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  1. J

    Radius of Gyration? REALLY need help

    Radius of Gyration? REALLY need help ASAP!!! Hey - :surprised If any of you can help me with the following problem asap that would be awesome!! A racquet consists of uniform lamina that occupies the region inside the right-hand loop of r^2 = cos 2theta on the end of a handle (assumed to...
  2. J

    Lines and Planes in Space - HELP SOON!

    oh nm oh nevermind... that was a stupid question. I see it now. Got any suggestions on the other problems? :)
  3. J

    Lines and Planes in Space - HELP SOON!

    okay, so it's <-9. -6. 12> Does it make a difference though?
  4. J

    Lines and Planes in Space - HELP SOON!

    I am very confused regarding a few problems in Calculus III. Any help or hints to any of these would be greatly appreciated!! 1.) Are lines L1 and L2 parallel? L1: (x-7)/6 = (y+5)/4 = -(z-9)/8; L2: -(x-11)/9 = -(y-7)/6 = (z-13)/12; The answer says that they are parallel, which I...
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