Recent content by dliu1004

  1. dliu1004

    High School Questions regarding Magnetorheological fluids

    Hello, has anyone worked with magnetorheological fluids before? I plan on creating one for a project by using carbonyl iron powder, a surfactant, and some oil. I have heard that when subject to a current, these liquids basically become solids. However, I am not sure if they become complete...
  2. dliu1004

    Question on a Gauss's Law problem

    Summary:: I understand the basics of Gauss's Law and how to solve some of the simpler problems, but I cannot seem to solve these two questions. For question 007, one of my friends told me I had to ignore the outer shell? I did that: I integrated rho dV: (6.02*r*pi*r^2*h) from r=0 to r=.0462...