Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 2, Problem 20P
To determine
Calculate the year in which the population will reach
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Consider an island with a population density of 50 people/km2 . If the annual growth is 2%, determine the year in which the population density be equal to 20,000 people/km2
A water treatment plant in a city is to be upgraded to meet the needs of the population in the year 2025, and the water distribution system is to be expanded to meet the needs of the population in the year 2045 or 2055. The 2010-population of the city was 225000, and based on a saturation population of 2,500,000, the 2070-population is estimated to be 420000. Estimate, using decreasing rate of increase method, the city's population in 2025, 2045 and 2055 to facilitate the design of these systems.
Don't attempt wrong
The population of a city in the year 2000 was 82,300.
If average percent increase in population of the city
in the year 2020 estimated geometrical increase will
nearly be
Given r-35% per decade.
Chapter 2 Solutions
Sustainable Energy
Ch. 2 - A quantity has a doubling time of 110 years....Ch. 2 - The population of a particular country has a...Ch. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - The total world population in 2012 was about 7...Ch. 2 - The population of a state is 25,600 in the year...Ch. 2 - The population of a country as a function of time...Ch. 2 - Prob. 9PCh. 2 - Prob. 10PCh. 2 - Prob. 11P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- A city has 3,400,000 capita and current domestic demand is 185 liter/capita/day. The population average increase is 20,000 capita per decade; and the increase is also estimated as 1.35%. The average consumption of water increases by 22% in summer and decreases by 18% in winter. There are industrial and commercial activities in this city. Forecast future population by two methods. Calculate the average domestic demand for this city after 50 years in normal, summer and winter days. Estimate the firefighting demand. Then calculate total average water demand. Finally determine the maximum hourly and maximum daily demands.arrow_forwardRead the question carefully and give me complete solutions. Please don't miss anything.arrow_forwardThe population of a city in the first three continuous years is given as 6000, 8000 and 10000 respectively. What is the population of the city in the fourth continuous year, according to the geometric increase method?arrow_forward
- Population of a town today is 10000. The population has decreased steadily at the rate of 1% per year for last 10 years. Determine the population at the end of each year in the last decade.arrow_forwardA city has a recorded population of 120,000 and 140,000 in the years 1980 and 2015 respectively. If the city has a saturation population of 180,000 then estimate the 2030 population using declining rate of growth.arrow_forwardIn 2007 the average growth of the global population was 1.2 percent per year. (a) Determine the doubling time expected for the global population using this information. (b) What might prevent the population from reaching this level?arrow_forward
- Please solve the question quicklyarrow_forwardThe population growth (P) at any time in a city is governed by the equation (B-Dr)P, where t is the time (in years) and B and D are the birth and death dP dt rate, respectively. If B=0.1, D=1x10 and P = 10000 person, find: (a) P at any time. (b) P after 10 years.arrow_forwardUsing geometric increase method. Find out population in the yera 2021, 2031 and 2041. In the year 1971 the population was 84000, year 1981 it was 115000, in the year 1991 population was 160000, the year 2001 the population was 205000 and the year 2011 it was 250000.arrow_forward
- Solve the following application problems. The population of a certain community is known to increase at a rate proportional to the number of people presently living in the community. If after 5 years the population has doubled and after three vears the population is 10.000. What was the initia population? What will be the population in 10 years?arrow_forwardGiven Data: total population of District Peshawar in 2017= 4269079 which include, Urban = 1970042 and rural = 2299037 Average annual growth rate is 3.99 from 1998 to 2017. Use 8 percent growth rate for Urban population alone. Question: Calculate the future population of the District Peshawar in 2030. Use the formula P f = P i *(1+r) t Calculate the future urban population of Peshawar in 2030. Use the formula given above. Please solve it step wiselyarrow_forwardI need the solutionarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
