Recent content by Klarinettus

  1. K

    Stupid question about page 70 in a first course in GR

    Terilien, I am also a high school student that's beginning to learn some GR. I guess my math background is pretty similar to yours (had multivariate, currently taking diffyq and linear algebra). Might I ask what book you're working from? How well is it working for you? I've been using...
  2. K

    Understand 'One Form' Vector & Covariant - Relativity Demystified

    An example I am also beginning to learn some of these things. Let me share a simple example that really helped me. Imagine you are driving a car across a field, and your car is equipped with a thermometer. Your car is moving at a rate of 10 meters per second, and the temperature rises as...
  3. K

    Using Differential Equations to Solve for Particle Motion in a Force Field

    You're not understanding what I'm asking. You are not given a(t). You are given a field assigning a force or acceleration to every point in space. Also, you're given the particle's initial position and velocity. The goal is to find the position as a function of time. To make things simple...
  4. K

    Using Differential Equations to Solve for Particle Motion in a Force Field

    I wasn't sure whether to put this in the math section or the physics section because it's a bit of an overlap problem. I want to know how to find the position as a function of time of a particle given its acceleration as a function of position. I know this is some sort of differential...
  5. K

    Schools Highschool senior seeking college advice

    This year, I am entering my senior year in high school. I plan on majoring in physics, but I'm having some trouble deciding where to apply. Obviously, I'm not going to decide where I go to college based solely on advice given in an online forum, but I'd appreciate a couple nudges in the right...
  6. K

    How to compute Standard Deviation TI-83

    Enter your data into a list. Hit stats, Calc, 1-Var Stats, select the list you put the data into. S_x is the standard error. \sigma_{x} is the standard deviation.
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