Measure Definition and 1000 Threads

how can i measure resolution of SEM? please help! :cry:

So, I've done extensive IQ tests and other tests regarding logical and spatial puzzles, picture puzzles, language tests, and other tests I can't remember. It was done some months ago by a psychologist, took about 7 hours to do, but I'm not really happy with the result. While the results...

Help! I need to find the angle measure of <ABC. But i can't use arcsine, arccosine, or arctangent. Is there any other way to find theta without those or does anyone know the equation for one of the inverse functions i.e. arcsine would be favorable?

I was wondering if anyone knows how to measure concentration. I'm going to have a lab prac. where we design an experiment to investigate the effect of concentration in the rate of reaction of calcium carbonate and hydrochloric acid. I already know that increasing the concentration will...

Here is the question: A factory uses a beam of light to allow workers to visually check the temperature of a liquid. A semi-circular crown glass (refractive index (n) =1.75) block is placed in a liquid X whose refractive index n changes with temperature T (in °C) according to the formula: n =...

Hi I am having difficulties with another problem involving radian measure. The problem is as follows: A wheel of radius 60cm is rotated until a point on the wheel was initially at the lowest point is 80 cm higher than the initial point. Find a) the angle in radians through which the wheel is...

A direct quote from "Science News", April 22, 2006! :wink: :smile: :smile: :smile: :smile: :smile: :smile: :smile: :smile: As I first said, some forty years ago, "someday clocks will be so accurate that the academic community will recognize the fact that they are confusing two very...

How do they measure the CMB temperature? Aren't they just some radiation?

Hello guyz, Im having a problem in solving a Math Problem I can not found a formula does anybody knows the conversion for the following 1. meter squate to feet square m2 to ft2 2. centimeter square to feet square cm2 to in2 3. linear meter to linear ft Regards and Thanks, Mayt

I'm studying homogeneous catalysis and reaction kinetics, and I want to conduct an experiment that measure the rate of reaction by either: 1. a pH change or 2. consumption or generation of a compound bearing optical properties. Which one is more feasible? Hopefully you'll suggest a nice...

Hi Everyone, This is my first post here, so have mercy on me :redface: Project: Using a Non-Contact Probe (Sensor) To detect an unknown 1"x1" cube's (it can be steel, alumnium and plastic) Electrical Conductivity (EC) and hence decide its material. Measurement of EC must be in levels of HI...

How would one measure magnetic vector potential? I know there is a formula, but is there an experiment that proves it?

Hey, Can anyone explain to me how the "old fashioned" dew point hygrometer works? http://img85.imageshack.us/img85/6889/dscf03724mz14va.th.jpg And can anyone identify this instrument and explain to me how it functions? All I know that one of it's components is freon gas...

How do chemists measure electronegativity? Thanks, -Scott

This is from "Exploring Black Holes" by Taylor and Wheeler. It's a very good book but I struggle not with the math, but the explanations (sometimes) On page B-13 is a frame called "Metric for the Rain Frame", which is a transformation of the Schwarzschild Metric from "bookkeeper coordinates"...

Integrals are typically associated with measure spaces. For example, the Lebesgue measure for the Lebesgue integral and the Jordan measure for the Rieman integral. But it seems like it should be possible to define an analogue of integration on something weaker than a measure space. So, what is...

i read that you measure visocity of water by poises (sounds like poison :rolleyes: ), how does it equate with the quantities? i.e, like [N]=[kg*m^2/sec]

Q: Construct an open subset E of [0,1] having Lebesgue measure m(E)=\epsilon such that 0<\epsilon<1 which is dense [0,1]. A: The fat Cantor set. I need help proving it is dense in [0,1]. The usual Ternary expansion argument stuff won't work as the sets used are of length \frac{\epsilon}{3^k}...

Hi, I am making something to measure how much time two objects are in contact when one of them is accelerated towards the other. To do this, I'm going to put a wire on one object and another on the other, and make the objects complete the circuit when they touch obviously. What happens...

my a/c-heater unit thing in my dorm is making this very irritating high pitched noise. maintenance can't hear it. so i need to prove that it's there (this is important because i live in a 12 month dorm and will be here this winter). are there any programs or devices that will measure frequency...

1 of 2: What would an Ideal Volt Meter read if an Ideal Capacitor had a charge difference of... 6.25 quintillion electrons (6.25 X 10 to the 18th) between its two plates? In other words... if there were 6.25 x 10^18th extra electrons on one plate... and you connected an Ideal Volt Meter...

On a day when you are listening to music at a sound-level of 20 dB above the threshold of audibility, an average person would say that it was none of these very loud slightly loud of normal listening level very soft Well, for every 10dB increase we percieve sound as...

how can you measure the speed of the plane from the ground. Can anyone help and please explain as much as you can and if you can provide the equation/example that would be wonderful.?

One of my HW questions asks me to prove that the usual "middle thirds" Cantor set has Lebesgue measure 0. I know two ways, but they lack style... They are (that you may post): #1) The recursive definition of the Cantor set (call it C) removes successively \frac{1}{3} of the unit interval and...

