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You are not logged in. #1 20121008 10:58:37
DiffEq Mixing ProblemsI am having difficulty getting the correct answers to two mixing problems. If anyone would kindly help me out, it'd be much appreciated! #2 20121008 19:20:26
Re: DiffEq Mixing ProblemsHi The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #3 20121009 02:22:46
Re: DiffEq Mixing Problemshi Eileen That looks good to me, but I'm very confused by what you then did. It's a linear differential equation requiring an 'integrating factor'. Rewrite as The integrating factor is just (t + 25) t= 0 A = 0 makes C = 0 Put t = 25 So concentration is Bob You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #5 20121009 18:52:31
Re: DiffEq Mixing ProblemsI also think that in 2, you calculated the function incorrectly in the second step. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment 