Recent content by invertioN

  1. I

    Vector diagrams and Calculating Angles

    Poster above is correct, your first calculation is wrong. 357 grams is 0.357 kg, so your force is mg=3.4986 N
  2. I

    Using Snell's law to find the entering/exiting rays' angles

    I don't see any attached pictures.
  3. I

    Momentum of a proton in de Broglie wavelength

    Hello there. As you probably know p=mv. From conservation of energy u have mv^2/2 = eU, here you can solve for the velocity v. After that you can use it to end up with answer B)
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