Lab Exercise :Acceleration Science Assignment Help. Lab Exercise :Acceleration Science Assignment Help.
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I just need the lab report, I can do the calculations. Not Too good at writing and putting my work together.
Lab Exercise 2: Acceleration
- Follow the instructions and directions below for this lab. Disregard the outline in the manual for your LabPaq Kit.
- Read this document entirely before starting your work.
- Do not forget to record your measurements and partial results.
- Submit a Laboratory Report through Moodle, as shown in the last section of this outline. Remember that the Laboratory Report should include the answers to the questions below.
GOAL
To calculate the acceleration of an object rolling down an inclined plane.
INTRODUCTION
Acceleration is the change in the velocity of an object. Velocity is a vector quantity with both direction and magnitude. Acceleration is also a vector quantity with both direction and magnitude. If the speed of an object is changed, that object has accelerated either positively or negatively depending on whether it increased or decreased in speed. Another way to accelerate an object is to change its direction of movement. This means that a car going around a corner is undergoing acceleration because its velocity in terms of direction is changing even if the car’s speed, as seen on the speedometer, is constant.
As discussed above, an object falling under the influence of gravity accelerates. From your studies, you can recall the key kinematic equations for the uniformly accelerated motion of an object starting from rest, where v = velocity, a = acceleration, and d = distance.
Using these equations it is then possible to solve for the unknown variables.
In this lab experiment, we will measure the time it takes for a marble to roll down an inclined plane. From the experimental data, we will then estimate the value of gravity (g).
PROCEDURE
Set up a ramp as shown in Figure 1 that will be our inclined plane. Depending on the distance of your ramp, mark intervals of 40 to 60 cm. For example, in Figure 1, the marks are at 50 cm. Ideally, the marks should be as separated as possible in order to obtain a better reading. The height of the ramp is also going to play a role in the accuracy of your measurements. The steeper the slope is, the ball will run down faster and will make measurements less accurate. Before starting with the measurements, you may want to run some trials in different conditions.
Figure 2: Experimental setup
Figure 2 shows the setup used by a student who did this lab some time ago. In this case, the marks are spaced 40 cm. This experiment works best with gentle angles of elevation. You may get better result if you use a smaller slope than Figure 2 shows. The recommended angles should be around 5 degrees, 10 degrees, and 15 degrees. You also need to record the angle of the inclined plane making a plumb line with the protractor as shown in Figure 3. The angle of elevation from this protractor is around 120.
Figure 3: Measuring the angle of an inclined plane
Measuring Time
Our procedure will consist of dropping the marble at the top of the inclined plane and measuring with the stopwatch the time it takes to reach each one of the markings, starting with the closest to the point where you release the marble. Using the example shown in Figure 1, we will first measure the time it takes for the ball to go from 0 cm to 50 cm. As we learned in Laboratory Experiment #1, it is always good practice to repeat the measurements several times (in our case 5 times) to reduce errors.
When we have taken and recorded the 5 trials for this first measurement, we will proceed by repeating the experiment but in this case measuring the time that it takes for the ball to reach the second mark (in the example of Figure 1, it will be from 0 to 100 cm).
Equations used for this experiment
The known variable in this experiment is the distance between the marks. The measured variable in this experiment is the time it takes for the ball to travel a specified distance.
For a body undergoing accelerated movement, the equations that we will use are:
INITIAL PARAMETERS
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What is the distance between two marks in your inclined plane? |
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What is the angle of your inclined plane with respect the horizontal? (0° would mean the inclined plane totally horizontal, so the ball would not move; 90° would mean the board totally vertical) |
Write down these two values in the table we will use to record all our measurements. It will also be used at the end of the lab.
EXPERIMENTAL RESULTS
When we are finished with this experiment, we will have all the data in our table complete. We will, however, complete the table step by step.
At this point, we will measure the time that it takes from the ball to travel from the release point to the first marking. Insert this distance in the appropriate column in the table below. Note that the distance should be the same for all the 5 trials in this first step. For example, if the distance between markings is 50 cm, d should be equal to 50 cm and so on.
Because we are here only concerned with the time between the release point and the 1st marking, we can ignore the shaded section of the table.
Repeat these measurements 5 times, recording the time it took for the ball to reach the first marking.
Using the equations from Step 3, calculate the velocity and the acceleration. Calculate and record the Average and Standard Deviation of time, velocity and acceleration.
