We can make a simple model of the human vocal tract as an open-closed tube extending...

We can make a simple model of the human vocal tract as an open-closed tube extending from the opening of the mouth to the diaphragm

Q: What is the length of this tube if its fundamental frequency equals a typical speech frequency of 240 Hz ? The speed of sound in the warm air is 350 m/s.

Expert Solution

genius_generous answered 2 years ago

By extending the IS model including the foreign interest rates we can analyze how events in...

By extending the IS model including the foreign interest rates we can analyze how events in the world economy affect the US economy. Suppose there is an increase in the foreign interest rate. Explain in no more than 5 lines if the IS curve shifts or not and in why.

The Elephant ear canal has a length of 17 cm, and is also an open-closed tube....

The Elephant ear canal has a length of 17 cm, and is also an open-closed tube. Assume the speed of sound is 343 m/s. a) Calculate the fundamental frequency of the Elephant's ear canal. b) Should sound with that frequency appear to be louder to the elephant, or quieter than half that frequency? Also, can the average human hear this sound? What range of frequencies can the average human hear? d) Draw a diagram of (i) the displacement of air...

To keep the calculations fairly simple, but still reasonable, we shall model a human leg that...

To keep the calculations fairly simple, but still reasonable, we shall model a human leg that is 92.0 cm long (measured from the hip joint) by assuming that the upper leg and the lower leg (which includes the foot) have equal lengths and that each of them is uniform. For a 70.0 kg person, the mass of the upper leg would be 8.60 kg , while that of the lower leg (including the foot) would be 5.30 kg . Take...

. Assume a simple closed Keynesian model where the MPC is 0.9 and the MPIM is...

. Assume a simple closed Keynesian model where the MPC is 0.9 and the MPIM is 0.1. Also assume that potential real GDP is $2000 million, while actual (equilibrium) real GDP is $1200 million. a. What is the GDP gap? b. Is there an inflationary or recessionary gap? c. What change in government spending is required to restore the economy to full employment GDP? Show graphically using a Keynesian cross diagram. d. What change in...

What initial conditions would make it likely that a closed and open economy would fall into...

What initial conditions would make it likely that a closed and open economy would fall into a deflation trap? .

Compare the Closed-Economy IS-LM model, an Open-Economy IS-LM-BP model in which exchange rates are allowed to...

Compare the Closed-Economy IS-LM model, an Open-Economy IS-LM-BP model in which exchange rates are allowed to float freely, and an Open-Economy IS-LM-BP model in which exchange rates are held constant by the central bank. Specifically, use the three models to explain, and compare, the effects on GDP, interest, and the exchange rate of the national currency of: a. A sudden increase in government expenditures. b. A sharp increase in the discount rate and a massive sale of Treasury bonds by...

Consider a closed economy (no international trade) under a simple Keynesian model. Assume investment is a...

Consider a closed economy (no international trade) under a simple Keynesian model. Assume investment is a constant. Tax is a lump-sum that does not depend on income. If a government increases its expenditure by $1 but at the same time increases the lump-sum tax by $1. Will real output be increased or decreased, and by how much?

According to the simple Keynesian model, state activities belong to a closed economy pages of files...

According to the simple Keynesian model, state activities belong to a closed economy pages of files in the table: Y S Yd Ip G 2500 150 2000 750 500 3000 200 2250 750 500 3500 220 2470 750 500 4000 150 2600 750 500 4500 200 2850 750 500 According to this; a) Find the level of national income (real product) (Y) that provides balance in the goods market. b) According to the table, at what level of national income...

IS-LM Model (Closed Economy) The following equations describe a small open economy. [Figures are in millions...

IS-LM Model (Closed Economy) The following equations describe a small open economy. [Figures are in millions of dollars; interest rate (i) is in percent]. Assume that the price level is fixed. Goods Market C = 250 + 0.8YD YD = Y + TR – T T = 100 + 0.25Y I = 300 – 50i G = 350; TR = 150 Money Market L = 0.25Y – 62.5i Ms/P = 250 Goods market equilibrium condition: Y = C +...

An Economic Model of National Income in a Closed Private Economy in the Short Run (We...

An Economic Model of National Income in a Closed Private Economy in the Short Run (We are assuming for this model that there is no trade, no government, and no business saving.) C = 280 + 0.80*Y Consumption Function [$Billion/year] I = 620 Planned Investment (Purchase of new capital goods and services) [$Billion/year] Y National Income [$Billion/year] Part 1. What is the aggregate expenditure function in this model? Part 2. Suppose firms expect to sell, and produce, 4725...

Question