Rules Definition and 502 Threads

I just want to know if a negative exponent is as just the same as saying one over another number. For example: 5^1/3 = 5^-3 Another thought would base numbers only affect base numbers and exponents only affect exponents?

The ammeter shown in Figure P28.18 reads 2.60 A. Find I1, I2, and E Really confused on how to do these problems...any help would be appreciated...

I know that in order to be helped we must present our thinking, but I cannot do that since my knowledge in this topic is small and I don't have time to make a search because I have to study for my math's test that is tomorrow. I hope you understand. Imagine that you are going to visit a...

My physics class rules. Reasons: 1: It's not a "school-required class", Which means that the speed of learning is adequate for not ripping my hair out in disgust. However, it IS a collegebound-required course, so I still have quite a few potential dropouts. Lucky for me, 5 kids've...

hi, I'm currently doing a mechanics module at Uni. The thing is, I'm not very sure about rules regarding the vector cross product and dot product. For example, it says in my notes for angular momentum: "Introducing polar coordinates \mathbf{r} = r(cos \Phi \mathbf{i} + sin \Phi...

Hey, We recently started learning about magnetic fields and forces in physics and we took these weird right hand rules... After much attempt I cannot, for the life of me, figure them out. Is there any way I can find the direction of the field or a force without using my right hand? Like on...

Hi, I am confused about the electric dipole selection rules. Delta l = +/- 1 Delta m_l = 0, +/- 1 but are there rules for Delta j and Delta m_s and Delta n? Is there a (semi-rigorous) way to conceptually understand selection rules? Thanks.

Hi, I have a question on selection rules for electric dipole transitions. It has to do with a GRE Physics exam question that's confusing a number of students at grephysics.net ... if any of the quantum guru's here would like to help, please check it out at...

What are the Feynman rules for phi to the sixth theory? Can anyone please help? Peskin and Schroeder does phi ^ 4th... I can't help thinking the derivation is the same for phi to the sixth, and that the rules are the same. Could that be correct? Thanks so much for your time, Job...

This was sent to me by my niece. Only blame me if you feel it is absoulutely necessary. :smile: The Guys' Rules: At last a guy has taken the time to write this all down. Finally, the guys' side of the story. (I must admit, it's pretty good.) We always hear"the rules"from...

Is it possible to manipulate and substitute modulos like so a^5 = a (mod 5) a^3 = a (mod 3) a^15 = a (mod 15) By substituting the first into the second?

Yep every one is, i have broken all the rules. Lust, i have done loads of lusting. strike 1 Glutton, well may be a bit, strike 1 Avarice, Hmmm, strike 1 Sloth, i suppose so ...

does anyone know what they include? here is a prefrence. thanks

hiya I understand vectors perfectly, but still something is bothering me when it comes to forces being represented as vectors We'd compute the x component of force F with F*cos(alpha), alpha being angle force has with x axis. Promblem I have with this is why does force follow the same...

Hi I was wondering: How much does it cost to do (legal) genetic experiments involving animals? What's the minimum amount of time/the average of time experiments like that take? Would you have to do something like that at a university with animal facilities, or could you do it other...

This journal will be the journal that follows through my progress in school. I have some big goals this year, and I believe this would be a great way to stay on track. Anyways, I have another journal going too. Check it out if you like at...

How much of it can you eat before you get surrounded by a halo of garlic odour, how much time does it take before the odour starts going through your skin, will a shower clean you enough or is it something that just needs to get out of your system? No, no one complained yet o:), but at times...

Hello. I am in confusion because I cannot understand which formula will be used in this and that derivation,because there are many formulas of physics.Then how we come to know that this specific formula must be used in this derivation It is a great confusion for me. Please solve my problem...

Hi, I've tottally confused myself over the mutiplying rules. Can someone please tell me all the rules +x+ = -X+ = +X- = -X- = Because I am stupid and keep messing up my polynomials with them. look forward to posting many easy questions for you guys, Dam some of this stuff is...

I came up with three equations, to find three different currents in a DC circuit, using Kirchhoff's loop rule, but when I solved them as a matrix in my calculator the bottom row becomes all zero's and the first two rows do not appear to be in "rref" form. I solved the system of equations by...

This ruling makes me very nervous. http://news.yahoo.com/s/ap/20050623/ap_on_go_su_co/scotus_seizing_property_10;_ylt=AjD7WnZAJ_f_VjRE9mHYjPduCM0A;_ylu=X3oDMTBiMW04NW9mBHNlYwMlJVRPUCUl I must admit nothing but pure contempt for developers, mostly because of the power they already have in...

What are the rules for the usage of which and that? I am reading a book that (<- :wink: ) I think is littered with this grammatical error. How should the words be used correctly and are the following sentences wrong? Any variation which is not inherited is unimportant for us. I cannot...

Can you tell me what general rules does antigen have in human immune system ? I assume it is statically floating around in our blood till it is eaten by Tcells. I also just learned it has a specific identity such that Tcells can recognize it, but what is that specific identity ? Second...

Hello Everyone, I am having trouble with the left and right hand rules in Physics. If anyone could explain them to me with as much detail as possible I would really appreciate it. I can tell you what I know and some of what I would like to know if it helps: The left hand is used for...

just a simple question: are perpendicular lines diff from bisector lines? if so, how are their "rules" different?

The rules of the immigration game are very simple... http://www.transcience.com.au/el/elgameo.html :smile: :smile: (This is a repost. The post disappeared and even Evo can't find anything about what happened to it... gone without a trace. So you people who posted in it...

