Recent content by OptimusPwn

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    Capacitance in concentric shells

    So when I do that I get E(r)= Q/4(pi)(R)2Epilsonknot E(2r)=Q/4(pi)(2R)2Epilsonknot E(3r)=Q/4(pi)(3R)2Epilsonknot E(4r)=Q/4(pi)(4R)2Epilsonknot Then I use V=Ed so I integrate this? What am I integrating though, the difference between the electric fields or the distance...
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    Capacitance in concentric shells

    Homework Statement Consider four concentric spherical metal shells of radii r, 2r, 3r, and 4r. The middle two shells are connected by wire, as shown. What is the total capacitance of the system? In your solution, clearly explain your method. Homework Equations u= 1/2cv^2 The...
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    Inductive definition of a palindrome

    A palindrome is a string that reads the same left to right as right to left (as in RADAR). Give an inductive definition of the set of all palindromes. I am having trouble with this problem. So far I think I have the basis, which is an if statement that says, if length of string is even, then...
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