I think you're missing the point. The question stated something along the lines of, a magnet was dropped onto a block of copper- this means that there's relative motion between the two and thus the flux cut by the copper is changing. Because of this, an emf is induced within the copper and...
Yeah you'd want to be talking about lenz's law, eddy currents and interacting opposing magnetic fields producing a retarding force on the magnet to slow it down.
For the second part, my logic went something like : reduced thermal motion within the lattice ---> less electron scattering -->...
I agree with Asylum. I also play guitar, however I'd like to think that I'm openminded when it comes to music. I also don't like a lot of the stuff that is on tv and radio, HOWEVER I generally don't discount its musical value. Well composed music is not necessarily unique, or overly complex. I...
In regards to the 2nd one, here is my answer, summarised: (incidently I just did this question about 2 hours ago!)
- the information is grossly exaggerated and presents feats that exceed the limitations of the human body. consider his motion as a parabola, after 2.5s:
dy = ut + 1/2at^2
0 =...