Recent content by dcfan

  1. D

    Help Solve 90-10 Bronze Problem: Melting, Solidification, Separation

    No ideas someone??
  2. D

    Help Solve 90-10 Bronze Problem: Melting, Solidification, Separation

    Hello, I have difficulties solving a simple problem and would need some help to solve it. Thx very much in advance for your help, very appreciated ! :) Here is the problem: A kilogram of a 90-10 bronze contains 900g copper (100g Sn). Suggest a procedure for obtaining from this bronze at least...
  3. D

    Linear Charge Density and Divergence: Finding the Variation of D

    thx very much Hikaru!
  4. D

    Linear Charge Density and Divergence: Finding the Variation of D

    I don't see how it can help me more to solve the problem...
  5. D

    Linear Charge Density and Divergence: Finding the Variation of D

    Homework Statement If the charge density increases linearly with distance from origin such that pv=0 at the origin and pv=10 C/m^3 at R=2, find the corresponding variation of D. So we know that for R=0, pv = 0 and for R=2, pv=10 C/m^3. We know that the charge density increases linearly from...
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