calculate the number of moles in 234g of sodium sulfate. Show your answer in detail. What
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Asked: Mar 23rd, 2015
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calculate the number of moles in 234g of sodium sulfate. Show your answer in detail.
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Aveda Institute New York Personal Genetics Discussion
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Apply Newton’s laws of motion to solve problems
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Your supervisors at A&L Engineering have tasked you w ...
Pierce College Newtons Law of Motion Paper
Apply Newton’s laws of motion to solve problems
Scenario
Your supervisors at A&L Engineering have tasked you with evaluating the durability of three common materials used in the design of cell phone cases. For each material type, you have been asked to determine the force of impact of a phone dropped from a set height above the ground. Using the mass of each case and the collision time, determine the force of impact on each case material and determine which case material offers the most protection.
To facilitate your analysis, you have been provided with specifications for case materials in the table below. However, you may also use your own figures for the mass of phones and test case materials. If you do use a different figure, be sure to make that clear in your analysis. As you use this data, ensure that you have made the necessary SI unit conversions:
Test MaterialMassCollision TimePhone Only (No Case)6.2 oz.0.01 secondsSilicone1.7 oz.0.05 secondsHard Plastic1.1 oz.0.03 secondsRubber3.2 oz.0.08 seconds
Directions
To complete your evaluation of various materials for cell phone cases, you must create a case material evaluation report that describes the motion and impact forces of several phone case materials under evaluation.
To begin your evaluation of different case materials, you must first define Newton’s laws of motion and then describe how each of Newton’s laws applies to the motion you will be analyzing. As you will be presenting this report to various stakeholders, you have been asked to write your definitions and descriptions with a nontechnical audience in mind.
Once you have described the relevant laws of motion, create force diagrams to model the motion for a phone dropped from a set height. You should include diagrams, with their respective force vectors, for each phone drop. In your diagrams, address the following:
Define the height you will be using for each phone drop. As the researcher, you will choose a drop height of between 1 and 2 meters.
Using the provided mass of 6.2 oz, or by measuring the mass of a personal cell phone, determine the mass you will be using for your calculations. Remember to add the mass of the case material.
In your diagram, show the direction and name of each force on the cell phone both at the drop point and at the point of collision with the ground.
Following the creation of the force diagram, use the information provided in your case specification document to calculate the velocity before impact and deceleration at impact. Remember that deceleration is represented as negative acceleration in force equations. In your calculations, assume a standard free-fall acceleration during the fall, and a velocity of 0 m/s after the impact. You should include calculations for the following scenarios:
A phone without a case
A phone with a silicone case
A phone with a hard plastic case
A phone with a rubber case
Using Newton’s second law, calculate the force of impact for each scenario.
After you have completed your calculations, describe how force equations model the given scenario. In your description, address the following elements:
Velocity before impact
Acceleration
Force
Finally, using data from your analysis, recommend the best material for a cell phone case. In your recommendations, address the following elements:
Which of the trials results in the lowest force of impact on the phone?
What considerations, in physics or otherwise, might you have in recommending a material for a cell phone case?
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Aveda Institute New York Personal Genetics Discussion
InstructionsFor this week’s discussion, you will begin learning about what personal genetics is, the advantages and disa ...
Aveda Institute New York Personal Genetics Discussion
InstructionsFor this week’s discussion, you will begin learning about what personal genetics is, the advantages and disadvantages of knowing your genetic code, and the ethical implications of personal genetic research. The discussion includes two parts: an initial response that asks you to respond to five statements regarding personal genetics and a peer-review response that asks you to write a substantive commentary on your classmate's initial response. Read the following material:What is personal genetics? (Links to an external site.)Benefits and implications of learning about your DNA (Links to an external site.)OPTIONAL: Introduction to Personal Genetics VideoSubmit a written response (in complete sentences) to the following statements. For each of the 5 statements listed below, indicate whether you 1) agree, 2) strongly agree, 3) disagree, or 4) strongly disagree and explain why. If you are unsure about a statement, you can state so, but again, explain your choice.Respond to the following 5 statements:People should have the right to learn whatever they want about their DNA because it is their own body.I would only want to find out my likelihood of developing a disease if there are ways to prevent or treat it. Employers should use genetic information to make hiring or firing decisions about employees.I would want to know if someone I was dating had a strong genetic predisposition to a serious disease.Information from DNA testing of relatives should be available to compare to DNA sequences found at crime scenes, to help identify criminals. Peer Review Response After you make your initial post, you will be able to view the initial posts of classmates. Pick two statements from the a classmate's initial response and write a 2-3 sentence reply. The response should expand the conversation, even if you disagree with what your classmate wrote. You are welcome to agree or disagree with their opinion; however, respectfully offer counterpoints to their initial response.
