Recent content by diewlasing

Well actually, in all of my physics classes I get good grades, I finished those last year, I've just been doing electives and core requirements since. And on the GREs, it's not that I didn't know the material, its that was nauseous and the proctors didn't allow water or anything, even tissues...

Hello all. Problem: This semester I fell ill with a bad bacterial infection and was ill for a while (with temporary partial hearing loss in one ear). It caused my grades and GRE scores to suffer IMMENSELY. I can't retake the physics GRE but I am retaking the general one. And also my...

right, but will they form compounds with the phosphate or others in solution or will they remain free ions?

If you have a phosphate buffered saline, you can suspend erythrocytes in it for a few minutes. But, for the sake of argument, can one as ionic compounds to the the PBS, like CsF, will it combine to form new compounds and cross the cell membrane. Or will it dissociate and stay in solution as...

Ah yes, thank you

A solution with the same concentration of salt as cells.

Is there a range of salt in which red blood cells can survive in an isotonic solution. My current understanding is that they can survive in a 0.9% w/v NaCl isotonic solution. But can that number be varied to a range of different amounts of NaCl in which they can survive for any amount of time...

How does one take the time derivative of ϒmv ? I tried treating gamma and mv as separate functions but it just gets messy and ultimately wrong.

I had a brief conversation with a professor of mine and he presented, in short an argument against the existence of black holes. I'm sure you've heard it or a variation of it. It goes something like this: An advisor and his student are near a black hole. They are both wearing a watch, the...

He is Walter L. Wagner. I know it's pretty much a non-issue because CERN is going to ignore his lawsuit anyway, but he still disseminates incorrect information. Has anyone bothered to look at his credentials? I cam across an affidavit he swore in a Hawaii court were he claims to be a...

right my fault, but the integral works out to be: (x^2)/4 - (xsin(2ax))/4a - cos(2ax)/(8a^2) My question is how does that simplify to a/2?

where the wave equation is Psi_n = sqrt(2/a)sin(n*pi*x/a). When you do the integral of -inf to +inf of x|Psi|^2, the CRC handbook works it out to be: (x^2)/4 - (xsin(2ax))/4a - cos(2ax)/(8a^2). And I know the solution works out to be a/2 somehow but I don't know how to get it. I worked...

I know how to do that, the density is 1000 kg/m^3 and you set it equal to m/v where v is the volume given. But I still don't see how that helps me much.

how do I show that: |y + x|^2 = |y|^2 + |x|^2 + 2|yx|cos(a1-a2) where y = |y|exp(ia1) and where x = |x|exp(ia2) and how do I show that |exp(z)| = exp(Re(z)) where Re is the real part of an imaginary number z. thanks is advance

keep in mind this problem is on page 8 of my text (yes I'm already confused by the problem) and the ideal gas law was just introduced. problem: Estimate the average temperature of the air inside a hot air balloon. Assume that the total mass of the unfilled balloon and payload is 500kg. What...