A closed economy has two factors of production: capital and labor. The production function is known to exhibit constant returns to scale. The capital stock is about 4 times one yearís real GDP. Approximately 8% of GDP is used to replace depreciating capital. Labor income is 70% of real GDP. Real GDP grows at an average rate of 4% per year. Assume the economy is at a steady state. (a) Is the capital per e§ective worker lower or larger than it would have been in the golden rule steady state? [To receive points on this question, you need to show me your calculations] (b) [growth accounting] If the population grows at a rate 1% per year, Önd what portion of output growth is due to: (i) an increase in capital; (ii) an increase in labor; (iii) an increase in total factor productivity.

Consider the axon hillock of a prototypical neuron at rest.

1) detail the open/closed states of the two relevant voltage-gated ion channels while cell is at rest.

The membrane potential reaches threshold.

2) explain what will happen regarding Na+ at this point.

3) state what will happen to the membrane potential at this point.

Question 2 Consider a small closed economy. The government wants to reduce the budget deficit by reducing its spending. a. Use the goods market and IS curve to illustrate graphically the impact of the reduction in government spending on output. b. Now use the goods market and money market diagrams and the IS-LM model to illustrate graphically the impact of the reduction in government spending on output c. Why the effect of the reduction in government spending on output is different in part a from that in part b?

4) As conditions in short term financial markets improved by summer of 2009 the Fed closed down its lending under these programs mentioned in Q3 above. However, throughout the next 4 years the Fed increased substantially its purchases of longer term mortgage backed securities and Treasury notes from banks in a series of 3 “Quantitative Easing” (QE1, QE2, and QE3) Programs.

A) Assume that both lender & borrower confidence levels start to return to normal and financial and physical investment levels start to rise much more strongly in the next 12 months than in the last few years. What potential problems will the extraordinary growth in banks’ reserve deposits and in the size of the Fed’s portfolio of longer-term Treasury and Mortgage backed bonds that has resulted from 3 rounds of Quantitative Easing create then for the Fed? 4pts

B) What relatively untested policy tools will help the Fed deal with this problem? Explain. (Hint: you may wish to look at www.federalreserve.gov then click monetary policy…then Policy Normalization: principles and Plans)

3 kg of air in a closed movable container undergoes a few processes. Initially, the air with P1=330kPa and T1=70°C is cooled without producing any work until P2= 100kPa, and then it is expanded according to PVn=cont, where n=1.84 until the volume is double. The air again will be heated without changing the volume until the temperature of the air increase to the initial temperature. It is then cooled with constant pressure until the volume becomes 0.5m3. The air undergoes isothermal compression process with Wb=-130kJ. Finally, the air undergoes a polytropic expansion to the initial state.

1.1. Sketch the P-V diagram

1.2. Find all P’s, V’s and T’s

1.3. Calculate all Q’s

1.4. Determine the nett work of the cycle

Use the following information about the closed economy of Vanatu to answer questions 7 and 8:

Y=$35,000
T=$5,000 C=MPC*(Y-T)+$1000-1,000r MPC=0.8
G=$6,500
I=$4000-2,000r

8. Now suppose that the government of Vanatu wants to increase spending on military services. Assume that government purchases increase by $1,500. At the same time, assume the inflation rate in Vanatu is, and remains, 10%. Then

1. a) The nominal interest rate now is 76.7%; private savings increases

2. b) The nominal interest rate now is 67.5%; private savings decreases

3. c) The nominal interest rate now is 33.2%; private savings increases

4. d) The nominal interest rate now is 43.3%; private savings decreases

5. e) The nominal interest rate now is 57.7%; private savings increases

THE ANSWER IS A I AM JUST CONFUSED HOW TO GET THERE

You have a vertical metal rod, a spring with one end closed and the other end open so that it can slide down over the rod and then fly up when released, and a meter stick. The mass of the spring is 15g and its spring constant k is 6 N/m Your group decides to test the work-energy principle by stretching the spring a distance Dy = 30 cm, releasing it from rest and measuring how high it goes. Use your understanding of energy to predict how high the spring will go. Discuss what assumptions are being made in making your prediction. PLEASE INCLUDE FORCE DIAGRAM AND COORDINATE SYSTEM.

Assume a closed economy without Government. However, there exists a financial sector that creates an array of financial assets on which both households and firms invest. Let ? denote the average earnings from these financial assets. The consumption expenditure of the households is influenced by their wage income and the financial income and is given by ? = ?(?, ?); ?? > 0, ?? > 0, where ??, ?? are partial derivatives of consumption with respect to income ? and financial earnings ? respectively. Similarly, the real investment expenditure of firms is given by ? = ?(?, ?); ?? > 0, ?? < 0, where ??, ?? are the partial derivatives of the real investment with respect to income and financial earnings. Using either the Keynesian cross model or the Multiplier analysis, answer the following questions.

(i) Derive the relationship between output ? and financial earnings ?, and examine the analytical conditions under which the relationship is positive ( ?? ?? > 0) and negative ( ?? ?? < 0). [15]

(ii) Describe why the scenario where the expansion in output driven by the rise in financial earnings, i.e. when ?? ?? > 0, could make the economy unstable and vulnerable to crisis? [5]

We often use grinding in closed circuit, and have a targeted value for a circulated load. What is the formula for the percentage circulating load? Explain why a circulating load is preferable to just grinding until we are sure that everything would pass through the post grinding screen.

Please select True or False: For a satellite in a non-circular, closed, fixed orbit around the Earth, answer which of the following are always true or always false for Kinetic Energy (KE) and Potential Energy (PE).

Answer the following with ;