Recent content by Spock2230

Seems to me these causality loops form a predestination paradox. The premise for the woman to live so long is that she received information from her future self who has lived long enough because she had received information that has allowed her to live this long, ad infinitum. Whether or not...

Thanks! I missed the fact that reaction pairs are forces of similar nature. And the diagram by ehild clears things up a lot.

Thanks for replying. I'm rather confused about this. http://www.regentsprep.org/Regents/physics/phys01/friction/38deg.gif In a case like this (no circular motion), is the normal force acting as reaction force? If it is, why would it be any different for an object in circular motion? I...

Hi all, For a marble in uniform circular motion within a smooth cone, what is the relationship between the normal force by the surface of the cone and the weight of the marble? My take is that the normal force forms a reaction pair with one of the resolved forces of weight. I have resolved the...

Hi Q-reeus, thank you very much for your time and the detailed explanation. I understood the differential equations, but I don't get why d(B-field) cannot be 0. Could you take a look at this picture please? This is what my physics teacher drew, to explain. The EMF induced by either sides...

Hi Q-reeus, thanks for your reply. I'm just a high school student, so I'm not very sure what a 'differential flux linkage' is. Could you please tell me more? You see, I was discussing with my physics teacher about this, and he's contention is that, since the magnet is entirely contained in...

In a Faraday flashlight, a magnet is shaken to and fro in a solenoid to induce an EMF and thus current. Something like this: http://express.howstuffworks.com/gif/autopsy-flashlight-tube.jpg If the solenoid were to cover the entire length of the interior, and thus the magnet is only moving...