Recent content by quietbang

Sorry, I've attached it this time. I did initially, but the force answer I got was way off. Separating the masses into two diagrams, I was left with these equations: There aren't any forces in the x-direction, so their force equations are 0=0. For the y direction, mass A \vec{F}_{y}=...

Hi, I am currently enrolled in a first year Physics for Scientists and Engineers course at a university, but I am a biochemistry student without a physics background. I am relatively certain that the problem is a forces problem, but there is a chance that it could be energy as we have just begun...

I don't intend to actually spray living beings (though my best friend did volunteer as a guinea pig on the grounds that he's been electrocuted twice and is probably already a mutant of some kind) but rather plant materials, etc. My concern with liquid nitrogen is the possibility of dispersion...

So, I'm building a freeze ray, in a sense, and I was wondering... What would the easiest/cheapest way to produce an endothermic reaction without using ammonium nitrate? The way I have the schematics so far is that I will have two substances that will blend just before exiting the ray, and...