HI WHAT UNITS DO U MEASURE pOTENIAL ENERGY AND KINETIC Energy in please

can you measure an objects spin or position, or polarization, without actually measuring it? like can you find out if they have any of those 3, without actually measuring it?

Measure the speed of electron wave By theory of electron wave(E=hv=mcc,P=h/λ=mV),we can get the speed of electron wave v=cc/V>c but physicist consider it is not possible.I think it should proved by experiment.The follow experiment may gave us some new information.,Please look at picture...

I am studying the performance statistic of some coding techniques on messages of 380 bits long. I studied it by generating bit sequences randomly and test the performance on each sample. But the sample space is so large (2^380) and practically I can only randomly test about 10^5-10^6 samples...

Say I have a spectrophotometer that has a grating monochromator. If I want to measure emission instead of absorption from a lamp, could I just remove the exit slit? By removing the exit slit, doesn't all of the light just hit the sample?

Lets use Jupiter which has a diameter of 142,984 km at a distance from Earth of 5 AU or 747,989,353 km. The answer should be around 40.0 arcseconds, I’m just having trouble understanding how to do the calculation. If someone could help it would be much appreciated.

my doubt is what is meant by rate of change of acceleration? how can i measure it in dyanmic condition? if it realated to machene tools, the movement of the slides acceleration has to be changed continuosly for different application . how we can measure it

An probability measure on same space \Omega is a function of subsets of \Omega satisfying three axioms: (i) For every set A \subset \Omega, the value of the function is a non-negative number: P(A) \geqslant 0. (ii) For any two disjoint sets A and B, the value of the function for their...

In physics entropy is typically referred to as a measure of disorder in a physical system however I have seen it referred to as a measure of statistical uncertainty for a set of data. I also recall the function defined the statistical uncertainty took the form of an integral and is used in...

I can remember reading somewhere that the ping command can be used to measure the circumference of the Earth or something similar. Does anyone know how to do this, or have a link to the article? --thanks

How can I get the parasitic capacitance of a inductor? I have a scope, current probe, function generator. Thank you.

I was wondering, when using a magnet to track the deviation of Earth's magnetic field during a geomagnetic storm, is there in any way possible to get a numerical value of the strenght of the actual magnetic deviation? I was thinking of recording the angle of deviation, then using another...

While I and my friends were talking about some topics in optics, we come to realize that we do not know how to measure the the intensity of light. Does anybody have a good idea? I don't want to hear 'Oh, You use blah blah to measure the Intensity of light' but rather what's being directly...

Hi people, does anybody know what the simplest device that can be used to measure monochromatic light wavelength exactly? Thanks.

been stuck on this all day Design a test to determine whether the charges on an electron and a proton are exactly equal. any help would be good

Temperature is the measure of average kinetic energy of an object. If I put a thermometer in a pencil case, and I throw the pencil case away, the reading does not change. However, the kinetic energy of any particles of the pencil case did vary. Why?

A particle in a stationary state with energy E (all kinetic) is shown to have some probability of tunnelling through a potential barrier. (say an electron in a potential well, where U = 0 in the well, and U_1 out of the well) My question is, if the particle ends up in the classically...

If the temperature of something is a measure of the average kinetic energy of its particles then why aren't white water rapids hot?

Ok, so we have a parameter X say. Now, we have a mean x-bar, that is the mean, X being random. Now, by basic statistics, the variation , that is V(X) = E (X)^2 - (x-bar)^2 is the disorder. Is it so? The interpretation of the disorder by me is correct or not? I have nice property of...

Hello! I was reading Asimov on Physics the other day, and found that a watt is a measure of gm cm^2/s^3. That got me thinking, if voltage times current equals watts, what would voltage and current be a measure of? I have been trying to figure it out for a while, and came up with: current=...

Hey, I'm trying to measure the lift/drag of a wing in a low-speed wind tunnel, the only ways i might know are using a load cell or force probs, but have no idea about how to set it all up and my school doesn't have the material. So please, can u give me any way using simple things to measure...

hi , i am new here so at first i want to say hello to all of You. as title says i have two questions about qrover's algorithm, first one is more general i guess: 1. in the most of articles i have read about this algorithm the measure wasn't well explained,problem is that authors wrote "now we...

Why is it difficult to measure the perihelion advance of the planet Venus? Please help me answer this question in details...Thank you~ :smile:

When I was a high schooler, there were two advantages that have apparently been removed from todays students: 1) The old SAT was designed to measure aptitude, not achievement or learned skills. 2) There was a real "merit scholarship" program, generous enough to cover more than the...

What is the name of the device used to measure ohms? :confused:

Using the formula relating the tangent of angle p enclosed between two given straight line L1 and L2 and respective slope m1 and m2,Find the measure in degrees of angles A and C of the triangle with vertices A(-3,4),B(5,6) and C(2,1) My work is Tan A = Ma = yb-ya/xb-xa=6-4/5+3=2/8=1/4...