Recent content by lawmaker

  1. L

    Displacement of Oscillating Block: y=A cos(ωt+ø)

    I am so sorry. It is spring constant times the square of the amplitude the whole divided by 2=0
  2. L

    Displacement of Oscillating Block: y=A cos(ωt+ø)

    Kinetic energy is 0 at the extremes in simple harmonic motion.So, Spring constant\times amplitude\div2=0. This gives you the value of k(spring constant). Now you can solve the problem easily.
  3. L

    Displacement of Oscillating Block: y=A cos(ωt+ø)

    They should have given the value of spring constant k.
  4. L

    Question about photoelectric effect equation

    n represents the number of photons ejected from the metal. According to the frequency of the light wave & its intensity, we can obtain the no. of photons. E=nhv
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