Recent content by dakar76

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    Shell Method Help - 24pi(-2/5y^2+7/5y^3-y^4)dy

    Homework Statement X=12(y^2-y^3) Rotation is around y=-2/5 Homework Equations V=2pi from the integral of a to b (shellradius)(shell height) dx The Attempt at a Solution 2pi (-2/5+y)(12)(y^2-Y^3)dy 24pi (-2/5+y)(y^2-y^3)dy 24pi (-2/5y^2+7/5y^3-y^4)dy 24pi...
  2. D

    Finding Magnitude & Angle of Vector A (4.0m, -3.0m)

    Problem: The vector A = (4.0meters)i + (-3.0meters)j Find a) its magnitude and b) its angle in relation to i. Question: I know magnitude is a scalar but don't know what I am really trying to find in this problem. Am I looking for the direct point from the start of i to the end of j? Do I...