For example, some inexpensive mowers are designed to have a service life of 200 or fewer hours while pricier mowers typically are designed to last 500 or more hours. Therefore, a lawnmowerâs life expectancy can be based on how often and how long it is used.
exponential growth. Increase in number or size, at a constantly growing rate. It is one possible result of a reinforcing feedback loop that makes a population or system grow (escalate) by increasingly higher amounts. Compound interest is an example of exponential growth. Use 'exponential growth' in a Sentence.
C. Fundamental population growth parameters. 1  lambda = Nt+1/Nt = finite rate of increase of the population in one time step (often 1 yr). 2  r = ln[lambda] = ln[Nt+1/Nt] = instantaneous rate of increase; 3  1. Population growth or decline follows an exponential curve. 4  2. Growth rates are constant (for deterministic growth).