Recent content by ksio.amaral89

2 questions,actually: 1-Why in Dymensional Analysis is eletric charge a basic physical dimension instead of eletric current(as Ampere is a SI base unit and Coulomb isn't)? 2-I've read CIPM(or International Committee for Weights and Measures in English) is proposing new definitions for some of...

Yeah,that really makes sense.The solution was not so simple as I expected it to be,but I got it now.

Can you describe( graphically,like a diagram,or a picture) how a friction force plays the role of the centripetal force?For example, a car performing an uniform circular motion on a plane in a idela situation.The car will perform the turn because of friction forces between tyres and...