Recent content by Grace Pseudonym

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    Mass Given Density Function and Area

    Thank you everyone for your help :)
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    Mass Given Density Function and Area

    UPDATE NO. 2: I figured it out.
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    Mass Given Density Function and Area

    UPDATE: I have converted to polar coordinates, giving density = 1.2 r Cos[theta]+ 0.7 r Sin[theta]. Then I solved the following integral: This gave me 8.55 g which was incorrect. Where am I going wrong?
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    Mass Given Density Function and Area

    Homework Statement A quarter disc of radius 3 cm lies in the first quadrant. The areal density is (1.2 g/cm3)x + (0.7 g/cm3)y. Determine the mass of this object. Homework Equations The Attempt at a Solution For my bounds: x: 0 to 3 y: 0 to Sqrt[3 - x^2] When I took this integral I got...