Recent content by compuser123

Thanks guys. Your answers are much appreciated.

Although this has biology in it, I still think it qualifies more as a physics question. If you take person and hang them upside-down long enough, blood will pool in their head and they will eventually die because of the pressure on their brain. I know that in the uterus, an unborn baby is...

I would recommend your friend learn about the experiments of Dalton, Milikan, Rutherford, Thomson, and others. Each experiment discovered something about the atom. It was a black box. You could indirectly guess what was inside, but you could not see. These days, you could see the valence shells...

Thanks guys. Your help is much appreciated.

I've read other posts about this but I don't think this question was covered. Say you have two objects with different masses in a vacuum sitting on some kind of plank. Next, you remove the plank from both at the same time. The heavier object has a greater inertia, which means that it has a...

Awesome. Thanks a lot, your vector pic. really helped.

As I am bringing it to its final speed, my hand is moving in arc. So my hand is also providing the speed?

I am having trouble understanding tangential speed as it applies to uniform circular motion and I would appreciate any help. Say I have a ball on the end of a string that I hold with my hand and rotate at a constant speed. If the string provides the centripetal force and acceleration, where...

Thank you very much, will do it right away.

Hello, I would like to thank all of the contributors on this site. You have helped me in more ways than I can count. I am struggling with the following concept and was wondering if anyone could clarify this. As the electron gets further away from the nucleus, its energy increases. This makes...