Repeat the previous step, now measuring the time that it takes for the ball to travel from the release point to the second marking. Complete the unshaded part of the table below. Keep in mind that d2 should be the double of d1.
Once again, measure the time and calculate velocity and acceleration. Calculate also the Average and Standard Deviation of your measurements.
Repeat the same procedure, now measuring the time it takes for the ball to reach the 3rd marking. Complete the time below, taking into account that the values for the first and second markings are the same as you calculated in Steps 1 and 2.
If your inclined plane allows it, you may want to repeat the process for a 4th marking.
At this point, you should have all the data in the table completed.
ANALYSIS OF RESULTS
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Newton’s first law says a body at rest will remain at rest unless acted upon by an outside force, and a body in motion will continue in motion at the same speed and in the same direction unless acted upon by an outside force. What forces were acting on the marble as it traveled down the ramp? |
QUESTION 3 |
Did the measured acceleration was about the same for the three (or four) sections of the experiment (Release point to 1st marking, to 2nd marking, etc) ? |
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Do you expect this acceleration to be constant or different for the three (or four) sections of this experiment? Explain your reasoning. |
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By looking at the Standard Deviation results for the calculated acceleration, which section of this experiment is the more precise? Explain your reasoning. |
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What was the average value of acceleration for the most precise section of this experiment? |
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Intuitively, we can understand that the velocity (and therefore the acceleration) of the ball will increase as we increase the angle of the inclined plane. We can make the assumption that the acceleration of the ball is equal to: Expected acceleration = (5/7)gsin(θ) where g=9.8 m/s2
The angle of the inclined plane is the value that you measured in Question 2 and transcribed into the table. Using the measured value of the angle of the inclined plane, calculate the expected value of the acceleration. |
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Calculate the relative error between the measured value of acceleration (from Question 7) and the expected value of acceleration (from Question 8). |
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What do you think are the elements that may contribute to increasing this error? How would you solve them? |
Create a laboratory report using Word or another word processing software that contains at least these elements:
- Introduction: what is the purpose of this laboratory experiment?
- Description of how you performed the different parts of this exercise. At the very least, this part should contain the answers to questions 1-10 above. You should also include procedures, etc. Adding pictures to your lab report showing your work as needed always increases the value of the report.
- Conclusion: What area(s) you had difficulties with in the lab; what you learned in this experiment; how it applies to your coursework and any other comments.
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teams will present their analysis of the course research project, Writing Assignment Help
TEAM RESEARCH PROJECT: INT 601: The team research project is assessed by the instructor in class and reflect Research and Quantitative Literacy.
TEAM RESEARCH & ANALYSIS PROJECT (1)
RESEARCH TOPIC: NUTRITION HABITS AND THE HOMELESS
PLEASE INCORPORATE ARTICLE: YOU HAVE 3 ARTICLES ON THIS CITE: http://www.ncbi.nlm.nih.gov/pmc/articles/pmc1580272/pdf/pubhealthrep00189-004.pdf
Article should be the METHODOLOGY: There are 3 articles and they should be incorporate to the document
KINDLY INCORPORATE THE ARTICLES: APPROXIMATELY 4-5 PAGES IS DUE IMMEDIATELY. ALL WORK NEED TO BE CITED.
PLEASE DO NOT USE ANY CITATION FROM .COM
WHAT IS NEEDED: APA FORMAT; ABSTRACT; INTRODUCTION, CITATION, RESEARCH QUESTIONS, MIX METHODOLOGY; RECOMMENDATION, REFERENCES
Discussions: Teams will present their analysis of the course research project, including the field work, in class labs, and the team’s analysis of the interview and Survey data. Teams will prepare to discuss:
- The purpose and relevance of the topic
- The qualitative version of the research questions,
- The findings of the analysis and coding of the interview data and the steps taken to ensure the trustworthiness of the data,
- The quantitative version of the research question (Hypothesis sets),
- The results of the tests and measurements and the steps taken to ensure the validity and reliability of the results, and
- The conclusions, recommendations, and implications
WRITIING ASSIGNMENT: NO2 DUE BY NEXT THURSDAY: 8-10 PAGES NEEDED; APA FORMAT NEEDED! INCLUDING CITATION. PLEASE DO NOT USE .COM FOR REFERENCES. ORG, HTML, EDU ETC CAN BE USED.
