Consider 50 moles of carbon dioxide in a piston-cylinder that is isothermally compressed at temperature of T=350 K from 100 kPa to 400 kPa. What are the changes in the total entropy (of the Universe), the system, and the surroundings if the gas is compressed using a heat reservoir at a temperature of 350 K? Using a heat reservoir at a temperature of 250 K? You can assume that the processes within the piston-cylinder system are internally reversible.
In: Mechanical Engineering
According to Boyle’s law, for a certain gas, pressure an volume
are inversely proportional: P = 800/V where V is measured in and
pressure P in pounds per square inch.
a) Find the rate of change of P when V=20 , and interpret its
meaning (carefully state the units).
b) Find the average rate of change of P when V changes from 20 to
25 . Compare your result with a).
In: Math
Given the enormity of secondary data availability, research options have been modified over the years; after conducting some basic search using scholarly articles, briefly outline such changes and how they have affected traditional survey and experimental research. Your response should include sound arguments and examples to further extend the discussion
how can I put in a work cited page for this answer.
In: Statistics and Probability
Take the perspective of the CEO of a large healthcare system that owns its own managed care health plan. Describe three major ways that you could improve the quality of healthcare in your organization. Critique your solutions regarding the extent to which your solution may cause other problems to surface [what kind?], and the extent to which you as the CEO should have the responsibility and power to implement these changes.
In: Economics
Suppose that Congress and the President enact legislation that provides a tax rebate to businesses to purchase capital goods. Assume other countries make no policy changes. You can write up, down, or flat in the boxes.
|
US real interest rate |
US Domestic Investment |
US Net Capital Outflow |
US Real Exchange Rate |
Net Exports |
|
|
A decline in Investment Demand |
|||||
|
An Increase in the Savings Rate |
In: Economics
Assume you buy a bond with the following features
Bond maturity = 4
Coupon Rate = 3%
Face Value = $1,000
Annual Coupons
When you buy the bond the market interest rate = 4.76%
Immediately after you buy the bond the interest rate changes to
6.67%
What is the "reinvestment" effect in year 3 ?
Can you show me how to do it step by step in a financial calculator?
In: Finance
Suppose businesses become pessimistic future of the economy causing businesses to reduce their investments. Use the model of aggregate supply and aggregate demand to show what the Federal Reserve could do to offset the short-run changes in the aggregate supply and aggregate demand model. Explain your answer. HINT: You will need 2 different graphs: a money market graph and the aggregate supply – aggregate demand graph.
In: Economics
Using a graph, show how each of the following labor markets (assumed to be competitive and initially in equilibrium) is affected by the following changes. Explain your reasoning fully.
1.Labor market for workers who completed high school only.The workplace becomes more computerized and technically sophisticated.
2.Labor market for workers who completed college or more.The workplace becomes more computerized and technically sophisticated.
In: Economics
In: Psychology
1. What role does a play in the actual contraction of a muscle ber (skeletal and cardiac)?
2. How do cardiac muscle and skeletal muscle differ in the role of Cain stimulation of muscle fibers? How does this difference affect the changes in membrane potential in cardiac muscle?
3. Based on the information in questions 1 and 2 explain why cardiac muscle does not demonstrate tetanic muscle contractions
In: Anatomy and Physiology