Physics

Please write ONLY the introduction for this Exergy and Exergy analysis report. Please site your sources

Write a two-page paper double space that answers the following questions. Any graphs or data that are included does not count towards the required two pages. 12pt font should be used with a one-inch maximum margin. This lab is about CAT/PET Scans. Describe the physics as to how each machine operates! How are they different? How must one prepare for a scan? Why is the procedure for each including the patient’s preparation? What do the scans detect? What are they not used for? Can both scans be taken on all parts of the body? Is the image 2D or 3D? Color or black and white? What is the typical cost for each scan? If you had one, please share your experience.

A window washer pulls herself upward using the bucket-pulley apparatus. How hard must she pull downward to raise herself slowly at constant speed? The mass of the person plus the bucket is 74 kg. I calcuated this by multiplying (74 kg)(9.81 m/s/s). Now, If she increases this force by 13%, what will her acceleration be? […]

From a constructed Rube Goldberg Machine, qualitatively and quantitatively analyze steps in the machine. Provide references to principles of conservation of energy and momentum, provide equations and calculations to describe the transfers of energies in the steps and between steps. Algodoo program (free official download) required to view machine .phz file. Visit algodoo(dot)com(slash)download for Windows and Mac download. When the file loads, adjust zoom to see entire machien and press play. See Rubric for assignment requirements. I cannot upload .phz file to this website, please let me know how to send this to you.

video 1 https://studentuml-my.sharepoint.com/personal/androniki_mitrou_student_uml_edu/_layouts/15/onedrive.aspx?id=%2Fpersonal%2Fandroniki%5Fmitrou%5Fstudent%5Fuml%5Fedu%2FDocuments%2FExperiment%206%2Emp4&parent=%2Fpersonal%2Fandroniki%5Fmitrou%5Fstudent%5Fuml%5Fedu%2FDocuments&originalPath=aHR0cHM6Ly9zdHVkZW50dW1sLW15LnNoYXJlcG9pbnQuY29tLzp2Oi9nL3BlcnNvbmFsL2FuZHJvbmlraV9taXRyb3Vfc3R1ZGVudF91bWxfZWR1L0ViVjdGWGEwSTNkRmpnWmt3cVNyMDU4QkJDLXo1YmlpYXRtOTBIbmwxODlHd0E_cnRpbWU9czB2cFNCSTYyRWc video 2 https://www.youtube.com/watch?v=TqJFIBODrjM Lab Report The lab report must consist of the following 5 parts as any further required parts as outlined in the lab instructions. Your lab report must reflect strictly your individual efforts. A) Cover Page with Objective(s) Your Name Course Number and Section Number Lab Partners: Date Experiment was performed Title of Experiment Objective(s): A few sentences describing the primary goal(s) of the experiment. B) Brief Introduction Consists of the theory that will be utilized to conduct the experiment and analyze the results. Briefly describes the steps taken to obtain results. Please use your own words, a copy of the lab instructions is not acceptable. C) Results and Analysis Includes all measurements taken and analysis performed. D) Discussion Discuss and explain your results by comparing them with the theory. E) Conclusions Your conclusions should summarize (in a few sentences) what can be deduced from your measurements (refer to the physical principles involved) and explain how your results meet the objectives of the experiment.

We are going to explore simple harmonic motion through the PhET Pendulum Lab to find out the relationship between the mass of the bob, the length of the string, the period of the pendulum, and the total energy of the system with respect to the variation of the released angle. Open the PhET “Pendulum Lab” Interactive Simulation at: https://phet.colorado.edu/sims/html/pendulum-lab/latest/pendulum-lab_en.html Use the attached Excel worksheet for this unit. Save all of your work directly to the worksheet. See the attached instructions to access the details for this activity.

Space weather is the study of how the space surrounding the Earth is affected by the sun’s violent activities such as coronal mass ejection, the influx of solar wind, and the eruption of a solar flare. If extremely high, these activities could paralyze GPS systems, electric power transmissions, and satellite communications. If you are in charge of a space weather forecasting team, propose your future plan to prevent the catastrophic impacts. Your response must be at least 250 words in length. No references or citations are necessary.

Can you do My physics assignment. Here is the link you need to use for screenshots wherever it asks for – https://phet.colorado.edu/sims/html/molecule-shapes/latest/molecule-shapes_en.html MAKE SURE YOU DO THE FOLLOWING AS WELL – 1. Include units with your answers when needed. 2. Provide the necessary screenshots with date and time. 3. Explain your answers (Just yes or no is not enough) 4.Please type your answers in the yellow shaded spaces. Do NOT alter the Yellow shaded spaces and any formatting. For the screenshots please use the central time please (US & Canada). Make sure your screenshot looks like the example picture which is in the files

The lab report must consist of the following 5 parts as any further required parts as outlined in the lab instructions. Your lab report must reflect strictly your individual efforts. A) Cover Page with Objective(s) Your Name Course Number and Section Number Lab Partners: Date Experiment was performed Title of Experiment Objective(s): A few sentences describing the primary goal(s) of the experiment. B) Brief Introduction Consists of the theory that will be utilized to conduct the experiment and analyze the results. Briefly describes the steps taken to obtain results. Please use your own words, a copy of the lab instructions is not acceptable. C) Results and Analysis Includes all measurements taken and analysis performed. D) Discussion Discuss and explain your results by comparing them with the theory. E) Conclusions Your conclusions should summarize (in a few sentences) what can be deduced from your measurements (refer to the physical principles involved) and explain how your results meet the objectives of the experiment.

