Suppose that the demand for wheat (measured in bushels) is given by: Qw = 90 – 8Pw where Qw is the number of bushels demanded and Pw is the price per bushel. (a) This year’s harvest is 10 million bushels. Calculate the price elasticity of demand at that point. (b) If next year’s harvest were to fall below 10...
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0 m/s2 . The acceleration period lasts for time 7.00 s until the fuel is exhausted. After that, the rocket is in free fall. Find the maximum height ymax reached by the rocket. Ignore air resistance and assume a constant acceleration due to gravity...
Rogger sees water ballons fall past his window. He notices that each ballon strikes the sidewalk 0.59 s after passing his windown. Rogger's room is on the second floor, 10m above the sidewalk. How fast are the ballons traveling when they pass Rogger's window? Express your answer to three significant figures and includethe appropiate units.
5. Labor market Which of the following events may decrease the marginal product of labor? Check all that apply. A technological improvement that is substitutable for the labor in this market. A flood that damages most of the machinery used to make the good, decreasing the capital stock. Good weather causes an increase in supply and a fall in price...
Suppose X is a binomial random variable, where n=70, p= 0.8 Given that the distribution of X is symmetric, any observation that lies more than two standard deviations from the mean would be considered unusual. Therefore, usual observations would fall outside of the range: a) [ 50.643, 54.982 ] b) [ 49.306, 62.696 ] c) [ 45.265, 66.432 ] d)...
Cholesterol levels for women aged 20 to 34 follow an approximately normal distribution with mean 185 milligrams per deciliter (mg/dl). Women with cholesterol levels above 220 mg/dl are con- sidered to have high cholesterol and about 18.5% of women fall into this category. What is the standard deviation of the distribution of cholesterol levels for women aged 20 to 34?
Suppose a country reduces restrictions on how many hours people can work. If reducing these restrictions increase the total number of hours worked in the economy, but all other factors that determine output are held fixed, then a. productivity falls and output rises. Selected:b. productivity rises and output falls.This answer is incorrect. c. productivity and output both rise. d. productivity...
A spherical raindrop (r = 0.0015 m) falls from a cloud. The drag coefficient is 0.60. The density of the water is 1000 kg/m^3 and the density of the air it falls through is 1.2 kg/m^3. The shape of the drop doesn’t change during the fall, and the terminal velocity is 7.3 m/s. At this terminal speed, what is the...
A certain freely falling object, released from rest, requires 1.40 s to travel the last 34.0 m before it hits the ground. (a) Find the velocity of the object when it is 34.0 m above the ground. (Indicate the direction with the sign of your answer. Let the positive direction be upward.) m/s (b) Find the total distance the object...
True of False 1. When tax is levied on the good in a competitive market, the tax revenue got by government equals the fall in producer and consumer surplus. 2. In the presence of a negative externality, Qoptimum is therefore larger that the Qmarket. 3. In the long run, monopolistic competitive firms produce at their lowest average total cost. 4....