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- What is a carrying capacity? What kind of model has a carrying capacity built into its formula? Why does this make sense?Given problem: Tank A contains 203 litres of brine holding 112 N of dissolved salt, and tank B contains 203 litres of fresh water. If brine runs out of tank A into tank B at the rate of 14 litres/min while the mixture, kept thoroughly stirred, is pumped back to the tank A from tank B at the rate of 14 litres/min. When (in min) will the amount of salt in tank A be twice that in tank B? (Hint: The total amount of salt in both tanks at any time is 112 N.)Find the number of years of ownership for which the cost of Ben (Problem attached) of owning Model A equals the cost of owning Model B.
- The costs for two different kinds of heating systems for a small home are given in the herewith attached table. After how many years will total costs for solar heating and electric heating be the same? What will be the cost at that time?my question is: If one earthquake has a magnitude of 5 on the Richter scale and a second earthquake has a magnitude of 6, what is the relationship between the intensities of the two earthquakes?The following problems show that most people live in places that are more crowded than average. In each case, find the average size of a city, the average crowding a person experiences, and the fraction of people who live in places more crowded than average. There are three cities, one with 100,000 people, one with 400,000 people, and the other with 1,000,000 people.