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Nov
16
awarded  Popular Question
Oct
23
awarded  Notable Question
Oct
4
awarded  Popular Question
Jul
2
awarded  Curious
May
29
awarded  Famous Question
May
12
awarded  Notable Question
Feb
14
awarded  Popular Question
Feb
13
accepted Deriving demand functions given utility
Feb
13
accepted Exponential decay and time constants
Feb
13
accepted Modelling differential equations
Feb
13
accepted Time constants and steady states of decaying quantities
Feb
11
asked Exponential decay
Feb
6
revised Time constants and steady states of decaying quantities
added 38 characters in body
Feb
6
asked Time constants and steady states of decaying quantities
Feb
4
comment Exponential decay and time constants
@StefG Thanks for the link! I'm just a little confused because their proof uses integration by parts and not $t = \tau$ to show that the mean lifetime or time constant is related to the decay rate: en.wikipedia.org/wiki/…
Feb
4
asked Exponential decay and time constants
Jan
30
comment Modelling differential equations
Thanks. I think $r =\frac{r_0}{2}$, this gives me $\lambda = \frac{ln(2)}{5230}$. Also, if Iodine 131 has a half-life of 8 days, does that mean $t = \frac{8}{365}$?
Jan
30
asked Modelling differential equations
Jan
19
comment Equilibrium solutions of differential equations
@Amzoti Thank you. I still can't make sense of the $t^2−1$ factor on the right hand side. Is this an example of a nonautonomous DEQ? There is no mention of nonautonomous equations in the chapter the question pertains to so I tried searching for similar questions online but to no avail.
Jan
19
accepted Equilibrium solutions of differential equations