Pierce College Newtons Law of Motion Paper
Apply Newton’s laws of motion to solve problems
Scenario
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Apply Newton’s laws of motion to solve problems
Scenario
Your supervisors at A&L Engineering have tasked you with evaluating the durability of three common materials used in the design of cell phone cases. For each material type, you have been asked to determine the force of impact of a phone dropped from a set height above the ground. Using the mass of each case and the collision time, determine the force of impact on each case material and determine which case material offers the most protection.
To facilitate your analysis, you have been provided with specifications for case materials in the table below. However, you may also use your own figures for the mass of phones and test case materials. If you do use a different figure, be sure to make that clear in your analysis. As you use this data, ensure that you have made the necessary SI unit conversions:
Test MaterialMassCollision TimePhone Only (No Case)6.2 oz.0.01 secondsSilicone1.7 oz.0.05 secondsHard Plastic1.1 oz.0.03 secondsRubber3.2 oz.0.08 seconds
Directions
To complete your evaluation of various materials for cell phone cases, you must create a case material evaluation report that describes the motion and impact forces of several phone case materials under evaluation.
To begin your evaluation of different case materials, you must first define Newton’s laws of motion and then describe how each of Newton’s laws applies to the motion you will be analyzing. As you will be presenting this report to various stakeholders, you have been asked to write your definitions and descriptions with a nontechnical audience in mind.
Once you have described the relevant laws of motion, create force diagrams to model the motion for a phone dropped from a set height. You should include diagrams, with their respective force vectors, for each phone drop. In your diagrams, address the following:
Define the height you will be using for each phone drop. As the researcher, you will choose a drop height of between 1 and 2 meters.
Using the provided mass of 6.2 oz, or by measuring the mass of a personal cell phone, determine the mass you will be using for your calculations. Remember to add the mass of the case material.
In your diagram, show the direction and name of each force on the cell phone both at the drop point and at the point of collision with the ground.
Following the creation of the force diagram, use the information provided in your case specification document to calculate the velocity before impact and deceleration at impact. Remember that deceleration is represented as negative acceleration in force equations. In your calculations, assume a standard free-fall acceleration during the fall, and a velocity of 0 m/s after the impact. You should include calculations for the following scenarios:
A phone without a case
A phone with a silicone case
A phone with a hard plastic case
A phone with a rubber case
Using Newton’s second law, calculate the force of impact for each scenario.
After you have completed your calculations, describe how force equations model the given scenario. In your description, address the following elements:
Velocity before impact
Acceleration
Force
Finally, using data from your analysis, recommend the best material for a cell phone case. In your recommendations, address the following elements:
Which of the trials results in the lowest force of impact on the phone?
What considerations, in physics or otherwise, might you have in recommending a material for a cell phone case?
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Describe the hydrologic cycle. Why is this cycle important to the environment? How did your results from the “Build Your ...
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Understanding Planetary Motion
Johannes Kepler, a 17th Century astronomer and mathematician,
published three laws of planetary motion that improved upo ...
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Johannes Kepler, a 17th Century astronomer and mathematician,
published three laws of planetary motion that improved upon Copernicus's
heliocentric model. These laws were made possible by years of accurate
planetary measurement collected by Kepler's predecessor, Tycho Brahe.
Kepler's laws were a radical change from previous astronomical models
for the Solar System which maintained the ancient Greek idea of perfect
circular motion. With the Stellarium planetarium software, we are able
observe the orbit of the planets and test some of his ideas. For this part of the project, use a computer simulation to test
Kepler's laws of planetary motion. Please read through the assignment
background information and follow the steps listed in the lab assignment
instructions. You will be asked to form a hypothesis, state the lab
objective, record your measurements and calculations, and answer each of
the lab questions. Follow the instructions contained within the Word document and submit your results as this project deliverable. Submit your assignment with a title page and in APA format.
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