Recent content by aclark609

K'sys=1/2MtotalVcm2+1/2\muVreli2 I understand this equation represents the total kinetic energy in a reference frame. What I'm not getting out of this is the overall concept. I understand that the first part of the equation is supposed to represent the total kinetic energy required to...

I'm going to do a presentation for one of my classes in college. I'm interviewing a chemical engineer who received a Bachelors Degree in Environmental Science first, then went on to get his Bachelors and Masters in chemical engineering. How should I list this in a Power Point presentation?

Then again, If deltaV/deltaT = a, then the answer would be just the opposite.

Thanks guys. One more thing I'm kind of confused about. If an object is slowing down in the negative x direction, then I would assume the acceleration would be positive, correct? I assume this because an object slowing down in the positive direction would have a negative acceleration.

I understand how position vs. time diagrams can give velocity. If the line is flat then the velocity is zero (the particle is still), and all the other basic things I need to know, but what if the line was vertical? The slope would be undefined; therefore, velocity would be undefined. In...

That's what I thought. I'll approach her with this next class period. I don't see how someone with a doctorate could miss something so obvious. There must be more to it.

Are there not dipole-dipole interactions between CHBr3, CH3Br, CH3Cl, and CHCl3? Assume they are all separate pure substances. My professor today said that the only intermolecular forces present were dispersion forces. Are the dipole attractions negligible due to fact they are too weak?

I'll check this following week with my advisers. Thank you for the input.

I received an email from this particular honor's society requesting that I join. Has anyone on here heard anything about it? I have a 4.0 gpa with 57 credit hours, and they say that only a select few members are inducted each academic year, but . . . you know how that goes.

Thank You! I did not expect to get acclaimed for this lol.

Nevermind. I just found out it's 1 atm above normal atmospheric pressure. Place palm to face emoticon here. Sorry.

Okay so if 1 atm is the pressure in our natural surroundings (I know it depends on altitude, but humor me, ummkay?), and 1 atm = 15 psi, then why does a pressure cooker get water to boil at 121 degrees Celsius. I mean the pressures are the same. How does a pressure cooker allow it to get hotter?

Glorious. Thanks.

This is not a homework question. It's the beginning of August for pete's sake. I read that like dissolves like, but what about the density of the molecules that are being dissolved? For instance in a solution (gaseous or liquid) of CO2 and CH4, they are both nonpolar, so they mix...

Thank you for the response. I found it helpful, and yes I'll definitely read up on the subject.