1.The notion of sustainability is used differently in economics than in the natural sciences. Explain the meaning of sustainability in these two frameworks, and discuss the attempts that have been made by economists to make the concept operational.
2. Would the extension of territorial limits for fishing beyond 200 miles from coastlines offer the prospect of significant improvements in the efficiency of commercial fishing
In: Economics
The cost per seat-mile on a major U.S. airline is 24.1 cents. In order to estimate the cost of flying a passenger from Pensacola, FL, to Denver, CO, we should multiply 1,184 miles by 24.1 cents.
Do you agree or disagree? Explain your reasoning.
What would you suggest to estimate the cost of a flight?
In: Accounting
The Problem involves building a 12 – foot diameter sewer at a bottom depth of 40 feet in loose sand with a water table at a depth of 8 feet. The alignment is along city streets. The project needs to be completed in 800 days. Determine the amount and types of equipment you feel should be used on this project. The sewer is ten miles in length.
In: Civil Engineering
Using R Studio/R programming...
A consumer-reports group is testing whether a gasoline additive
changes a car's gas mileage. A test of seven cars finds an average
improvement of 0.4 miles per gallon with a standard deviation of
3.57. Is the difference significantly greater than 0? Assume that
the values are normally distributed.
What would the code be?
In: Statistics and Probability
What is the hot water temperature (F) at the faucet at the
restaurant? (90/95)
What is the pH level for a community swimming pool? (5/-5.8)
What is the free chlorine level for a community swimming pool?
(0.5/1.0)
What year was the clean water Act Passed? (1948/1970)
In: Biology
If 735-nm and 620-nm light passes through two slits 0.78 mm apart, how far apart are the second-order fringes for these two wavelengths on a screen 1.0 m away?
Express your answer to two significant figures and include the appropriate units.
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In: Physics
5. Henry’s Law Calculate the mass of nitrogen dissolved at room temperature (25 °C) in an 80.0-L home aquarium. Assume total pressure of 1.0 atm and a mole fraction of nitrogen of 0.78. Henry’s constant for nitrogen at 25 °C is 6.1*10-4 M/atm.
In: Chemistry
1. Find the pH of a 0.030 M barium hydroxide solution.
2. Calculate [H+] at 25oC for a solution where [OH-] is 1.0 x 10-8 M.
3. In the following reaction, choose the conjugate acid: HNO3(aq) + H2O(l) ---> H3O+(aq) + NO3-(aq)
In: Chemistry
Find the pH of a 0.120 M solution of a weak monoprotic acid having Ka= 1.0×10−5.
Find the percent dissociation of this solution.
Find the pH of a 0.120 M solution of a weak monoprotic acid having Ka= 1.6×10−3.
Find the percent dissociation of this solution.
In: Chemistry
Calculate the pH of a solution produced during the titration of 50.00 mL of 2.0 M acetic acid with 1.0 M potassium hydroxide and the following volumes of base added:
a) 0.00 mL
b) 25.0 mL
c) 50.0 mL
d) 100.0 mL
e) 125.0 mL
In: Chemistry