In the figure, block 1 of mass m1 slides from rest along a frictionless ramp from height h = 2.8 m and then collides with stationary block 2, which has mass m2 = 2m1. After the collision, block 2 slides into a region where the coefficient of kinetic friction μk is 0.45 and comes to a stop in distance d within that region. What is the value of distance d if the collision is (a) elastic and (b) completely inelastic?Another question is hard to type so I have attached the original question's picture. The picture for the first question is also attached.

Two identical small metal spheres with q1 > 0 and |q1| > |q2| attract each other with a force of magnitude 71.3 mN when separated by a distance of 1.39 m. The spheres are then brought together until they are touching, enabling the spheres to attain the same final charge q. After the charges on the spheres have come to equilibrium, they spheres are separated so that they are again 1.39 m apart. Now the spheres repel each other with a force of magnitude 17.112 mN. What is the final charge on the sphere on the right? The value of the Coulomb constant is 8.98755 × 109 N · m2 /C 2 . Answer in units of µC. There are 22 questions in the attached file that needs to be completed. Please show your work.

PH221 – Week 5 LabInterference and DiffractionWelcome to the Lab component of Physics II. All our labs use simulation applications of real laboratory equipment that are combined with measurement and graphing tools to allow you to explore, observe and analyze experiments. Each week you will complete one laboratory exercise using a virtual lab application and then use your results to write a formal lab report. Each experiment will be based around one main topic.For this week’s lab you will use the Interference and Diffraction simulation. Download and read the following user guide to familiarize yourself with the simulation.Download the instructions for two laboratory activities you will complete this week. You may wish to print them out and use to collect and organize your results.Interference and Diffraction LabUse the answers to the laboratory questions to help you write your lab report. Your report will focus on Parts I and II of the lab. You should discuss the results obtained in the single vs. double slit experiments.The lab report will have the following six sections. Include section headings in bold at the beginning of each section.1.Introduction – Explain the purpose of this laboratory and what results you expect to see in this experiment.2.Background – Discuss the concepts that form the foundation for this lab. You should address what you learned from the weekly lectures and readings that are related to the lab.3.Methodology – Describe the apparatus that was used in the experiment(s) and how it was used in performing the experiments. Also explain what tools were available within the laboratory that allowed you to collect or analyze the data.4.Data – Enter the data that you collected in the lab. You can use screen shots from the Data Table within the Pivot Interactives labs. Data should be clearly labeled with physical quantities and units.5.Analysis – Analyze your results. If your Data Table included Calculated Columns, then the equation you used in those calculations should be included and described here. Any graphs created with the data go in this section, as well as your interpretations of their meaning. Were your results consistent with your original expectations? 6.Conclusion – Provide a concise summary of the results of your experiment(s) – what you did, what you found and what it means. Speculate on possible sources of experimental error and/or uncertainty within the experiment. Describe an additional experiment that could be run with this equipment to expand on what you’ve learned OR explain how you could use this equipment to answer another real-world problem..PH221: Rubric for Laboratory Assignment 5 OVERRIDE GRADE OF 1:If a PDF file is used, name and GID must be on each page.All of most of the screenshots are missing.Screenshots lack a time stamp (when indicated)Lab worksheet file(s) not submitted along with the lab report.The following screenshots required with a computer timestamp included:- Screenshot of Double Slit experiment (Part I)- Screenshot of Single Slit experiment (Part II)Lab ReportThe lab report should focus only on the experiments found on Parts I and II of Interference and Diffraction of Light Lab.Introduction10The purpose of the lab is clearly stated and is aligned with the lab objectives. Expected results are proposed.8The purpose of the lab and expected results are stated and consistent with the assignment.6The purpose of the lab and expected results are stated but lacks clarity or is not consistent with the assignment. 2The stated purpose is not aligned with the lab objectives or missing key elements.0The introduction is missing.Background10The concepts that form the foundation of the lab are discussed. Reference to the weekly lectures or readings are made.8Concepts that underly the lab are discussed, but no reference is made to the weekly lectures or readings.6Concepts that relate to the lab are discussed but are vague or contain minor errors.2Underlying concepts are described but reveal major errors in understanding.0The background was not addressedMethodology-Include a screenshot of the interference and diffraction apparatus and description of how it works.10Methods, materials and equipment are specifically described using proper terminology. Concise, but detailed, procedure is provided.8Methods, materials and equipment are described, and a detailed procedure provided, but minor errors in terminology or descriptions are made.6Materials, methods and equipment are described, and a procedure provided, but they are too brief or vague to easily follow.2Some materials, methods and procedures are described, but they are not coherent or missing major pieces.0The methodology was not provided.DataInclude:- Screenshot of Double Slit experiment (Part I)- Screenshot of Single Slit experiment (Part II)20Adequate data is collected in the lab is presented in a logical way that is organized and clear. Data is relevant to the purpose of the lab. Tables and observations are complete, clearly labeled, and physical quantities and units are given when appropriate.15Adequate data is provided and relevant to the purpose of the lab, but with minor errors in labeling or units. Tables and observations are complete and generally include captions and units.10Relevant data is provided, but it is not adequate to address the purpose of the lab or contain errors or omissions so that it is difficult to derive useful information from the data.5Data provided is not relevant to the purpose of the lab. Data is not organized or major errors in labeling and units appear throughout.0Little to no organization of the data was present. Lacks data.AnalysisInclude:- Table 1 – Double Slit Diffraction with calculated values included- Table 2 – Single Slit Diffraction with calculated values included20Data is analyzed appropriately, and key results are presented in a logical sequence. All required calculations are included. Sample calculation(s) are provided to show how the calculations were done. All variables include units when appropriate.15Data is analyzed, but with some details missing. All required calculations are included but with minor errors.10Data is analyzed, but with key details missing or inaccurate. One of the required calculations is missing or major mistakes made in the calculations.5Data analysis is included but does not include the required calculations or major errors in the calculations are made.0Date analysis is lacking.Conclusion30Conclusion contains a concise summary of the results, speculates on the possible sources of error and uncertainty in the lab, and proposes an experimental extension of the lab or applies its concepts to a real-world situation.20Conclusion is provided, but only two of three elements are well addressed.10Conclusion is provided but only summarizes the results. 5A conclusion is provided, but does not communicate useful information about the results, sources of error or possible laboratory extensions.0A conclusion was not provided