Questions asked
Problems 32 A simple model of the mass distribution of a pole vaulter is given in Fig. 5-21. The pole vaulter is shown at the high point in the jump, at which point the mid- section of his body is just over the bar (at the origin). (a) Find the center-of-mass coordinates of the pole vaulter's body. Treat the rectangles as uniform dis- tributions of mass. The center of mass of each rec- tangle is indicated by a dot, next to which is the mass of the rectangle. (b) If the center of mass is at an elevation of 5.10 m. what is the height of the bar? 30.0 6.00 kg 20.0 20.0 kg 14.0kg O 10.0 -30.0 0 -100 10.0 20.0 30.0 6.00 kg --10:0 18.0 kg -20.0 -30.0 5.00 kg 40.0 -50.0 -60.0 11.0kg -70.0
Identify the line of discontinuity: \[ f(x, y)=\ln |x+y| \] \( \square \)
Under the five-step revenue recognition model, a contract can be written, verbal, or implied. True or False True False
What would you seek if you want to study the components of the abiotic environment? O Predators O Pollinating species O Seasonal temperatures O All living species
- Comunicación 3. Escribe un número decimal comprendido entre las parejas dadas. a. 0,5 y 0,51 b. 0,81 y 0,82 . c. 0,107 y 0,108 d. 1,365 y 1,366 e. 2,8 y 2,9 f. 3,01 y 3,011 g. 9 y 9,1 - h. 0,9 y 1,1
Exercise 4 This exercise involves Python programming. Please write your answers to this question in a new Jupyter notebook. Export your work to a PDF using the steps outlined in Lab01. Ensure you merge this PDF with the PDF containing your responses to the previous questions before submission. (Refer to the instructions provided at the beginning of this homework assignment for guidance.) As you did in Lab for tasks, please include the question number in a Markdown cell. Using the information from Exercise 3 of this homework, simulate 10,000 randomly picked persons and record the time spent on their phone in a day. Hint: Use the help file of the scipy . stats module seen in Lab05 to find the appropriate function for a normal distribution. Draw the histogram representing the distribution of the time spent on the phone by the 10,000 randomly picked persons. Hint: Use the matplotlib module seen in Lab04. Compute the mean and compare it to the parameter of the normal distribution. Comment on it in a cell. Hint: see Lab04. Exercise 4 This exercise involves Python programming. Please write your answers to this question in a new Jupyter notebook. Export your work to a PDF using the steps outlined in Lab01. Ensure you merge this PDF with the PDF containing your responses to the previous questions before submission. (Refer to the instructions provided at the beginning of this homework assignment for guidance.) As you did in Lab for tasks, please include the question number in a Markdown cell. 1. Using the information from Exercise 3 of this homework, simulate 10,000 ran- domly picked persons and record the time spent on their phone in a day. Hint: Use the help file of the scipy.stats module seen in Lab05 to find the appropri- ate function for a normal distribution. 2. Draw the histogram representing the distribution of the time spent on the phone by the 10,000 randomly picked persons. Hint: Use the matplotlib module seen in Lab04. 3. Compute the mean and compare it to the parameter of the normal distribution. Comment on it in a cell.Hint: see Lab04
Among people alive today, approximately what percentage of the nonAfrican genome has its origins in Neandertals? A) 50% B) 2% C) 20-25% D) 0%
8 5 points A student needs to prepare 42.7 mL of a 1.85 M aqueous $H_2O_2$ solution. Calculate the volume in mLs of 4.3 M $H_2O_2$ stock solution that should be used to prepare the solution. Type your answer....
Problem 2: Show for a quantum harmonic oscillator initially in the state given by (, t = 0) = cos0/o(+sin01() that (x)(t) = coswt cos0 sin0 V2e the table below u H,(n) /n(n) 4f o2L 3pn(x) En 0 1 hw/2 1 2n 3hw/2 V2eVa 2f e i22 2 4n2 2 Vsvm(4n2-2) e tn Vsev42 -2e22 5hw/2 3 8n3 - 12n 4f 3(uZI-gl8)=^sv ase83-12e 7hw/2
7. Determine the molar enthalpy of reaction for PCl$_3$(l) (3 marks) 2 PCl$_3$(l) + O$_2$(g) + 4 HCl(g) \(\rightleftharpoons\) 2 PCl$_5$(s) + 2 HOH(l)
