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  1. blue.flake

    Sound wave - frequency

    Two identical tuning forks vibrate at 256 Hz. One of them is then loaded with a drop of wax, after which 6 beats/s are heard. The period of the loaded tuning fork is? So, as the uploaded pictures shows, I did solve the problem, but I'm not sure why the f1 frequency is bigger than f2. I mean how...
  2. blue.flake

    Earth stops moving how long before it hits the sun?

    Homework Statement So, if the Earth stopped moving(supposing Earth's orbit is a circle) how much time would it have to pass before it hit the Sun? Homework Equations I've tried with Kepler, and Newton's derivations of Kepler's 3th law The Attempt at a Solution Well I'm pretty sure you need to...