A 10.0 cm radius piston compresses a gas isothermally from a height of 15.0 cm to 2.50 cm at a constant pressure of 2.0 atm. a) How much heat was added to the gas?

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A 10.0 cm radius piston compresses a gas isothermally from a height of 15.0 cm to 2.50 cm at a constant pressure of 2.0 atm.
a) How much heat was added to the gas?
) Now if 7000 J of heat is added to the system and the piston is only moves 5.0 cm up, what is the change in the internal energy of the system is the pressure is again constant at 2.0 atm?
Sketch a PV diagram for the following process:
a) A 2.0 L gas undergoes an isovolumetric increase in pressure from 1.0 atm to 2.0 atm
b) An isothermal compression from 2.0 atm and 2.0 L to 1.0 atm and 1.0 L
) An isobaric compression from 2.0 L to 1.0 L
An ideal gas expands at a constant total pressure of 2.5 atm from 3.45 L to 6.70 L. Heat then flows out of the gas at constant volume, and the pressure and temperature are allowed to drop until the temperature reaches its original value. Calculate:
a) the total work done by the gas in the process
Heat flows into an ideal gas at a constant volume. The pressure increases from 1.5 atm to 5.5 atm. Next the gas is compressed at constant pressure from 5.0 L to 2.5 L and goes back to its original temperature.
What is the total work done on the gas in the process?
b) What is the total change in internal energy?
An object has a weight of 400 N when it is dry. When it is completely submerged in water is has a weight of 150 N. What is the density of the material is the density of water is 1000 kg/m3?
A piece of gold with a mass of 5.50 kg and density of 19300 kg/m3 is suspended from a string and then totally immersed in a beaker of water. Using density of water is 1000 kg/m3
a) Determine the volume of the piece of gold.
b) Determine buoyant force on the gold when it is submersed.
A CD with a diameter of 12.5 cm goes from rest to a tangential velocity of 5.6 m/s. If it does this in 2.5 seconds, what is its angular acceleration?
A) 36 rad/s2
B) 16 rad/s2
If a car horn honking that is 450 m is heard 1.3 seconds after it goes off, what is the temperature in degrees Celsius?
.50 moles of an ideal gas is at 560K. Is the gas undergoes an adiabatic compression and 3750 J of work is done on the gas, what is the final temperature of the gas?

A ray of light strikes a flat, 2.00-cm-thick block of glass (n=1.50) at an angle of 30 degrees with respect to the normal. (a) Find the angle of refraction at the top surface.

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A ray of light strikes a flat, 2.00-cm-thick block of glass (n=1.50) at an angle of 30 degrees with respect to the normal. (a) Find the angle of refraction at the top surface. (b) Find the angle of incidence at the bottom surface and the refracted angle. (c) Find the lateral distance by which the beam is shifted. (d) Calculate the speed of light in the glass and (e) the time required for the light to pass through the glass block. (f) Is the travel time through the block affected by the angle of incidence? Explain.
. A bullet leaves a rifle with a muzzle velocity of 521 m/s. While accelerating through the barrel of the rifle, the bullet moves a distance of 0.840 m. Determine the acceleration of the bullet (assume a uniform acceleration). B. Ima Hurryin is approaching a stoplight moving with a velocity of +30.0 m/s. The light turns yellow, and Ima applies the brakes and skids to a stop. If Ima’s acceleration is -8.00 m/s2, then determine the displacement of the car during the skidding process. (Note that the direction of the velocity and the acceleration vectors are denoted by a + and a – sign.)
Mileposts mark distance along a highway. A car traveled from milepost 15 to milepost 185. To calculate the average speed of the car, what additional information is necessary?

Using momentum, Newton's first law of motion, and/ or newton's second law of motion; explain how a rocket is launched deep into the atmosphere?

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Using momentum, Newton’s first law of motion, and/ or newton’s second law of motion; explain how a rocket is launched deep into the atmosphere?
A small child is riding on a carousel. Her Dad notices as she goes by, that she is moving at 4.5 m/s. He alson notices that it takes her 12 seconds to make one complete revolution. What is the radius of the carousel?
Determine the momentum of a 0.45 caliber bullet (m= 0.162 kg) leaving the muzzle of a gun at 860 m/s
An automobile traveling along a straight road increases its speed from 32 ft/s to 48 ft/s in 180 ft. If the acceleration is constant, how much time elapses while the auto moves the 180 ft? Answer in units of s

Using momentum, Newton's first law of motion, and/ or newton's second law of motion; explain how a rocket is launched deep into the atmosphere?

