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A composite beam is made by attaching the timber and steel portions shown with bolts of 12-mm diameter spaced longitudinally every 200 mm. The modulus of elasticity is 10 GPa for the wood and 200 GPa for the steel. For a vertical shear of 4 kN, determine
(a) the average shearing stress in the bolts,
(b) the shearing stress at the center of the cross section
Use the capital-asset pricing model to predict the returns next year of the following stocks, if you expect the return to holding stocks to be 12 percent on average, and the interest rate on three-month T-bills will be two percent.
Using the marginal cost and new marginal revenue numbers in Table 1, find the number of beds Ned should sell.
Select a representative natural ecosystem in your area or one in which you are interested-such as a lake, preserve, or park-that is managed for native species.
Society puts increased demand on goods and services, natural resources, energy and industrial production. In considering all of these perspectives who should be held accountable? Use research to justify your answer.
Bounds Inc. has determined through regression analysis that its sales (S) are a function of the amount ofadvertising in two different media.This is given by the following relationship (X=newspapers,Y=magazines): S(X,Y) = 200X + 100Y - 10X2 - 20Y2 ..
Jeff holds $50,000 wealth which has a utility of 7.07 utils (assuming utility is the square root of wealth in thousand dollars). He considers investing this in a gamble which has a 0.6 probability of increasing his total wealth to $100,000 and 0.4..
Suppose honey is produced in a beehive using bees and sugar. Each honey producer uses one beehive which she rents for $30 per month. Producing q gallons of honey in one month requires spending 5q dollar bees
Davy Metal Company produces brass fittings. Davy's engineers estimate the production function represented below as relevant for their long-run capital-labor decisions. Q = 500L^0.6K^0.8 where Q = annual output measured in pounds.
Suppose that firms continue to keep $1 per hour for administrative costs. Predict the new wage. e. Who bears the bulk of the housecleaning tax, wealthy households or poor ones?
Identify and define two economic indicators that reflect the strength of the economy (e.g. real GDP, unemployment rate, inflation rate, interest rate, housing starts, etc.).
You are to write a paper, convincing the president of the company of your conclusion and explaining what the company's pricing strategy should be.
When a pair of dice are tossed, the results may be any whole number from 2 through 12. In the game of craps one can win by tossing either a 7 or 11 on the first roll. What is the probability of doing this.
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