Formulas Definition and 545 Threads

I have to give a presentation and would really like some decent looking formulas to put in PowerPoint. Anybody know if it's possible to get LaTeX to output an image file? Thanks.

Whats the formula for this conjugate bases? how do I get them? a) HSO3tothe(-) b) NH3 c) HCL and how is the lewis acid and lewis base identified? thanks

For the difference of two squares you can factor using: a^2 - b^2 = (a + b)(a - b). And for the sum and difference of two cubes: a^3 + b^3 = (a+b)(a^2 - ab + b^2) a^3 - b^3 = (a-b)(a^2 + ab + b^2) How are these formulas found...? Can it be done with basic algebra (am I missing something...

Explanation of what is what in the formula and the unit in which they are in. The force between two charges. The centrifugal force between two rotating masses. The r * r in that equation is it the radie or the diameter? I mean the length. The mass of light. There are two versions...

What is the formula for copper (II) chlorate? a. CuClOsubscript 3 b. Cu(ClOsubscript 3) subscript 2 c. CuCl d. CuClsubscript 2 Please help if you don't mind.

Could someone please point me in the right direction for finding formulas dealing with torsion springs and also understanding more about how they work? Thanks Carla

What program do I have to use to incorperate Latex so I can print some formulas. Thanks.

I am in grade 12 doing level 3 Physics. For some reason i keep getting stuck on tension questions and static equilibriums Would anyone know the formulas for these (as my book really does not seem to be helping me) and where i can find some practice questions on the subject?

10 years ago i tried (as an artist) to solve the problem of how to translate the 3 dimensional cartesian coordinate onto the 2 dimensional surface with the precise foreshortening. I've only ever figured out 3 formulas for 3 different standpoints... then i gave up. now i recollected my notes, and...

for shallow waves (where \lambda \leq 1/2 depth) in a tub, can anyone tell me why... speed\ of\ wave = \sqrt{gravity * depth} i mean, is there a way to get this formula by deriving from others?

Okay, I am so confused about how to determine whether or not you have to use the parenthesis with the Roman numeral. It is confusing me because some of the compounds that I have to write the name for, are ternary compounds, and I'm not sure which order they go in. :confused:

Here are all the formulas I have learned in my pre-AP physics class so far, I just finished the 1st semester: They are in no particular order. F_c = \frac {mv^2}{r} a_c = \frac {v^2}{r} F_F = \mu * F_N C = 2 * \pi * r V_f = V_i + at V_f^2 = V_i^2 + 2ad d = V_i * t + \frac...

when people write formulas in the forums that have different charecters like greek letter how do you write those in?

hi there I am new here. Could some one tell me how to insert Latex formulas into the threads? About spin matrices: we get imanary no. in these matrices. Let's say we have S= n1.sx + n2.sy +n3.sz showing us the magnitude in each component (sx, sy, sz are the spin matrices/vectors). What...

Hello Is there any systematic way to write chemical formulas? Any help would be greatly appreciated

A 52-N sled is pulled across a cement sidewalk at a constant speed. A horizontal force of 36 N is exerted. What is the coefficient of sliding friction between the sidewalk and the metal runners of the sled? What formulas would I use in this problem?

Hello I am currently enrolled in General Chem. We are learning how to write chemical formulas. Can someone please explain to me how you write a chemical formula given the name of the compound? Like for example, how would you write the chemical forumla for calcium hydrogen carbonate? Any...

can u just check if these questions are correct. a) P=W/t for t answer t=w/p b)e=IR+Ir for I ANSWER, I=R/e+r/e c) x=a/y for y ANSWER-y=a/x d)F=ma for a answer F/m=a

:cry: well i need couple equations explained to me. such as the distances formula, and the velocity which I'm currentlyusing i really didn't understand what goes where m/s^2?, s?, m? and so on :cry:

Hi guys I'm looking for a website where I can review basic triangle rules such as the formulas for right triangles... I would look at a geometry book but I don't have one. Its been a long time and I need some reviewing to do. I also wanted to ask if anyone knew about the group of triangles...

Hello, the teacher gave us this assignment in which we had to separate some variables from equations. (example: E=mc^2 for m -> m=E/c^2). I had trouble with 4 of them (the ones in the attachment), I would appreciate some help, The procedure is really important since I want to learn how to solve...

I have a tool that is used in CNC metal cutting machines. This tool rotates and we have a machine that calculates the amount of immbalance. The known values are, rpm, amount of imbalance (gmm), diameter. I'm trying to find a formula that calculates the centrifugal force that is generated...

I need all formulas related to progressions...AP,GP,HP...all the formulas to find the sum of these progressions..Please i need it immediately

Let's say I have some simple formulas I want to type -maybe inline- and I don't want to go through the trouble of using latex. Let's say I just want to type mainly symbols that are on the keyboard + some greek letters and subscripts. How can I do this? I'll appreciate your suggestions.

