Recent content by Razzor7

Homework Statement 3 forces act on a particle, it is in equilibrium, I am told about two of the three, asked to find the third. We have a certain force A and it is in the y-z plane, described by a certain angle Beta. Then I'm told that there is a second force B in the x-z plane, described by...

so I'm using my laptop outside while also wearing polarized sunglasses. I've only taken up thru physics 2 and it's the summer so ( ) and I'm not mentally on my A game so to speak. But I want to know if my impression here is close to correct or the...

I need to know if nuclear material equal in volume to two marbles could be reacted in a way to cause an EMP that would disrupt an average complexity computer system (e.g. laptop). My suspicious is that this wouldn't reach critical mass, wouldn't create a chain reaction, and .'. no EMP. But I...

Thanks for that answer. Where are the electrons in a current carrying superconducting loop? It seems like they'd go toward the outer edge, centripetal force supplied by the coulomb attraction.

Say you have a superconducting loop of copper. If there's an increasing magnetic field through it that induces an E field around the loop, how are the electrons moving when the field stops increasing? As I understand it the current is preserved. Is there some way to calculate the energy...

If your question is about how it's possible for two pieces of material to be brought close together without becoming one, the answer is this process is called cold welding.

A house isn't cooled by removing heat energy, such as if it were cooled by a heat sink of some sort. The air in a house is compressed, and this compression occurs at a cost of waste heat. Turning waste heat into electric energy isn't really a viable technology yet, is it?

If you use the alternator to hydrolysis water and then run the oxygen/hydrogen into the engine, is there any way for this to improve your gas mileage? I know that many such devices exist, but on the surface it appears that energy must be lost. Energy from the gasoline is hydrolyzing the water...

It's conceptual, and if you're pretty good at physics you could very well get an 800 with no problem. I used the sparknotes review book and I found it pretty helpful. Barron's seemed more difficult than the actual SAT II and I feel like I wasted time because of their book.

It makes as much intuitive sense as any theory. It's just wha' happens.

Do electrons ever touch?

How much more acceleration could a frozen human body withstand? I know cryogenic freezing AND relativistic travel are a little much to ask for but it's a thought. EDIT: I guess the term I'm looking for is human cryonics.

I would like to determine how long it would take a volume of water to cool from an initial temperature to a final temperature in a given ambient temperature. I don't know the volume, is this information important? If so, is there any way to come up with the time it would take as a function of...

You sure it's necessary? I get an answer that matches my calculator without incorporating any trig. EDIT: Oh.

This is probably a stupid question, but why did you change the limits of integration?