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A 90o perfectly conducting corner cube reflector has a shortdipole (oriented in the z-direction) placed at a distance d from the vertex. The antenna is fed by current Io.
a) Find the equivalent array of dipoles by determining a system of images
b) Derive the array factor
c) Determine the total far-field (E)
d) For a distance d=0.5λ, calculate the directivity on y-axis.
Over the past few years there has been much concern about falling housing prices, and some policy makers have argued that the government should put a floor under prices so that the
Despite the economic progress that the U.S. has observed in the past century, the standard of living remains extremely low in many countries. Why are some countries relatively weal
What is the marginal product? The marginal product of an input is the extra quantity of output which is generated by using one more unit of which input. Marginal product of
: Suppose that 100 people live around a hazardous waste dump. If the people continue to live there for 20 years, one of them will likely contract a painful, non-fatal cancer that w
Assume that the demand for running shoes is highly inelastic and the supply curve for running shoes is highly elastic. Suppose that the tastes of the exercising public shift away f
1. Suppose the banking system has reserve of $750000, demand deposits of $2500000 and a reserve requirement of 20%. a. if the fed now purchases $125,000 worth of govt bonds from t
An example of direct foreign investment is given by: a. The sale of U.S. government bonds to foreigners. b. The sale of U.S. stocks (equities) to foreigners. c. A multinational cor
Consider the multiplier model we have studied in class. Assume that the economy is initially in equilibrium and that real income is $180. The marginal propensity to expend is 0.66.
The annual fixed cost for a light fixture manufacturing company are $38,000, and the variable costs are $40 per unit. If the selling price per unit is p = 485 - 1.395X, what is the
explain the functions and role of the world bank
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