Recent content by Quinn Pochekailo

  1. Q

    Finding the stream function given velocity components

    Homework Statement The velocity components in a steady, incompressible, 2-D flow field are u = 2y v = 4x Find the corresponding stream function. Homework Equations u = ∂Ψ/∂y v = -∂Ψ/∂x The Attempt at a Solution I can verify that a stream function exists for this problem because...
  2. Q

    Finding Angle of String with Two Charged Balls

    Homework Statement http://loncapa.vcu.edu/res/vcu/phys202/zzImages/Ch25_TB.jpg A charged ball with charge Q1 = 0.1 μC and mass 0.05 kg is suspended from a ceiling with a thin massless string as shown in the figure. The second charged ball has a net charge Q2 = -0.5 μC and it is located d = 0.3...
  3. Q

    Comparing V and SA of a torus vs sphere

    How would the formula change if R<r ? I would assume it looks closer to the formula for the volume of a sphere.
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    Comparing V and SA of a torus vs sphere

    Homework Statement A torus has a major radius and a minor radius. When R>r by a magnitude of at least 4x, it comes to be a slim ring looking shape. When R>r by a magnitude of 1/2, the shape looks to be a donut. When R=r, the torus shape looks more like a sphere except with a small gap in the...
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    Can I Successfully Take Calc 3 and Linear Algebra at the Same Time?

    Of course! My apologies for not doing so in the beginning. Calc 3: The calculus of vector-valued functions and of functions of more than one variable. Partial derivatives, multiple integrals, line integrals, surface integrals and curvilinear coordinates. Lagrange multipliers; theorems of Green...
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    Can I Successfully Take Calc 3 and Linear Algebra at the Same Time?

    Hi Mark, I received an A in calculus 1 and just took my first exam in calculus 2. Grade is pending. It covered integration with parts, trig substitution, and partial fraction decomposition. Out of 15 questions, I had difficulty with one question until after the exam when I tried doing it again...
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    Can I Successfully Take Calc 3 and Linear Algebra at the Same Time?

    Hi all! I have an important decision to make for the summer of 2016 and I need some advice from some who have taken these courses. I need one biology lab elective to graduate, but it is a field lab and it runs from from 5/13 - 6/19. Because it is a field lab, I will not be able to take other...
  8. Q

    Need help computing force of a defibrillator

    Sure. (1/2) * (110 microfarads * 10^-6) * (600 V^2) = 19.8 J 19.8 J = mgh 19.8 J = (93 kg) (9.8 m/s2) h h = .0217 m Thank you for the tips and advice.
  9. Q

    Need help computing force of a defibrillator

    Okay so my calculations are .5(110 * 10^-6)* (600^2). The stored energy would be 19.8 volts/charge, which I divide by (9.8*93) which would give me the height in meters. Thank you for the help berkeman!
  10. Q

    Need help computing force of a defibrillator

    I think I know what you are referring to, and it would be C= Q/V
  11. Q

    Need help computing force of a defibrillator

    Based off my notes from lecture, the closest equation I can find would be Energy = Q^2/2C
  12. Q

    Need help computing force of a defibrillator

    Homework Statement In a TV-show, an inexperienced doctor touches the electrodes of a defibrillator and gets thrown across the room. For a moment assuming that all the energy (and only the energy) from the defibrillator goes into tossing him around, what is the maximum height above ground he...
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