Recent content by johnchang

  1. J

    Calculating Wave Speed of a Sinusoidal Wave with a Given Equation

    Thanks I got it.
  2. J

    Calculating Wave Speed of a Sinusoidal Wave with a Given Equation

    pls help me on this problem, thanks a lot. A sinusoidal wave is described by y=(0.30 m)sin(0.20x-40t). Determine the wave speed.