Recent content by DontDeimos

  1. DontDeimos

    Post your 2015 fall class schedule

    Senior year as an Astrophyics major starting Aug. 24th! 1. Stellar Astrophysics 2. Electricity & Magnetism II 3. Quantum Mechanics 4. Ordinary Differential Equations ( I took this as a combined class with Linear Algebra a while ago, but I'm getting a minor in math so I have to take it...
  2. DontDeimos

    Using Maxwell's equations to derive the continuity equation

    Homework Statement Use Maxwell's equations to derive the continuity equation. B=Magnetic Field E=Electric Field ρ=Charge Density J=Current Density Homework Equations Maxwell's Equations: ∇⋅E=ρ/ε0, ∇×E=-∂B/∂t ∇⋅B=0 ∇×B=ε0μ0(∂E/∂t)+μ0J Continuity Equation: ∇⋅J +∂ρ/∂t = 0 The Attempt at...
  3. DontDeimos

    What are the benefits of joining a scientific forum as a student?

    I am an astrophysics major slowly making my way through my first upper division semester. Many times in desperation I have googled problems and have often been lead to this site (which has been very useful!). I finally decided to make an account and start asking questions of my own. So thanks...
  4. DontDeimos

    Differential equation for a rocket

    Homework Statement A rocket through interstellar dust, no gravity. Solve for v with respect to mass. k is a constant. Drag = -bv Homework Equations [/B] The Attempt at a Solution To start: It should become a separable differential equation, but I am having a lot of trouble solving it...