Recent content by wbluem88

  1. W

    Linear/Surface/Volume Charge Density

    Homework Statement (a) A charge of -345e is uniformly distributed along a circular arc of radius 4.00 cm, which subtends an angle of 41°. What is the linear charge density along the arc? (b) A charge of -345e is uniformly distributed over one face of a circular disk of radius 1.90 cm...
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    Parallel Tangent Planes on a Given Surface

    *sigh* I did all the work but it came out wrong :( The normal vector of a plane ax+by+cz+d=0 is specified by [a b c], so the normal vector for 12x+y-3z = 0 is [12 1 -3]. The normal vector of a surface f(x,y,z) at point (x0,y0,z0) is [fx fy fz], so the normal vector for 2x2+y2-z2=64 is [4x0...
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    Parallel Tangent Planes on a Given Surface

    By the way, this is on a review for my final exam. It's not homework, I just know that something similar will be on the final.
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    Parallel Tangent Planes on a Given Surface

    Homework Statement A surface is given by the equation 2x2+y2-z2=64 Find all points p on the surface where the tangent plane is parallel to the plane 12x+y-3z=0. Homework Equations I know the equation of a plane tangent to a surface at point (x0,y0,z0) is given by the equation...
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