Magnetic Field Due to Current in Wire Lab – Virtualhttp://www.thephysicsaviary.com/Physics/Programs/Labs/FieldFromWire/index.htmlBackground:Hans Ørsted accidentally discovered the fact that electric currents create magnetic fields when he was working with an electric circuit and noticed that, when current was flowing in the circuit, the need of a compass on his desk would deflect. Thus began the investigation of the nature of magnetic fields produced by currents.Instructions:Open the web page listed at the top of this lab. Click “Begin”. When you do, you will see a screen that has a long gray wire with small blue circles moving to the right (representing the flow of charge). There are many concentric circles around the wire, representing the magnetic field produced by the wire. A small black bar sticking out from the top left represents a magnetic field sensor. The “+” sign at the right side of the black bar is the point on the sensor where it takes data.Experiment 1: Dependence of Horizontal PositionOpen excel or your favorite spreadsheet program (Google sheets, whatever).Click “Location of Field Sensor”. Doing so opens a tab that has four arrows: up, down, left, and right. Clicking these arrows allows you to move the sensor around.Click “Field Strength” in the top right of the panel. This gives the strength of the magnetic field in microTesla (?T).Make sure you measure the field strength in Tesla, not microTesla. So if the measured strength is “5.1?T”, your measured value should be “0.0000051T”.Brief note on magnetic field strength values that fluctuate: in real life, when measuring values with something like a magnetic field strength sensor, the measured value may fluctuate. For our purposes here, look at the digit to the right of the decimal point and round to the average value of that digit. For example, if you see values such as 12.41 ?T, then 12.32 ?T, then 12.53 ?T, round to 12.4 ?T, then convert to Tesla.Move the field sensor all the way to the left and leave its vertical position unchanged.In your spreadsheet, make two columns:Column 1 is “Horizontal Position”Column 2 is “Field strength”Set the initial position of the horizontal position to be 0.005m and take the measured field strength at the position.Move the field sensor to the right (you may assume each step is 0.005m) and not the field strength for each position. You should make 17 steps for a total of 18 different horizontal positions. Each of these positions will have a measured field strength.Graph your data of Field strength vs. horizontal position, making sure you create a complete graph (axis labes, axis units, title, etc.). What do you notice about the trend in your graph? What does this imply about the dependence of field strength on horizontal position near a long wire carrying currentExperiment 2: Dependence on radial positionMove the sensor to the farthest right position, then down as close as possible to the wire. You may assume that this position is 0.01m from the wire.Create a second set of two columns on your spreadsheet:Column 1 is “Radial Distance”Column 2 is “Field Strength”Note the position and field strength for this initial position in your spreadsheet.Move the sensor one space up away from the wire (you may assume that the step size is 0.005m). Note the field strength. You should be able to measure the strength of 15 total positions, including the initial position.Graph your data of Field strength vs. radial distance, making sure you create a complete graph (axis labes, axis units, title, etc.). What do you notice about the trend in your graph? What does this imply about the dependence of field strength on radial distance near a long wire carrying current?Aside: Linearizing your dataAs you can probably see, the graph of your data from experiment 2 does not fall on a straight line. Inspection of the shape of the graph shows that your data fall on a 1/x dependence. In order to linearize your data, do the following steps:Copy your position data in meters into a new column.Make a second column next to this where each value is the reciprocal of the position in the first column.For example, if your position value is 0.04m, the reciprocal value will be 1/0.04 = 25Once you have completed this second column of reciprocals, copy your original field strength values into a third column to the right of this one.This means that ever field strength value is next to the reciprocal of the original position as opposed to being next to the original positionGraph your field strength versus the reciprocal position data. What shape does this graph have?Add a trendline to your graph. Display the equation of the trend line. The trendline will have a format “y=mx +b”, where “m” is the slope of the trendline. Copy this value into your notes.Why did we do all this? Because the equation of for the magnetic field strength due to a current in a wire is given byWhere B is the field strength in Tesla, I is the current in Amperes, and R is the radial distance from the wire in meters. If we lump everything together on the right side other than the radial distance, we getWhich, if plotted on a graph, would yield a straight-line graph if you plot B vs. 1/R and “m” would be the slope of that line. That meansthatWhich we can use to solve for the current in the wire. Take the value of the slope from your linearized graph above (the value you got from your equation of the trendline) and use the equation above to solve for the current I. Then, go back to the simulation and click on “current” in the bottom right corner. Calculate the %difference between your value and the value used in the simulation.Experiment 3: Dependence on currentPlace the sensor all the way to the right and 8 steps above the wire (corresponding to a position of 5cm = 0.05m away from the wire.If you cannot already see the value of the current, click on “current” in the bottom right corner to display the current. Click the down arrow until the current is 0.0A. Your sensor should read a field strength of 0?T.Use the up arrow to increase the current by one step. Record the current and field strength in your spreadsheet.Continue until you have maximized the current. There should be 9 total values above 0.0A. Record the corresponding field strength values in your spreadsheet.Graph the field strength vs. current data. What trend do you see?As you increase the current, the circles around the wire get darker. What does this indicate?