Recent content by erwinxa

Thank you Thank you. Much appreciated!

thank you, I have read the section you recommended, but I thought the concept of relativistic mass was "dated", at least according to my text. my text states that mass is "now" considered an invariant. Have I misread, and am I misunderstanding the point?

An object having mass of 90 kg and traveling at a speed of 0.850c collides with a stationary object having mass 1400 kg. The two objects stick together. (8pts) a) Find the speed of the composite object.b) Find the mass of the composite object Hello, I would appreciate any insight into...

thank you! I will look into it. I appreciate it.

Hello everyone. I am searching for a book full of practice problems in Electricity and Magnetism and was hoping someone could recommend some. I have been searching on my own, but could not find any. I have a classmate who has one from china, where it is pure questions relating to the subject and...