,240 Operating income $2,500 $14,700 $ Assets $50,000 $48,000 $9,500 Margin % 30 % % 6.00 % Turnover 0.50 2.00 ROI % % % % 2. Assume that the cost of capital is 9 percent for each of the four firms. Compute the residual income for each of the four firms. If the residual income is negative, enter a negative amount. A's residual income B's residual income C's residual income D's residual income

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derek v.