Convert Definition and 594 Threads

Ok, so I know this shouldn't be so hard. I am trying to convert a Coefficient of thermal expansion from 7.78E-6k^-1 to C^-1. But, I'm not sure what the conversion rate would be in this case. This is an odd conversion because you add to switch between C and K. So I'm not sure how to convert these...

Hello, I am attempting to take data from a PDV laser reflected off a vibrating surface and then convert that data into a sound file. The data from the laser is stored in an excel spread sheet but I do not know how to convert those data points into any form of sound file. I'm thinking a .wav...

Use a loop to read (charAt()) each digit (0/1 char) in the input string, scanning from right to left; Use the loop to build the required powers of 2; Use a conditional statement to deal with 0 and 1 separately; Debug using simple input, e.g. 1, 10, 101, and print intermediate values in...

Our backyard backs up to a major freeway u need hear protection to stand at the back gate for to long we r less then 20 feet from the edge of the road id like to turn this extreme noise into usable energy... is there anyway to convert it into electricity or use some kind of aperatise to convert...

Hi all ! I am a summer trainee and am currently making (modifying: I am changing the way the program takes input) a program in Fortran, and my math is a little shaky. What I have is an input file with 3 parameters in it for the equation (which is the equation for calculating torsional...

Any suggestion on a free program to convert Word to PDF. I was playing around and I got malware that I am still trying to clean up. Thanks

Hi!, nice place you got yourselves here, so I'm a mechanical engineer working as a maintenance supervisor working for a dairy and food corporation specializing in UHT milk and milk derivatives (varietieshttps://www.physicsforums.com/Nexus/editor/menupop.png of yogurt, cheese, butter, ice cream...

Hi to all physicists How can convert muscular (mechanical) energy to electricity without using a generator? In fact I am looking for a way to convert muscular energy to electricity energy without use the generator.

Hi. I'm new to this forum. I would like to ask is there any software that can convert graph to equation. My graph is in xy graph. I need to create a new accurate equation to make data more precisely. Appreciate to anyone who can help.

I'm writting my paper and need to extract some paragraph out of pdf materials, but the pdf can not be copied, so I need to convert them to word so that I can edit the text. They said pdf can be saved as word document using adobe so I don’t have to use another tool, but I have no idea how to...

I do not work with this type of conversion so I am not familiar on how to understand so here is my problem I have a electrical supply line putting out DC current at .6 amps by 17 volts which equals 10.2 watts here is my question if I take a 125 volt AC bulb rated 10 watts will this be enough...

Hi all ! I got stuck in establising an method to Convert a Quadrangle mesh to a Triangle mesh (CFD). I have a mesh file (.dat) which have information: Number of Element - Node 1 - Node 2 - Node 3 - Node 4 1 1 2...

How do I convert a word or name to math symbols? E.g. the letter N can be converted to ℕ (all natural numbers), the letter Z can be converted to the letter ℤ (set of integers), and the letter R converted to ℝ (all real numbers). Basically, I want to convert someone's name into math...

So i found this post about voltage to current conversion. http://www.allaboutcircuits.com/vol_3/chpt_8/7.htmlhttp://www.allaboutcircuits.com/vol_3/chpt_8/7.html It talks about how to convert 1-5V to 4-20mA which is exactly what I am trying to do. I have attached the circuit which I am...

Homework Statement I need to substitute eq1 to eq2, and obtain a linear relationship of S = ()d + () or S = ()lnd + (). I have tried a lot of method but non of them a successful one. I hope anyone can help to obtain the equation in linear form. Deined parameters: C = capacitance, d =...

As the title said :) I'm trying to find the velocity of a particle with a momentum of between 23 and 150 GeV/c. I found that 1 GeV/c = 5.36 x 10^-19 kg-m/s, and tried to divide by the mass of the particle - this just game me values between 7m/s and some crazy numbers. What am I doing wrong :(

Homework Statement Find the energy required to change ' X " mass of ice at -18 degrees celcius to steam at 100 degrees celcius. Latent heat of fusion : 336 000 Lt heat of evaporaton : 2300000 SHC water : 4200 SHC ice : 2108 Homework Equations Q=mcΔθ Q=m x latent heat...

