Recent content by catmunch

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    Good Theory-Intensive Introductory Diff Eq Textbook

    I am currently taking an introductory course to DE's that has a heavy emphasis on theory (my professor stresses that this is a math course, not an engineering/applications course). Unfortunately, my professor, though he tries hard, is not good at explaining anything. Even more unfortunately, the...
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    Help Needed: Understanding Gauss' Law for Magnetism & 'Local Form

    I'm stumped on a problem about Gauss' Law for Magnetism because I don't know what "local form" is. From context, I suspect that local form refers to the expression of an equation with the del operator (i.e. del x E = (charge density/(E0)), but I'm not sure. I've been self-teaching with Tipler...
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    Why do I get a different answer with the parallel axis theorem?

    I just realized my problem. When using the parallel axis theorem, you need to plug the rotational inertia around the center of mass into the formula. I just took the line that was equidistant from the points. And then, with the correct center of mass, I again calculate 60kg*m^2. I guess my...
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    Why do I get a different answer with the parallel axis theorem?

    Could my problem be that I'm applying the parallel axis theorem to a simultaneous shift in both the x and y dimensions?
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    Why do I get a different answer with the parallel axis theorem?

    Why do I get a different answer with the parallel axis theorem? [Solved] Homework Statement Imagine four points masses m1 = m3 = 3kg and m2 = m4 = 4 kg. They lie in the xy plane with m1 at the origin, m3 at (0, 2), m2 at (2, 2), and m4 and (2, 0). Each unit on the coordinate plane...
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