Recent content by dsoltyka

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    Undergrad How to find the x,y elements of a 3D vector when origin, direction, z are known

    I did, but the elegance of your explanation would have made it simpler for sure. Thank you :)
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    Undergrad How to find the x,y elements of a 3D vector when origin, direction, z are known

    Nevermind, I was in fact over thinking the solution. It was simple to solve when I used the formula for a 3D line.
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    Undergrad How to find the x,y elements of a 3D vector when origin, direction, z are known

    I believe this is the correct place to post this as I believe I'm going to need to solve this as a linear system, however I suppose it might be solvable using trig as well. However, I've been at it for a while and I'm out of ideas and I think I'm missing something silly. Consider the...
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    Undergrad Calculating Position on a Trajectory - Derivation of Equation of Motion

    Oddly enough, I came here to ask a similar question. I'm trying to implement a similar situation in a game, but I'm having issues coming up with a good formula. If I have an object starting an an arbitrary point in 2d space (x,y), how can I calculate the trajectory angle needed in order to...
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    What Determines the Net Force in a DNA Molecule?

    I am trying to solve this same problem. The two strands of the helix-shaped DNA molecule are held together by electrostatic forces as shown in figure 16-44. Assume that the net average charge (due to electron sharing) indicated on H and N atoms is 0.2e and on the indicated C and O atoms is...