Using Kirchhoff's rules, calculate the current in R1 with the directions indicated in the figure below. Assume that R1 = 1.00 kΩ, R2 = 3.00 kΩ, R3 = 5.00 kΩ, E1 = 60.0 V, E2 = 50.0 V and E3 = 65.0 V (Diargram in attachment). This problem has kind of stumped me. I tried setting up three...

I have an egg drop design contest. Here are the rules: We have to drop the egg from classroom height (about 6 feet) and from gym height (about 13-15 feet). The capsule cannot weigh more than 550 grams and cannot exceed 7"x7"x7". The egg shell and the yolk have to survive. You are...

I'm only interested in the inference rules. I've read that people use different sets of rules, and I'm trying to find all of those different sets. Here's the ones I have so far (read "/" as a line break): 1. Modus Ponens (M.P.) 2. Modus Tollens (M.T.) 3. Hypothetical Syllogism (H.S.): p ->...

Do you guys know any websites with the COMPLETE list of rules for net ionic equations?

:cry: We found that "tidy function" exists, when wave function intepreted as fi=X(1)X(2)alfa(1)beta(2) for two electrons is antisymetric and fill Pauli rule. But we were unable to find an simple explanation for it. And believe us, none book was able to "show us the door". Thanks for any...

I would like to ask two questions about Hund's rules and L-S coupling: 1. Some textbooks state that when doing L-S coupling and applying Hund's rules, "The maximum values of S and L are subject to the condition that no two electrons may have the same pair of values for m(sub s) and m(sub l)...

I would like to ask two questions about Hund's rules and L-S coupling: 1. Some textbooks state that when doing L-S coupling and applying Hund's rules, "The maximum values of S and L are subject to the condition that no two electrons may have the same pair of values for m(sub s) and m(sub l)...

I'm not sure where this should go - I didn't see any LaTeX-related forum. Is there a way to create a horizontal rule that doesn't take up the entire width of the page? Thanks, Sam

okay I got a question asking me to determine the currents in I1, I2, and I3 in a circuit assuming that the resistance of each battery is 1 ohm (I drew a separate 1ohm resistor after every battery to represent this) and the terminal voltage of the 6V battery now I have drawn a diagram of the...

Hello all I have a few questions about Precipitates and Solubility Rules (a) How do you write an equation for the dissociation of a salt in a solution? (b) How do you write a net ionic equation? (c) Which ions tend to form soluble salts? insoluble salts? ( Pb[2+] Na[+], k[+], NH4[+]...

A hydrogen atom is in the 4p state. To what state or states can it go by radiating a photon in an allowed transition? Anyone have any ideas?

Rules of Summation...Help Me Please I have a vauge idea of what these rules mean: 1. \sum^n_{i=1}c=cn 2. \sum^n_{i=1}i=\frac{n(n+1)}_{2} 3. \sum^n_{i=1}i^2=\frac{n(n+1)(2n+1)}_{6} 4. \sum^n_{i=1}i^3=\frac{n^2(n+1)^2}_4 are these rules saying that if i have...

We all know 2+2=4,2*2=4,2^2=4, etc. So, if we say O(1) means +, O(2) means *, etc. Then we know that 2 O(x) 2 = 4. So, how do we solve for x? If we have 3 O(x) 5 = 24, what is x? Let's say that - is O(-1), / is O(-2), etc (can you define something that uses what it describes to define...

New to quantum fields and I am wondering what is the rule which all of the small particles follow. Or know any resources where I can learn.

I was curious to what rules Police accident investigation people use to work out the speed of cars before accidents. Also an explanation of how these work would be useful as well. I have also herd but i don't know how true it is that the coefficient of friction from any make of tyre is about...

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...

Is this simplified? Use the power rule and the summation rule to find f ' (x) and simplify where possible f(x) = ((2x^3)/5) - x^2 +3/8 f ' (x) = d/dt(((2x^3)/5) - x^2 +3/8) = ((6x^2)/5) - 2x Is this the right answer?

(see attached for circuit diagram) E1 = 40V E2 = 300V E3 = 80V r1 = 200 ohm r2 = 80 ohm r3 = 20 ohm r4 = 70 ohm I've come up with some very ugly equations to express the current flow across various parts of the circuit, as follows: I_1 = I_5 + I_6 I_3 = I_1 + I_2 I_3 =...

Please can you help with the following. If a ball which is bias weighted at a point on its circumference is enclosed in a socket which is few thousandths of an inch bigger in diameter than the ball will the weighted bias cause the ball to rotate as the socket is turned in the opposite...

Im having a bit of trouble with some problems using Kirchoff's rules. The problem states for me to calculate each of the unknown currents: I1, I2, & I3 for the circuit diagram attached. Now I've drawn my diagram and I've gotten my three equations for three unknowns, but i keep getting a...

On the outside the government of the United States let's the countries of the would think they are in control. But in fact the United States could crumble any government, destroy any army, or cut of supplies to anyone whenever they want. Anyone who thinks different is lieing to themself.

Just a, possibly-interesting, thought: If there is a being that chooses what is right and wrong, then what tells all the other beings that they must obey this being's standards? The being Itself can't tell us that, since we would have to assume that the being knows whether it is right or...

Math Rules Chem:) NO_3 What is the molecular formula of this compound if molar mass is 324.06. Math begins: aN + bO = 324.06 N=14, O = 16 14a + 16b = 324.06 N = O/3, O = 3N, a = b/3, b = 3a a = 162.03/32 =~ 5, b =~ 15. N_{5}O_{15}

If you do some simple manipulations of the equations E=hf, E=1/2mv^2, P=mv, and p=h/<lambda>, one can derive that the momentum is h/<lambda> or that it is h/(2<lambda>). I know that photons do not always follow normal mechanics, but do they follow the usual rules for mechanics for collisions...