Recent content by cchase88

  1. C

    Using the definition of the partial derivative

    I got that answer by using derivative rules, and not by the definition. When you plug in x+h for x you get sqrt[x+h].. and that's where I'm getting stuck. I come out getting this: (4hy + (sqrt[x+h] - sqrt[x])y^2)/h
  2. C

    Using the definition of the partial derivative

    I need some help with this partial derivative. I can do it by rules, but when I try and do it out using the definition of the partial derivative, I run into problems. Homework Statement Find the partial derivative of sqrt[x]y^2 - 4xy with respect to x The Attempt at a Solution Going...
  3. C

    Flywheel Angular Velocity Problem

    Thank you both for your help. I forgot about that 1/2. I guess that's what I get for doing a problem at 4 in the morning :rolleyes:
  4. C

    Flywheel Angular Velocity Problem

    Homework Statement A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center. Rotating flywheels provide a means of storing energy in the form of rotational kinetic energy and are being considered as a possible alternative to batteries in electric...