Recent content by Icaro Amorim

Chestermiller, can you advise me a better book for the same subject? Thank you all guys for the support. It was really helpful. I'm learning by myself and I thought I had misunderstood. I appreciate. :) Greetings from Brazil.

Thank you! Yes, it is from a textbook. From Resnick, Introduction to Relativity.

Homework Statement A rod of rest length 1,0m is moving longitudinally on a smooth table with a velocity 0,8c relative to the table. A circular hole of rest diameter 1,0 m lies in its path. The diameter of the hole as seen by the rod is going to be larger?Homework Equations The Attempt at a...

Thanks, maajdl. Greetings from Brazil.

Homework Statement At what speed v will the Galilean and Lorentz expressions for x differ by 0,10 percent? Homework Equations xL= (x'+vt')/√(1-(v/c)²) (Lorentz Transformation) xG=x'+vt' (Galilean Tranformation) The Attempt at a Solution I've tried: xG/xL = √(1-(v/c)²) =...

That's the problem. I don't know how to apply conservation of angular momentum. I tried M*v1*(R1/tgθ1) = M*v2*(R2/tgθ2) where R/tgθ is the distance from the point O to the plane of motion and it was incorrect. Can you tell me why?

Homework Statement Hello, guys. I'm not a native english speaker, so don't mind if I wrote something incorrectly (if you find any error or difficulty in what I wrote just inform me, please). A little ball is hold by a thread of negligible mass which moves round a vertical axis with constant...