Hi Can I Find A Complet Website ... Including All About ( PULLEY & BELT ) System ... I Mean - Formulas Of Finding : 1. Pulley Diameters . 2. Belt Length . 3. Center Distance Between 2 Pulleys . 4. Number Of Belts . 5. Other Designing Formulas And Calculations . Also Asking If I Can...

i have a few formula for my physics assignment but i want to know the best way to set it out and what other formula i can use. i already have the formula f=m*a and a=(v-u)/t. i just really need the marks

Hi all, I'm a newbie here and sorry for my bad English. I want to share with you guys 2 formulas I've created luckily on a boring day: 1) Let R be circumscribed circle of triangle ABC, let S be it's area. We have: S=2R^2*sinAsinBsinC 2)Let S be area of triangle ABC, a=BC, b=CA, c=AB. We...

Someone has to help me here. 1. \int \frac{dx}{\sqrt{1 - x^2}} = sin^-1 x + C So the derivative of sin^-1x is \frac{dx}{\sqrt{1 - x^2}}? The -1 are exponents. It isn't working.

I am doing some revision for physics and can't evaluate these questions, can anybody help or give a formula. Q1. A mass of 2.2 Kg is suspended from a spring of spring constant K = 25 Nm^-1 What is the initial extension? Q2. The mass (in Q1) is pulled down a further 5cm and released...

I am stuck. I've gone through all my notes to try and figure out how to do this problem, with no success. Any help would be appriciated. Thank you! An insurance salesperson earns an annual salary of $12,000 plus a commission equal to 3% of the premiums on all policies sold. If f(x) is a...

I was just wondering if anyone here , knows a good site (or a book) for general Formulas for Celestial Mechanics ? I have looked a little, But I only find one or two equations per site, and most of them are the same, So if you do know one that would be great

Hello, I was hoping someone here might be able to explain to me how to determine electron dot diagrams and structural formulas of diatomic/polyatomic elements and compounds. For example... Nitrogen Tri-iodide ( NI3 ) I know the basics of electron dot structures, but when the atoms start...

This is going to seem like a very elementary question. Let's look at a phosphate ion for example. 1) How can I tell by looking at the name that it's an oxyanion? I know it's a polyatomic ion with phosporous. 2) Since it actually IS an oxyanion of phosphorous and oxygen, how do I know...

Mathematical Proof? Can anyone tell me how to prove things mathematically? I'm not sure you can because I'm convinced that proving equations and formulas is something that you just see how to do if you are intelligent (if that is the case, then I must be stupid). I have trouble with this in my...

Analysis of a newly discovered gaseous silicon-fluorine compound shows that it contains 33.01 mass % silicon. At 27oC 2.60g of the compound exerts a pressure of 1.50 atm in a 0.250-L vessel. What is the molecular formula of the compound? I guess PV=nRT needs to be used. P,V,R, and T are given...

let A be the amount of a drug present t units of time after its administration. this amount could be in terms of drug concentration. the basic assumption i made was that the rate of change of A is the difference between the rate of absorption and the rate of elimination where the rate of...

I know some of them, such as : cos (2x) = (cos x)^2 - (sin x)^2 sin (2x) = 2(cos x)(sin x) tan (2x) = (2tan (x))/(1-(tan x)^2) sin (a+b) = sin a cos b + cos a sin b cos (a+b) = cos a cos b - sin a sin b I need the other formulas such as sin x/2 cos x/2 sin x^2 cos x^2...

A projectile is fired with an intial speed of 113 m/s at an angle of 60 degrees above the horizonal from the top of a cliff 49.0 m high a) time to reach the max height b) max height above the base c) total time in the air d) horizonal range of the projectile I used the formula t^2 =...

Hi, I just got my physics test back and am hoping I can be helped with two questions. My instructor gave it back at the end of class leaving no time for going over it. 1) Suppose the period of the moon in its orbit about the Earth were 41.1 days and the moon were 768,000 km from earth...

Hello, I was just curious as to how I can write formulas out in Microsoft Word. I am doing a lab report and want to make it look more professional by makeing the equations and calculations appear xactly like the ones in the book. If anyone has any advice it would be much appreaciated. Thanks.

hey can someone give me the formulas and resoning behind finding focal length, magnitude of radius curvature, and other optic stuff. Thank you.

In my class, we developed a list of formulas for circular orbits. One of them is E/m=1/2v2-GM/r=constant. To derive escape velocity we find for what v does E=0. But an orbit of this nature is certainly not circular! How can we apply the formula?

I despise taking notes in school, and never do, so I was wondering if anyone knew of an online list of all formulas relating to Calculus so I can just highlight the ones we're learning as we go along in school. (I'm taking AP Calculus BC) Thanks

For some reason, I cannot comprehend the concepts behind this. I read the example problems over and over; however, I still cannot understand the process when I go to study or do work on it. Just to refresh your minds, the double-angle formulas: sin2x = 2(sinx)(cosx) cos2x = cos^2x -...

Basic equation: X/L = Wavelength/D if Wavelength = XD/L how do I solve for X, D , And L? Please Help