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  1. J

    Confused with the answer<> seems correct buttht's wrong wrong?

    Are you sure that your solution doesn't satisfy those equations? When you take the square root of a number, how many solutions do you get?
  2. J

    Centrifuge Motion Equations

    Woops, I knew I scribbled that out too fast. That'll teach me to post on a message board when I'm supposed to be working. Sorry about that.
  3. J

    Centrifuge Motion Equations

    Maybe I just worked this out too quickly but, check my math here: Assuming you're comfortable with approximating instantaneous acceleration with \dot{\omega}=\frac{\omega - \omega_o}{\Delta t} then: G^2 = 1 + \left( \frac{\omega^2 R}{g}\right)^2 + \left( \frac{\dot{\omega...
  4. J

    Lenght in a circle

    It's called a chord.
  5. J

    Hill grade

    You might want to try posting questions like this in the Homework Help Forum. Anyway: 8\% = \frac 8 {100} = \frac{\rm rise}{\rm run} = \frac{800}{\rm run} Solve for the run.
  6. J

    Euclidean Linear Combination

    Well, it's been like forever and a day since I did problems like this, but I think it goes something like this: 154x + 260y = 4 260 = (1)*154 + 106 154 = (1)*106 + 48 106 = (2)*48 + 10 48 = (4)*10 + 8 10 = (1)*8 + 2 8 = (4)*2 4 = 2*2 = 2*(10-8) = 2*(10-(48-4*10)) =...
  7. J

    Calculation Software

    You can check out Octave. It's a lot like MATLAB, only free.
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