Recent content by Marcis231

  1. M

    Determining an object's velocity in cylindrical coordinates

    I got the answer for velocity and acceleration. But I don't know how to draw the shape of the particle's motion over time. How to draw it? should we change a,b,c,e into a numbers or not? or we may not to change a,b,c,e? Please help me how to draw the shape of particle's motion over time?
  2. M

    Determining an object's velocity in cylindrical coordinates

    I got the answer for velocity and acceleration. But I don't know how to draw the shape of the particle's motion over time. How to draw it? should we change a,b,c,e into a numbers or not? or we may not to change a,b,c,e? Please help me how to draw the shape of particle's motion over time?
  3. M

    Engineering Contact pontential for a semiconductor

    Anyone can help me, which formula I should use for this question?
  4. M

    Engineering How Does Electron Mobility Relate to Conductivity in N-Type Silicon?

    Thank you, I got the answer from that formula after read "Relation to conductivity"
  5. M

    Engineering How Does Electron Mobility Relate to Conductivity in N-Type Silicon?

    I still not understand about this, i found so many formulas but I don't know which one i should use for this question
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