Recent content by andycampbell1

  1. A

    1st Order Linear ODE integrating factors

    Thanks for your time. I appreciate it.
  2. A

    1st Order Linear ODE integrating factors

    You're right I'm pulling my hair out with it already, i'll get there in the end though! Just one last thing though. How would the anti derivative e^ax work? I'll be harassing my lecturers tomorrow haha.
  3. A

    1st Order Linear ODE integrating factors

    My level of maths is not too good I have to admit. I was on an easier degree course last year which had a background in the built environment it still had some maths and physics elements but wasn't as heavy on integration and differentiation. The course transferred over to a harder engineering...
  4. A

    1st Order Linear ODE integrating factors

    Ok I see that one of the exponents was -1.4 so adding that 0.8 will give us 0.6. I have checked out my notes I just have a basic list of integrals and can't seem to find anything similar online for eax so would it be similar to eax+b where I would just miss out the plus b part? So it would...
  5. A

    1st Order Linear ODE integrating factors

    This is what I had e0.8x = ∫ e0.8x*0.6e-1.4x So should it be this instead where the multiplying exponents just add together? e0.8xy = ∫0.6e-2.2x What would happen now? Would the rhs integrated become 0.6 ln(-2.2x) ?
  6. A

    1st Order Linear ODE integrating factors

    Homework Statement Hi, I submitted this question on here the other day a user suggested some topics which might help so I have went away and tried this and this is what I have came up with. I just want to know what I have so far is right also I need help with integrating the rhs of the...
  7. A

    Fourier series integration help required.

    Hi thanks for the help things are starting to make sense now so just so I'm clear my expressions should be 1.7x + 1.7 and 1.7x - 1.7
  8. A

    Fourier series integration help required.

    No, we covered Fourier series over an hour we didn't really get into it much we got a couple of pages of notes and some examples nothing like that was mentioned.
  9. A

    Fourier series integration help required.

    I haven't drawn it yet I have an example from my lecturer which is similar up until that point, when I have to integrate using 1.7(x+1) on the example there is no mention of odd or even numbers. I couldn't tell you if it mattered or not.
  10. A

    Fourier series integration help required.

    Homework Statement I have a periodic function which has a period 2, which is defined as f(x) = ( 1.7(x + 1) , -1 ≤ x < 0 With f(x+2) = f(x) for all x ( 1.7(x - 1), 0 < x ≤ 1 I have to determine a0The Attempt at a Solution I have started this as a0 = 1/T ∫ top limit = T/2...
  11. A

    Solve an ODE using exact methods?

    Hi sorry your probably right that it should be (1.4) there is also an x on the outside of the bracket meaning it would be e^(1.4)x. I don't know what integrating factors are. This subject is a bit of a mystery to me I've gone through the class notes about half a dozen times and I just can't...
  12. A

    Solve an ODE using exact methods?

    Homework Statement dy/dx + 0.8 y = 0.6 e ^-(0.6+0.8) , y(0) = 1 Solve this ordinary differential equation subject to the given condition using exact methods and evaluate the solution y for x = 0.0 (0.05) 0.5, i.e from x = 0 to x = 0.5 in steps of 0.05). Hi, am pretty...
  13. A

    Thermodynamic Steam Generator Problem.

    How would I work this heat transfer out? I have a volumetric flow rate would I need to convert this to a mass flow rate?
  14. A

    Thermodynamic Steam Generator Problem.

    Homework Statement I have a problem which I will attach a picture of, regarding a system composing of a heat recovery steam generator and a turbine. I have to work out the power output of the turbine, which I think I will be fine with. What I would like to know is, how does the combustion...
  15. A

    Measure acceleration of a space capsule.

    Hi, I have been checking out basic spring accelerometers. What I would like to know if it is possible to use mass on the end of a spring to calculate g-force and would it be possible for someone to point me in the right direction for how I would begin to do this Thanks
Back
Top