Hi. I perform huge computations worth 70 lines. After those 70 lines, i have these equations in my internal memory. %(stored internally) Wnet=(99*((57443*((4018*y*(66875/(57036*x))^(2528214091580831/18014398509481984))/5 - (57443*y)/50 + (2894969*x^(200/623))/50))/(50*((57443*y)/50 -...

Hi, I need a way to convert kinetic energy into thermal energy as well as the specific heat of the entire Earth's atmosphere. The idea is to see if the heat generated by many meteoroid fragments could possibly account for any climate change. Thanks.

http://img855.imageshack.us/img855/8894/figgg.jpg Is that how it works basically?

So a professor gives me 3 vectors U1, U2, U3 then asks me to calculate 1. Calculate the orthogonal basis vector v1,v2,v3 2. Calculate the Orthonormal basis vectors e1,e2,e3 How do i do question 2? how do i get the orthonormal basis from the orthogonal basis?

May i know how to convert voltage to acceleration from accelerometer ? output voltage = 2.5 v and sensitivity of accelerometer is 9.9mv/g

Homework Statement The point is (0, -8, 0) r≥0 0≤θ≤2∏ 0≤\varphi≤∏ Homework Equations The Attempt at a Solution So here is what I've done so far: I know that r=8 because x and z are 0 I know that θ=∏/4 or 3∏/4, but which one? both of these satisfy the following equation...

Homework Statement Hello everybody, Can you help me solve this: Coal-burning power plants convert the sulfur in the coal to sulfur dioxide (SO2), a regulated air pollutant. The maximum allowable SO2 emission for new power plants (i.e., the maximum allowed ratio of the mass of SO2 emitted...

Homework Statement Given the tensor F_{\mu \nu }= \left[ \begin{array}{cccc} 0 & -E_{x} & -E_{y} & -E_{z} \\ E_{x} & 0 & B_{z} &-B_{y} \\E_{y} & -B_{z} & 0 & B_{x} \\E_{z} & B_{y} & -B_{x} & 0 \end{array} \right] F^{\mu \nu }F_{\mu \nu }=2(B^2-\frac{E^2}{c^2}) and metric tensor n_{\mu \nu...

(This may sound like home work but it's not) What does it mean to display a picture in its frequency domain? A solid square box becomes a star shape? SHORT VERSION As title thanks. Firstly, what does it mean to show a picture in its frequency domain? and secondly, how do you do it...

I want to know how to post equation in website. I want to start site myself but the equation which i have typed in Word 2007 are not professional to update in site so which software i can use so that i can update equation as well as graph in website.

I need some help coming up with a formula.. This involves a Vehicles Engine I know how fast the rate of change is (example being 3000 rpm over 3 seconds-an increase from 3000rpm to 6000 rpm in that 3 second period) I know how much weight this RPM has moved (3700 lbs) and I know the Gear...

Lets Suppose we have 251 Items in stock and we want to convert it into Boxes and single items. How can we do that. I want result like that E.g 50 boxes 1 item Total Items # 251 items items per box = 5 251/5 = 50.2 But result must be as 50 boxes and 1 item Please share ideas..

Homework Statement In order to advance on a problem I'm working, I need to covert this ellipsoid from cartesian to spherical coordinates. \frac{x^2}{a^2} +\frac{y^2}{b^2} +\frac{z^2}{c^2} = 1 Homework Equations x^2 +y^2+z^2= \rho ^2 x=\rho sin \phi cos \theta y= \rho sin \phi sin...

I need to know because i need a chip that is a conductor and absorbs heat then converts it to electricity.

Homework Statement A large school district has 300 school buses. If each school bus is used 3 hours each day, the average speed of the school buses is 15 mi/h, and the fuel economy of the buses is 10 mi/gal. How much does it cost to run these buses in 22 school days if gasoline costs $1.20 a...

example 1111 = 15 is there a circuit to separate output binaries 0001(1) and 0101(5) in input 1111(15)?

