Assume that the US population grows at 1% per
year, and that each of us continues to use the
same amount of energy per year. How many
tons of extra coal will we need to burn per year
if this increased energy demand is met only from
this one fuel?
Assume that the US population grows at 1% per year, and that each of us continues...
Assume that the US population grows at 1% per year, and that each of us continues to use the same amount of energy per year. How many tons of extra coal will we need to burn per year if this increased energy demand is met only from this one fuel?
2. Much like problem 12 of Chapter I. Assume that the US population grows at 1% per year, and that each of us continues to use the same amount of energy per year. How many tons of extra coal will we need to burn per year if this increased energy demand is met only from this one fuel?
Suppose China’s GDP is growing by 7% a year and its population grows by 1% a year. Also suppose that US GDP grows by 3% a year and its population grows by 1% a year, and that in 2019 US GDP is 1.5 times China’s while US population is one quarter of China’s. If these growth rates continue By what year will China’s GDP double? Its population? Its per capita GDP? In what year will China’s GDP equal...
Real GDP per Capita in the US is currently $56,000 and grows at approximately 1.5% each year. Real GDP per Capita in China is currently $8,000 and grows at approximately 6.5% each year. If these growth rates continue, Real GDP per Capita for each country will be equal in how many years? (round to the nearest integer)
1. If the world population grows at a constant rate of 1.8% per annum, how many years will it take to double? A) 17.7 years B) 23.4 years C) 35.0 years D) 38.8 years E) 69.7 years 2. A group of humans traveling in space discover a habitable planet. They settle down there and start populating it. Their population grows at a steady rate and doubles every 10 years. Thousand years after the first group of humans arrived, the planet...
Write and equation for each then solve: For a period of time, an island's population 1) grows at a rate proportional to its population. If the growth rate is 3.8% per year and the current population is 1543, what will the population be 5.2 years from now? 2) A savings account balance is compounded continuously. If the interest rate is 3.1% per year and the current balance is S1077.00, in how many years will the balance reach $1486.73?
Write and...
An electrical utility is
experiencing a sharp power demand that continues to grow at a high
rate in a certain local area. Two alternatives are under
consideration. Each is designed to provide enough capacity during
the next 25 years, and both will consume the same amount of fuel,
so fuel cost is not considered in the analysis. bullet Alternative
A. Increase the generating capacity now so that the ultimate
demand can be met without additional expenditures later. An
investment of...
2- Using the Rule of 70, if the US economy is at $20 Trillion and grows continually at a rate of 3.5% per year, how long will it take to reach $40 Trillion? 50 Years 35 Years 10 Years 20 Years 3- Which of the following is not an example of how economic growth can be understated? Global warming and other impacts on the environment Improvements in product quality & technology Less stress-free lifestyle Increased leisure time 4- All of...
Assume that in 2010 the United States will need 2.0×1012 watts of electric power produced by thousands of 1000 MW power plants. These will almost certainly be powered by either coal or nuclear reactors. If all the energy is provided by U-235 burning reactors, how many tonnes of U-235 will be needed annually? NOTE: Rather than using the exact energy from problem 1, please assume that fission of U-235 releases a "rounded" 8.E13 J/kg (Assume a realistic efficiency of 45...
The average US citizen consumes 12000 kWh of electric energy per year an ‘ end use’ number and does not include the energy lost in converting other energy sources, e.g. fossil fuels to electricity. Note also that a kWh (kilowatt hour) is a unit of energy (not power) but a ‘kWh per year’ is a unit of power. The average electric bill indicates that a consumer pays about $0.12 per kWh of electric energy. Your Uncle Joe wants to get...