Quantitative Definition and 75 Threads

I'm a little confused about what the ΔΔCt value means and how its calculated - could anyone verify? Also, I'm reading lecture notes that say "2^ΔΔCt assumes efficiency is 100%". I'm really baffled by this and would appreciate any guidance.

http://www.creditwritedowns.com/2010/09/the-federal-reserve-is-not-going-qeii-until-after-the-election.html I thought the above was termed open market operations as opposed to quantitative easing. I also thought quantitative easing was when the fed bought corporate assets instead of bank...

Hi, if an equation has parentheses attached, do you solve what is inside and then look at this sig figs to tell you the amount in the answer or not? For example, if I had (0.3991 - .02) / 100. would the answer have 1 significant figure (the .02). I also had a question with quantitative vs...

I posted before about possibly retaking the physics GRE, but now I have a question about the general GRE. First of all, I took the general GRE years ago, and scored well as I recall, but ETS drops scores after 5 years, so I have to retake the booger :mad: I mean, there are sooooo many other...

Hey just a question about the field, I understand most of the jobs are on wall street if I'm a Canadian citizen is there any chance employers in the states would hire me, or is the paperwork too much? does it make a difference if i do grad school in the states? keep in mind I'm still in...

I was just curious as to how someone could find a Quantitative answer out of the equations for general relativity. I've tried to mess around with stuff related to tensors and manifolds but yeah, I can only compute so much given my foundation. In an attempt to build and forge that foundation I...

I mean I'm guessing the answer would be no you can't but I figure it would be worth asking anyway looking to get into quantitative analysis

The basic number you hear all the time is that the Hubble expansion rate is 71 km/s per megaparsec So get the google calculator to tell you want actual percentage growth rate that turns out to be. Say over a billion year span of time. Past this blue thing verbatim into the google window...

I am a bit curios about what quants really do and am therefore planning to buy a book about quantitative analysis (basically to read for fun). Can someone recommed a good book which describes "real world" techniques? Preferably something suitable for someone with the "usual" background (in...

I've heard a lot about AdS/CFT lately as an approach to solve strongly coupled field theories such as QCD and condensed matter systems. However I am left wondering whether AdS/CFT has produced any quantitative result that is either i) not obtainable from previous methods, or ii) significantly...

If you were given a sample unknown solid acid that had a mass of 0.7 g and it was being dissolved in 50 mL of water and was being titrated with NaOH, is it possible to find the molar mass or the formula of the acid? Given information Mass of solid acid: 0.7 g Volume of acid solution: 50 mL...

Homework Statement Hi, So I have this lab in which we had to titrate HCl with NaOH (of an unknown molarity) So here's the lab.. I decided to scan it because I'm not a good explainer at all, heh. The molarity of the HCl is 0.15M by the way What I was wondering is how to...

Hello, I'm currently a 3rd semester Physics Student. I am not really sure in whit direction I want to go, I am tending towards theoretical physics rather than experimental, but I am also interested in ecomonics, so maybe becoming a "quants guy" might be a good idea, but compared with the...

I have an assignment that i have to do this weekend and i was wondering if anyone can help me with it, here's the only question that I don't understand; 1)calculate the mass of the water that will react completely with 4.0g of pure calcium metal according to the following equation: Ca(s) +...

Homework Statement Show that if we fit f(x) over [xn,xn+1], with a first-degree polynomial that interpolates f at xn and xn+1, then f(x)=f(xn)+[f(xn+1)-f(xn)](x-xn)/h. Putting that approximation into the relevant equation 1 which is given at relevant equations part derive the approximation...

HELP!A problem on quantitative aspects of electrolysis Homework Statement A quantity of electric charge brings about the deposition of 3.34 g Cu at a cathode during the electrolysis of a solution containing Cu2+(aq). What volume of H2(g) measured at 27.8oC and 767 mmHg, would be produced by...

A typical protein contains 16.2% nitrogen (14.00674 mg/mmol). A 0.500 mL aliquote of protein solution was digested, and the liberated NH3 was distilled into 10.00mL of 0.02140 M HCL. The unreacted HCl required 3.26mL of 0.0198 M NaOH for complete titration. Find the concentration of protein (mg...

Hey, Can anyone recommend me a GRE prep book that helped them prepare for the quantitative section of the GRE? It probably doesn't come as much of a surprise because of the forum we are on, but I am shooting for an 800 in quant, so I obviously don't need an extremely basic review book. I...

A rope with a total mass of 25.0 kg is tied to a tree on one side of a 125 meter wide ravine, and you're pulling on the other end of the rope with a force of 415 N. If you pluck the rope, how long will it take the pulse to travel across the ravine to the tree? Please Help me out

so I am still very much confused about the quantitative analysis of Francis turbine, so i wrote a small program. I have attached a copy of the results. Everything is fine, the results do match the normal circumstances. But upto speed 110, degree of reaction(R in the table) is negative, and...

Unlike in the physical sciences, the role of mathematics in biology is still somewhat controversial. Many leading biologists still know very little about mathematics. This seems to me to be more the influence of history than anything compelled by the field itself. Many areas of biology...

What is the difference between accuracy of a measurement and its level of accuracy? Is the level of accuracy quantitative or a qualitative measure?

Is there a quantitative test for the amount of sulfur dioxide in orange juice. Nothing too complicated, I am only in year 11. Can it be done using titration?

Is it possible to make a quantitative test for protien using biurets test - if so how would you do it? Does it involve titration?

I'm trying to track down a quantitative proof that the most uniform magnetic field between two Helmholtz coils occurs for a separation equal to their radii. So far I've just been playing around with the Biot-Savart law and proving that B is identical at several trial points along the axis...