Homework Statement Convert the polar equation: r = \frac{2}{ 2\,\sin \left( \theta \right) -3\,\cos \left( \theta \right)} to rectangular form Homework Equations x^2 + y^2 = r^2 x = r * cos(theta) y = r * sin(theta)The Attempt at a Solution I tried to to use the x = r cos(theta)...

Homework Statement Evaluate the double integral by converting to polar coordinates. ∫∫ arctan y/x dA; R is the sector in the first quadrant between the circles 1/4= x^2+y^2 and x^2+y^2=1 and the lines y=x/√3 and y=x. Homework Equations arctan y/x= θ The Attempt at a Solution...

I'm still looking into this prior to my older thread and someone has told me of a method that I have quoted below; " All measurements are assuming that the pixel width/height is one) Let fov = the field of view, you can decide how much field of view your user will have from the target...

I just bout some wireless controlled wireless outlets. Theses are what I bought: http://www.menards.com/main/electrical/safety-security/timers/indoor-wireless-remote-outlets-3-pack/p-1477247.htm I want change how they draw power and the functionality. I am new to circuits and have a novice...

I've only been able to do it the other way around.

Hi there I have an Photo Voltaic system size 141 kW DC. It gives me an about 13 000 kW/hr a month.(I'm in Hawaii) We planning to install a new system, size ≈800 kW DC. How can i calculate how much of kW/hr AC i will get out of new system? Is there is any special formula to covert DC to AC...

I'm attempting to convert the following parametric equation into into one f(x, y, z), and am running into difficulty. (Is it even possible?) Can I get some help? x=(2+cos(3t))*cos(2t) y=(2+cos(3t))*sin(2t) z=sin(3t)

Homework Statement Alright, here's the question, A stream function for a plane, irrotational, polar-coordinate flow is ψ=9r^2sin^θ. Find out the velocity potential in Cartesian Co-ordinate! Homework Equations The Attempt at a Solution Well, I can easily find out the velocity...

Homework Statement well the problem is electron moving in an infinite poentail box of dimensions... calc all posible energy level in (eV) Homework Equations E=h2/8M(nx2/a2+... The Attempt at a Solution ok so no idea how they get h2/8M to = 37.6 h is planks constant the units are...

Homework Statement Hi I got a problem with some simple modeling. The original code assumes a spherical cloud with a central source, and it assumes that the source sits at the centre of the sphere. I want to change this model and instead of using photons coming from the central...

Homework Statement The system is given by: G(s) = 1/((s+0.1)(s+3)) I need to convert it to G(z), it's discrete form. The sample time T is 0.1 seconds. Homework Equations To convert it they give G(z) = (1-z^(-1))*Z-transform[G(s)/s] The Attempt at a Solution Obviously I...

I have been trying to find out if this is possible and can't find anything, probably I'm not using the right maths terminology to get it. What I want to be able to do is to take a set of 3d co ordinates and then use some sort of algorithm, formula or similar to convert these into a 2d...

I realize this is most likely an extremely basic question but I can't seem to find the answer... I am wondering if it's possible to convert MS Word documents (with some MathType equations) into LaTeX (and then into pdf files)? I have never used LaTex before and would appreciate some basic...

Suppose I have acceleration defined as a function of position, "a(x)". How to convert it into a function of time "a(t)"? Please give an example for the case a(x)= x/s²

Homework Statement convert signed hex to decimal, 8230 Homework Equations The Attempt at a Solution i first make 2's complement of 8230 bcz it is negative then i convert it to decimal ffff-8230=7dcf+1=7dd6 7dd6=32214 in decimal my answer is -32214 but i checked...

Is it right to multiply everything on both sides first, by the (2-sin^2 θ) ? Why would you want to do that? In terms of how it should look, and what variable to solve for, what exactly is the goal here and why?

It does not explain it in any of the books ? So no clue even on how to start other than, R = X squared + Y squared