Suppose that a certain population has a growth rate that varies with time and that this...
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Suppose that a certain population has a growth rate that varies with time and that this population satisfies the differential equation dy y (0.5 sint) + dt NOTE: Round your answers to two decimal places. = a) If y(0) 1, find (or estimate) the time 7 at which the population has doubled. Choose other initial conditions and determine whether the doubling time 7 depends on the initial population. The doubling time is 7 = The doubling time does not depend on the initial population. b) Suppose that the growth rate is replaced by its average value Determine the doubling time 7 in this case. In this case, T = 1 10 c) Suppose that the term sint in the differential equation is replaced by sin(2t); that is, the variation in the growth rate has a substantially higher frequency. What effect does this have on the doubling time 7? In this case, T = Suppose that a certain population has a growth rate that varies with time and that this population satisfies the differential equation dy y (0.5 sint) + dt NOTE: Round your answers to two decimal places. = a) If y(0) 1, find (or estimate) the time 7 at which the population has doubled. Choose other initial conditions and determine whether the doubling time 7 depends on the initial population. The doubling time is 7 = The doubling time does not depend on the initial population. b) Suppose that the growth rate is replaced by its average value Determine the doubling time 7 in this case. In this case, T = 1 10 c) Suppose that the term sint in the differential equation is replaced by sin(2t); that is, the variation in the growth rate has a substantially higher frequency. What effect does this have on the doubling time 7? In this case, T =
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Solution a To find the time at which the population has doubled we can solve the differential equation dydt 05 sinty5 with the initial condition y0 1 We can use the method of separation of variables t... View the full answer
Related Book For
Intermediate Accounting Volume 1
ISBN: 978-1119496496
12th Canadian edition
Authors: Donald E. Kieso, Jerry J. Weygandt, Terry D. Warfield, Irene M. Wiecek, Bruce J. McConomy
Posted Date:
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