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i. Explain what an S-N curve is, including a sketch. How is such a curve typically determined in the laboratory?
ii. Explain what is meant by the terms endurance limit and fatigue limit.iii. Fatigue testing of metals is often conducted at a constant R ratio. Define the R ratio for a fatigue test.Commercially pure titanium alloy with an ultimate tensile strength of 650 MPa is tested at an R ratio of 0.1. The endurance limit at 107 cycles is found to be 180 MPa.
i. Calculate the mean stress in a fatigue test with a stress amplitude of 180 MPa and an R ratio of 0.1.ii. Use the Goodman equation to calculate the endurance limit at a mean stress of 0 MPa for this alloy.
Why might it be difficult for the Fed to formally adopt inflation targeting? Would inflation targeting be a good policy for the Fed in the present economic environment
In using the Taylor Rule as a guideline for monetary policy, what are the pros and cons of using forecasted values of inflation and output rather than observed values of these variables?
Describe the present economic crisis situation in Europe. Why has it been so difficult for the Europeans to find a solution to this problem? Comment on what implications the crisis may have for the rest of the world if Europeans are not able to ag..
Question:. Explain why there are long-term Federal government budget problems. Explain why the base-line forecast of the CBO is misleading.
Question based on Derive and compare demand curve, Derive Ambrose's demand function for peanuts. How does it compare with Johnny's demand curve for peanuts?
Problem based on Utility Function - Problem, Answer and explain the following using a diagram which is completely labeled.
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Problem - Income Elasticity of Demand, Interpret the following Income Elasticities of Demand (YED) values for the following and state if the good is normal or inferior; YED= +0.5 and YED= -2.5
Question Positive Balance of Payment: "Things will look good for the US if we could just get to where we are consistently running a positive Balance of Payments."
Comment on the effect of a recession on the investment curve (only) and on the level of savings, investment, and the equilibrium real interest rate in the financial crisis that hits United States first starting in fall 2007.
How will a fall in domestic investment affect the trade surplus and net capital outflows in the domestic economy, the trade deficit and capital inflows in the rest of the world.
Banking crises crisis decreases depositors' confidence in the banking system. What would be the effect of a rumor about a banking crisis on checkable deposits in such a country?
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