RESEARCH TOPIC: PLEASE CHOOSE ONE OF THESE TOPICS
(A) ISULIN RESISTANCE AND TYPE 2 DIABETES; SHOULD IT BE THE CAUSE OF OTHER MEDICAL CONDITIONS AND WILL EXERCISE BE HELPFUL?
- (B)HIV/AIDS: SHOULD PREVENTIVE MEASURES BE EXTENDED TO THIRD WORLD COUNTRIES? WILL IT BE AFFORDABLE?
(C) POOR EATING DIET & OBESITY AMONGST AFREICAN ADULTS AGES 18-25; EVALUATING THE RELATIONSHIP BETWEEN HEALTHY AND UNHEALTHY DIET. SHOULD HEALTHY DIET/MEAL BE INTRODUCE IN SCHOOLS AND COLLEGES?
WHAT IS NEEDED: ALL WORKS MUST BE CITED; APA FORMAT; ABSTRACT; INTRODUCTION, POPULATION; CITATION, RESEARCH QUESTIONS, MIX METHODOLOGY; RECOMMENDATION, REFERENCES.
PLEASE DO NOT USE ANY CITATION FROM .COM
NOTE: Writing Assignment
Argument & Theory: 11/2 2 pages discussing the introductory argument, discussing of the problem and statement of the research hypothesis. See the Abstract – a Argument – Introduction guide. Continue with 21/2 – e pages academic discussion of the theory used as a basis for research study. Be certain to use summation, multiple citations, and be inclusive. Finish with a figure of the theoretical model to complete the assignment.
QUALITATIVE RESEARCH METHOD. complete your participants, Population and recruiting setting, ethical considerations, outline of the research design, outline of the data analysis, append the theoretical model.
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MARKS REGISTER A NO LIABILITY COMPANY , law homework help Business Finance Assignment Help
PART 1. 15 MARKS REGISTER A NO LIABILITY COMPANY complete all the forms/ consents registers read section 117, 112(2) and all other relevant
and in part 1 decribe about directors, payholder and members how they sign but and all in 5 lines each. in terms of no liability company
i have attachted the form.
sectionsPART 2 15 MARKS WORD LIMIT:- 500 WORDSRESEARCH AND EXPLAIN THE MAINTENANCE OF CAPITAL DOCTRINE — This is a research assignment therefore there must be a Bibliography – it must be foot noted and any quotations must be in ” ” quotation marks.This research requires you to research the history and reason for it’s development and form an opinion whether it is still part of the Australian Corp Law and whether it is a necessary part of Corp Law. Your opinions must be supported by your research.
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Composition Project 1: Themes in Popular Culture, English homework help Humanities Assignment Help
Composition Project 1: Themes in Popular Culture
In examining the words of the authors we’ve read so far, we find that the timelessness of the themes they discuss is revealed in many examples of films, music, advertisements, cultural rituals and other texts. In this first project, you will choose one (or more) of the readings thus far and offer an analysis of where you see that reading’s theme manifested in an artifact of popular culture (film, TV, other works of literature, news, drama, language, fashion, music). You will compare and contrast the rhetorical purpose of that theme in the text and in the pop culture artifact, and you will construct an argument about how and for what purpose that theme is adapted in the cultural artifact that you’ve selected. This project contributes to the course goals of close reading, critical thinking, writing analytically, and integrating your ideas with those of others.
As you work through the process of composing this project, these guiding questions may help:
- What are the themes that we have read about so far?
- Where do you hear the echoes of one (or more) of these themes in artifacts of popular culture?
- Where do you see the theme surfacing in the cultural artifact you’ve chosen? For example, if you choose a piece of music that utilizes a theme similar to one found in Fitzgerald’s The Great Gatsby, be sure to analyze that piece line by line as you illustrate where Fitzgerald’s theme surfaces.
- Remember that in analyzing themes, we do not stop at the “what.”
- How is the theme manifested in the text? In the artifact you’ve chosen?
- Why do you think that theme is important to that cultural artifact?
- Is it similar or different from the purpose it holds in the text?
Your Audience
Certainly, your audience for this project is you, your classmates, and me. But consider even more specifically the fan base of the cultural artifact you’ve chosen; consider, too, those who are not or would not be fans. Are you writing to them, as well? Having a clear understanding of your audience will help you to craft your analysis and your argument effectively.
