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...
Well my biggest problem is I get to a point where I have T= √4Π ⋅ (r/2)3 / G ⋅ Ms
and then it seems I should divide T with two, which I don't understand why. Also in this step i don't understand why it's r/2 and not r
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?
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...