Recent content by markem

Bump, I've got essentially the same question.. Given a body and all the forces acting upon it, apart from resorting to physical intuition, how are we to locate its axis of rotation?

This answers the question, thanks! However, about the DC part, often AC is rectified to High Voltage Direct Current (HVDC) for long-distance power transmission especially, then run through an inverter and then stepped down through a transformer for local grids. Apparently DC has lower power...

Hi, Power transmission over long distances from power plants to local power grids is often done over DC with relatively high voltages/tensions. The argument for this is that since, by Joule's law, power dissipation due to heat by a resistive element is given by I^2 * R, lowering the current...

lalabtros, thank you so much for your reply. Finally elucidated something I was stuck on for a long time, namely, how could momentum be conserved when energy (supposedly) wasn't. Thanks a ton!

Sorry to bump this thread but I've been digging around on the web trying to find an answer to the same worry. Suppose as a conceptual "limiting case" we have an inelastic collision where the initial speed of something is, say, 1 m/s, followed by an inelastic collision with another object where...