Recent content by conorordan

  1. C

    Best way to visualise data outputted from a C program

    Homework Statement I've written some C code that models the motion of two masses attached to a wall (and each other) by springs like this. The output file is 5 columns; the time, and the positions and velocities of each block at that time. I'm not sure how to visualise my data...
  2. C

    How Can You Simplify This Boolean Expression Using Three Gates?

    Homework Statement R=(A \cdot \overline{B})+(\overline{A} \cdot B) Using Boolean algebra, including the complement relation D\cdot \overline{D}=0, convert R to a form that uses one NAND, one AND and one OR gate (a total of three gates). Homework Equations de Morgan's theorem...
  3. C

    Why Does a Magnetic Field Do Zero Work?

    Homework Statement This isn't strictly homework, I'm going over my lecturer's notes before the exam and I don't understand a part of this proof for magnetic fields doing no work. This is the second proof he gave, the first being the more standard \vec{B}\cdot\textit{d}\vec{l}=0...
  4. C

    Transforming Lines to Circles in the w-plane

    okay I substituted z into the transformation but I cannot get an equation of a circle to come out, where do I go from here?
  5. C

    Transforming Lines to Circles in the w-plane

    Homework Statement "The transformation T from the z-plane to the w-plane is given by w=\frac{1}{Z-2} where Z=x+iy and w=u+iv Show that under T the straight line with equation 2x+y=5 is transformed to a circle in the w-plane with centre \left ( 1,-\frac{1}{2} \right ) and radius...
  6. C

    Using trig to find solutions to a quintic

    Indeed! Thanks for the help!
  7. C

    Using trig to find solutions to a quintic

    Okay I see now, so x=cosθ for π/5, 5π/3 and π will give me my 3 solutions?
  8. C

    Using trig to find solutions to a quintic

    Are you suggesting I plot graphs of cos x and the horrific quintic above? It must be much simpler, this is only a 4 mark question!
  9. C

    Using trig to find solutions to a quintic

    Well there are infinite solutions to it, how am I to know which 3 will satisfy the quintic above?
  10. C

    Using trig to find solutions to a quintic

    Homework Statement Given that cos5θ=16cos^{5}θ-20cos^{3}θ+5cosθ Find the 3 solutions to 16x^{5}-20x^{3}+5x+1=0 Homework Equations The Attempt at a Solution I have let x=cosθ and θ=cos^{-1}x and I know that cos5θ=-1
  11. C

    Simple Harmonic Motion with Impulse

    Homework Statement A particle P of mass 0.6kg is attached to one end of a light elastic spring of modulus of elasticity 72N and natural length 1.2m. The other end of the spring is fixed to a point A on the smooth horizontal table on which P rests. Initially P is at rest and is 1.2m from A...