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Math Help - Law of cooling

  1. #1
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    Law of cooling

    I think the answer to a is dT/dt = -k(T-Ts). For b is k=0.16/(50-Ts) ? Should Ts not be given so that k can be found without any unknowns? Don't give me the answers to c or d since I will proably manage them after getting b.
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  2. #2
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    Re: Law of cooling

    you need T_s to find k in part (b) ... I would use the value of T_s given in part (d)
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  3. #3
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    Re: Law of cooling

    You are correct on both counts. That is the correct differential equation for (a), and it looks like they want a numerical answer to (b) but to get that, you would need to know what Ts is.

    For part (d), it looks like they want you to use the numerical value from (b).

    - Hollywood

    I didn't see skeeter's post earlier. You can get a solution by using the Ts from part (d), but you don't know if that's what the author intended. There's a problem with the question either way.
    Last edited by hollywood; December 31st 2012 at 07:14 AM.
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