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Refrigerant-22 (R-22) boiling at 250 K flows through a tubular heat exchanger. Tubes are arranged horizontally with an inner diameter of 0.0172 m. The mass velocity of the R-22 is 200 kg/ m2 · s. Heat is supplied by condensing the fluid outside at -12°C. The hot fluid-side heat transfer coefficient, hh, is 5400 W/m2 · K. The tube is made of PVDF polymer, and fouling is neglected. By the use of both Chen and Shah's methods, calculate the convection heat transfer coefficient for R-22 for various values of quality assuming no nucleate boiling and the heat transfer rate per length
.In the long run, a price increase from $1 to $2 has an elasticity of supply of 1.50. So how many popsicles will be sold per day in the long run if the prices rises to $2 each ( Hint : Apply the midpoints approach to the elaticity of supply.)
Assume the wage is $8. Complete the following table: Workers Total Product Marginal Product of Labor Price Marginal Revenue Product (MRP) 1 17 2 2 31 2 3 43 2 4 53 2 5 60 2 6 65 2 What are the two effects of a price change
d. explain why the production possibility frontier of part c is concave. e. sketch the realtive price of food as a function of its output in part c. f. if consumers insist on trading four units of food for five units of cloth, what is the relative pr..
Why do newspapers often support subsidies for professional sport facilities?
BMW sells 5,000 vehicles in the US. The export price is €40,000. The exchange rate is €1= $1.25. US price elasticity of demand for the German import, in terms of the $ price, is-2. The cost of each vehicle is €30,000. What is the current € profit ..
from this, equilibrium leads to 1100-5P = -100+P ⇒ P = 200 and Q = 100 Suppose the world price is still 120. Assume that the government now imposes an import quota of 300 units. Under the new quota,
There are 20 million households in Country X and 4 million of them are below the poverty line. What is the poverty rate for Country X?
Further suppose that 51.3% of births are male. What is the probability that a randomly chosen child will be affected by the disease?
In response, she has proposed legislation that would award each existing firm 20 percent of a contract for 600 units at a contracted price of $100 per unit. If this legislation is passed, by how much should you expect your profits to change?
Now the gov decided to pass a law that the cost to rent should not exceed $375 per apartment. In order to minimize the damage such a law will have on apartment owners, the government decided to allow landlords to force.
Calculate the BIC with the command estat ic and what is the difference between the predicted values and actual for the AR(1), AR(2) and AR(3) models.
gives data on X (net profits after tax in U.S. manufacturing industries [$, in millions]) and Y (cash dividend paid quarterly in manufacturing industries [$, in millions]) for years 1974 to 1986.
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