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Using momentum, Newton’s first law of motion, and/ or newton’s second law of motion; explain how a rocket is launched deep into the atmosphere?
A small child is riding on a carousel. Her Dad notices as she goes by, that she is moving at 4.5 m/s. He alson notices that it takes her 12 seconds to make one complete revolution. What is the radius of the carousel?
Determine the momentum of a 0.45 caliber bullet (m= 0.162 kg) leaving the muzzle of a gun at 860 m/s
An automobile traveling along a straight road increases its speed from 32 ft/s to 48 ft/s in 180 ft. If the acceleration is constant, how much time elapses while the auto moves the 180 ft? Answer in units of s

The struggle to gain meaning is an important underpinning of both existential and Gestalt psychotherapy. Identify other major components of these two approaches to psychotherapy. Compare and contrast each. After watching "The Human Dilemma," review the position interpersonal psychotherapy takes on the medical model. Would Dr. Rollo May agree or disagree with that position? Why or why not?

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The struggle to gain meaning is an important underpinning of both existential and Gestalt psychotherapy. Identify other major components of these two approaches to psychotherapy. Compare and contrast each. After watching “The Human Dilemma,” review the position interpersonal psychotherapy takes on the medical model. Would Dr. Rollo May agree or disagree with that position? Why or why not?

You will review the theory, logic, and application of t tests. The t test is a basic inferential statistic often reported in psychological research. You will discover that t tests, as well as analysis of variance (ANOVA), compare group means on some quantitative outcome variable.

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You will review the theory, logic, and application of t tests. The t test is a basic inferential statistic often reported in psychological research. You will discover that t tests, as well as analysis of variance (ANOVA), compare group means on some quantitative outcome variable.
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By successfully completing this assessment, you will demonstrate your proficiency in the following course competencies and assessment criteria:

  • Competency 1: Analyze the computation, application, strengths, and limitations of various statistical tests.
    • Develop a conclusion that includes strengths and limitations of an independent-samples t test.
  • Competency 2: Analyze the decision-making process of data analysis.
    • Analyze the assumptions of the independent-samples t test.
  • Competency 3: Apply knowledge of hypothesis testing.
    • Develop a research question, null hypothesis, alternative hypothesis, and alpha level.
  • Competency 4: Interpret the results of statistical analyses.
    • Interpret the output of the independent-samples t test.
  • Competency 5: Apply a statistical program’s procedure to data.
    • Apply the appropriate SPSS procedures to check assumptions and calculate the independent-samples t test to generate relevant output.
  • Competency 6: Apply the results of statistical analyses (your own or others) to your field of interest or career.
    • Develop a context for the data set, including a definition of required variables and scales of measurement.
  • Competency 7: Communicate in a manner that is scholarly, professional, and consistent with the expectations for members in the identified field of study.
    • Communicate in a manner that is scholarly, professional, and consistent with the expectations for members in the identified field of study.

     

Read Assessment 3 Context [DOC] for important information on the following topics:
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  • Logic of the t test.
  • Assumptions of the t test.
  • Hypothesis testing for a t test.
  • Effect size for a t test.
  • Testing assumptions: The Shapiro-Wilk test and Levene’s test.
  • Proper reporting of the independent-samples t test.
  • t, degrees of freedom, and t value.
  • Probability value.
  • Effect size.

 
Read Assessment 3 Context (linked in the Resources) to learn about the concepts used in this assessment.
You will use the following resources for this assessment. They are linked in the Resources.

  • Complete this assessment using the DAA Template.
  • Read the SPSS Data Analysis Report Guidelines for a more complete understanding of the DAA Template and how to format and organize your assessment.
  • Refer to IBM SPSS Step-By-Step Instructions: t Tests for additional information on using SPSS for this assessment.
  • If necessary, review the Copy/Export Output Instructions to refresh your memory on how to perform these tasks. As with your previous assessments, your submission should be narrative with supporting statistical output (table and graphs) integrated into the narrative in the appropriate place (not all at the end of the document).

You will analyze the following variables in the grades.sav data set:

  • gender.
  • gpa.

Step 1: Write Section 1 of the DAA

  • Provide a context of the grades.sav data set.
  • Include a definition of the specified variables (predictor, outcome) and corresponding scales of measurement.
  • Specify the sample size of the data set.

Step 2: Write Section 2 of the DAA

  • Analyze the assumptions of the t test.
  • Paste the SPSS histogram output for gpa and discuss your visual interpretations.
  • Paste SPSS descriptives output showing skewness and kurtosis values for gpa and interpret them.
  • Paste SPSS output for the Shapiro-Wilk test of gpa and interpret it.
  • Report the results of the Levene’s test and interpret it.
  • Summarize whether or not the assumptions of the t test are met.

Step 3: Write Section 3 of the DAA

  • Specify a research question related to gender and gpa.
  • Articulate the null hypothesis and alternative hypothesis.
  • Specify the alpha level.

Step 4: Write Section 4 of the DAA

  • Paste the SPSS output of the t test.
  • Report the results of the SPSS output using proper APA guidelines. Include the following:
    • t.
    • Degrees of freedom.
    • t value.
    • p value.
    • Effect size.
    • Interpretation of effect size.
    • Means and standard deviations for each group. Mean difference.
    • Interpret the results against the null hypothesis.

Step 5: Write Section 5 of the DAA

  • Discuss the implications of this t test as it relates to the research question.
  • Conclude with an analysis of the strengths and limitations of t-test analysis.