Length, Form, Documentation
•Length: 1375 words.
•Form: Academic essay, editorial, blog, journal or magazine article, newspaper article, etc.
•Documentation: sources (including images) must be cited appropriately (if you are citing music, be sure to cite line numbers, as you would a poem)
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Only needs to be 1-2 pages!
You are a finance employee at a financial institution, specializing in originating auto loans in a country where auto loans have only been available for 2 years. Your group has just been informed that a close competitor has securitized $150 million in auto loans through an investment bank.
- Your boss wants to understand why the competitor did this. Explain.
- He also wants to understand the potential benefits for the following:
- the issuer
- the investors buying the ABS
- the individual borrowers seeking auto loans
- He also wants to know the likely impact to the auto loan market in this country if a large, liquid ABS market emerges over the next few years.
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Rhetorical Analysis Essay- Kanto Earthquake Humanities Assignment Help
Discipline-Specific Rhetorical Analysis Essay
Topic: analyze a scholarly journal article on a topic in your discipline (given below). you will analyze the rhetorical choices the author has made:
- What is the larger conversation in which this text participates?
- Purpose: Why is the author writing? What is the bigger conversation?
- Claim: What is the author’s claim?
- Audience: Who is participating in this bigger conversation? What readers has the author targeted and what clues in the text indicate his or her intended audience?
- Mode, Media, Design: Where and how was the article published? Is it digital or print? How does this affect the way the article is written and how the reader receives the message?How do words, headings, and visuals and other media work together?
- Genre Conventions: How does this article reflect some of the expected aspects of a scholarly article?
- Tone: What is the author’s tone? What word choices reflect that tone?
- Use of Sources: What types of sources does the author use to support his or her ideas. How often does the writer use evidence from other sources? What citation style does the writer use to document sources? How often does the writer use direct quotes as opposed to summary/paraphrase?
- Use of Logos: How does the author use evidence or reasoning to convince the readers to accept his or her claim?
- Use of Pathos: What emotions does the writer evoke in order encourage the reader to accept his or her claim?
- Use of Ethos: How does the author establish his or her credibility/authority/trustworthiness in this article?
- In your conclusion, reflect on what doing a rhetorical analysis of this article has taught you about writing conventions in your particular discipline.
Format : essay of at least three pages. You will need to use at least two quotes from your source, and document your use of your sources using MLA Style.
TOPIC: The Great Kanto Earthquake and the Culture of Catastrophe and Reconstruction in 1920s Japan by J. Charles Schencking
link (2 are given make an account to access, or search it if you can’t) : https://www.researchgate.net/publication/236701625…
http://www.jstor.org.proxy055.nclive.org/stable/pd…
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Human Behavior @ Humanities Assignment Help
For this question I am an African American I am pretty well rounded person so for this question I can accept the different beliefs of anyone. Unless their just open and just refused to work with me . I am a person who attempt to work with anyone. I can accept your personal view even if I disagree with them. This is in relation ship to this question. Please reference Zastrow, C. H., & Kirst-Ashman, K. K. (2016). Understanding human behavior and the social environment (10th ed.), pp. 715-740. Boston, MA: Cengage Learning.
Furness and Gilligan (2010) stated, “There is a growing body of literature written predominantly for health professionals and more recently for social workers about the importance of developing and incorporating cultural and spiritual sensitivity and awareness in their work with others” (p. 2187). Spirituality, which may or may not include involvement with an established religion, contributes to human diversity and influences human behavior. An individual’s spirituality may be an important factor in his or her social environment. As a social worker, your awareness of a client’s spirituality may help increase your understanding of the client and his or her needs.
Sensitivity to and respect for your client’s spiritual dimension reflects your appreciation of diversity. As you consider the potential impact of your clients’ spirituality on their perspectives and behavior, you must also consider how your spirituality might influence your interactions with a client.
For this Discussion, you consider the impact of spirituality on your interactions with clients.
Post by Day 3 a Discussion in which you explain how considerations about clients’ worldviews, including their spirituality or religious convictions, might affect your interactions with them. Provide at least two specific examples. In addition, explain one way your own spirituality or religious convictions might support your work with a client, and one barrier it might present. Finally, share one strategy for applying an awareness of spirituality to social work practice in general.
