Recent content by Meistro

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    Matrix with only real eigenvalues

    Please help me I am hopelessly lost and don't even know where to start! I guess they're right when they said girls suck at math! It's not fair! :redface: Let A be an nxn matrix with only real eigenvalues. Prove that there is an orthogonal matrix Q such that (Q^T)AQ is upper triangular with...
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    Help Me Solve a Physics Homework Problem - Lagrange Points

    Hey a friend asked me for help on his physics homework, and I found this place and was wondering if you guys could help me out. 2: In 1772, the famed Italian-French mathematician Joseph Louis Lagrange was working on the infamous three-body problem when he discovered an intersting quirk in the...
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    What is the escape speed of a rocket on the far side of Ganymede?

    A friend asked me for help on this problem. I don't know much about physics but I did find this place. Any chance you guys could help me? 1: Determine the escape speed of a rocket on the far side of Ganymede, the largest of Jupiter's moons. The radius of Ganymede is 2.64 X 10^6m, and its...
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    Calculating Escape Speed, Lagrange Points, & Stress/Strain of Rope

    I just read the sticky (guess I should have read before posting, lol). These questions are from a friend of mine and he offered me some money if I could help him so I thought I'd go to you guys but I realize now that you don't do homework you just help with it so I will try to figure it out...
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    Calculating Escape Speed, Lagrange Points, & Stress/Strain of Rope

    1: Determine the escape speed of a rocket on the far side of Ganymede, the largest of Jupiter's moons. The radius of Ganymede is 2.64 X 10^6m, and its mass is 1.495 X 10^23 kg. The mass of Jupiter is 1.90 x 10^27 kg, and the distance between Jupiter and Ganymede is 1.071 X 10^9m. Be sure to...
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