Be sure to support your posts with specific references to the resources. If you are using additional articles, be sure to provide full APA-formatted citations for your references.
Read a selection of your colleagues’ posts.
Respond by Day 5 to at least two colleagues in one of the following ways:
- State how your colleague’s examples of spirituality’s influence in client relationships resonate with you. Provide support for your perspective.
- State whether you are likely to use your client’s strategy in your own social work practice, and explain why.
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The Comparison of the United States and China, economics homework help Economics Assignment Help
Now, it is time for you to test your knowledge of key economic indicators and the effects of economic measurements have on an economy.
The purpose of this assignment is to investigate and to gauge your understanding of key economic indicators by filling out the figure one (1) below and to write up your findings and compare and contrast the United States to that of China.
PLEASE SEE ATTACHED FOR FIGURE 1
Assignment should include the following:
- Title page
- Introductory paragraph
- Completed table inserted into your Word document
- Summary of the United States and China
- Summary must be at least 250-words or more in length
- Conclusion to summarize your findings, and
- Reference page (Reference page must be at the end of your paper and on a separate page).
Make sure to include an APA formatted title page and reference page for credible resources that you may have used for your research. Remember to follow APA guidelines when paraphrasing or quoting information. Don’t forget to cite your sources and include in-text citations as necessary.
——————————————————————————————————————
IMPORTANT THINGS TO KNOW:
- You must provide the web address links to your references/sources and cite ALL references used in the paper with quotations: “example” and underlined (for my reference).
- Make sure to write your paper utilizing proper APA formatting guidelines, and to include an APA formatted title page.
- ***A note about credible sources: Credible sources are reliable, accurate, and trustworthy. These sources are written by authors respected in their fields of study. You want to identify sources where the author of the article is listed, if they’ve referenced other information, the sources should be cited so that you can check for the accuracy of and support what they have written. Wikipedia is not considered a credible source.
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Management Information Systems, management homework help Business Finance Assignment Help
The owners of MovieFlix realize that they need to modernize their information management systems in order to make their processes run more smoothly and to solve some of their business problems.
- In a minimum of 2-3 pages, discuss a technology system that you suggest for the company:
- Include why you selected that particular database or information system and how it will help improve MovieFlix’s processes.
- Discuss the potential costs of the system to the organization and how the system will help the company to increase their revenue.
Make sure to include an APA formatted title page and reference page for credible resources that you may have used for your research. Remember to follow APA guidelines when paraphrasing or quoting information. Don’t forget to cite your sources and include in-text citations as necessary.
——————————————————————————————————————
IMPORTANT THINGS TO KNOW:
- You must provide the web address links to your references/sources and cite ALL references used in the paper with quotations: “example” and underlined (for my reference).
- Make sure to write your paper utilizing proper APA formatting guidelines, and to include an APA formatted title page.
- ***A note about credible sources: Credible sources are reliable, accurate, and trustworthy. These sources are written by authors respected in their fields of study. You want to identify sources where the author of the article is listed, if they’ve referenced other information, the sources should be cited so that you can check for the accuracy of and support what they have written. Wikipedia is not considered a credible source.
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Budget Estimates, management homework help Business Finance Assignment Help
This assignment will require you to create an operating budget that
takes into account the strategies and choices you’ve already made in
previous sections of the course project. It’s important that you
carefully consider exactly what you’ll have to spend money on in order
to successfully complete your goal. The numbers will be very general
estimates, but you’ll need to show the ability to accurately identify
the major costs. The categories and subcategories for the budget should
cover most if not all of the new expenses that will be present. This
assignment should be at least two pages in length and complete the following:
Goal Choice
- Clearly identify your chosen goal in an introductory paragraph.
The goals are Specific, measurable, and Timely
Operating Budget
- Create an operating budget for your goal.
- The budget should include common categories and subcategories such
as general operations, HR, marketing, miscellaneous expenses, etc. - Include all major expenses required for the goal. Common expenses include salaries, marketing channels, and inventory.
- Connect the costs/categories that you’re considering to your
already created marketing, management, and HR strategies discussed in
earlier portions of the project.
- The budget should include common categories and subcategories such
Capital Budget
- Identify two long-term assets from the capital budget that will
play a role in the completion of your goal. These can be new purchases
or existing assets.- Briefly explain the impact that each will have.
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