Neutral Definition and 338 Threads

Hi folks, A system of two masses, stationary with respect two each other, is the starting point. For convenience I'll specify one mass as being much larger than the other. The only force acting between them is their mutual gravitational attraction. At time zero they are an arbitrary distance...

Hi. Positive charges atract negative charges, and repel positive ones. Same thing happens with negative charges. But both of them atract Neutral Charges. Is there any way for any charge to repel a neutral object? If it is, then is it possible to build any device that uses that kind of...

Homework Statement Given a situation like this: Where the two blocks are perfectly conducting materials and are touching, will they separate? If they do separate, will they have the net charge values you calculate in the initial setup using Gauss's Law? There are no numbers, it's just...

Why must a switch be at the live wire instead of the neutral wire?

How can we distinguish between neutral and charged exitons?

Hi! I wonder about how for instance water temperature is changed with regard to applied heat. You all know that if you take ice and heat it up temperture will climb until it reaches 0C. When it reaches 0C it however stobs climbing in tempertaure regardless of how much heat you supply. It is...

I want to calculate the total energy lost when a charged capacitor discharges to a neutral capacitor. It is my understanding that voltage will remain constant in the discharge, but current will decrease. What factors should be accounted for in any energy losses that would occur in this process?

I'm a bit confused as to how only one wire changes it's polarity in an alternating circuit. I also checked out a previous thread (https://www.physicsforums.com/threads/how-can-polarity-of-ac-inverse-but-keep-the-live-hot-and-neutral-cold.752605/) and didn't find a sufficient answer. I found this...

I am looking into the probability for : \mathcal{P}(B^0 \rightarrow B^0). I said that if I start from a state |B^0> = \frac{1}{\sqrt{2}} (|B_L> +|B_H>) with L(ight)/H(heavy) are the mass eigenstates, then after some time t the state will evolve: |B^0(t) > = e^{-iHt} |B^0>= \frac{1}{\sqrt{2}} (...

I was recently reading an article that attempted to explain how the results of the Cronin-Fitch experiment illustrated CP violation. (http://hyperphysics.phy-astr.gsu.edu/hbase/particles/cronin.html) However, it wasn't very well explained. Could someone please explain this to me?

What reasons prevent the decay $\omega \rightarrow \pi^0 \pi^0 \pi^0$ from happening?

Hello, I need to research online about the difference between neutral meson and neutrino oscillations. However I've found this difficult. I haven't found anywhere any comments on the differences between the two. The only thing which comes to mind is that the mesons can interact in their mass...

I was reading in Griffit's "Introduction to Elementary Particles" when I stumbled over the following Remark in chapter 4.4.3.1. CP eigenstates are constructed by |K_1> = \frac{1}{\sqrt{2}}(|K^0> - |\bar{K^0}) |K_2> = \frac{1}{\sqrt{2}}(|K^0> + |\bar{K^0}) and, assuming CP conservation...

I moved to Australia from the US and took my Crate amp and Ibanez electric guitar with me. To deal with the 240 VAC, I needed a step-down transformer. So I have this setup: The ground connector of the socket on the 120 VAC side got weak and stopped making connection (Note 1). So the guitar...

I have question that I've been thinking about for some time now, and that I can't get my head around. I an experimentalist without education in quantum field theory, and my quantum mechanics introduction courses were a long time ago, so bear with me please. As far as I understand, neutral kaons...

hi, i got a list of data containing strain for four different strain gauge, lb, and time elapsed. is there anyway i can calculate the distance from bottom of a girder using the given data to plot something like this? i have also been given the neutral axis for each strain gauge.

A neutral atom of radium isotope may be represented by: 228 Ra (88 proton number, 228 nucleon number). 88...

If i have a current of both negative and positive charges(i know that there is also current from only negative and only positive charges,i'm not confused) along an infinite wire of square cross-section,and the we put a homogeneous magnetic field normal to the current,then a Lorentz force acts on...

What happens to the electric field lines near and away from a neutral point. The neutral point of two opposite charges. (q1 and -q2)

Hello all, first time posting here. Just to give a quick background, I'm NOT an electrical engineer; I'm a motorsport mechanic by trade. However, in the motorsport world electrical work typically doesn't go beyond "start replacing parts and see where it goes", so I try to learn as much as I...

I have a spike guard that is showing line and neutral reversed. Those 2 Leds glow. This wasnt happening before the wiring was changed of the house. Now when i connect a mobile charger(with 2 pins) then the mobile gets charged, but when i connect a three pin hard drive power cord to it, then the...

Hey guys! How can this sentence be explained and what does it mean? If the couplings $$Z\nu_{\alpha}\bar{\nu}_{\beta}$$ of the neutral intermediate boson to neutrinos are flavor preserving, they are also diagonal when expressed in terms of mass eigenstates $$Z\nu_{i}\bar{\nu}_{j}.$$

Assuming that a carbon neutral fuel for cars has to be used, what would be most practical and efficient? (Assumption: there is electricity from hydropower/nuclear or possibility to grow plants for biofuels) 1) Hydrogen from water hydrolysis? (If I get it right, production is simple but the...

Why are charged objects attracted to neutral objects? If I'm correct, electrons and protons aren't attracted to neutrons.

Brief Summary of Question: One submarine starts with a neutral buoyancy 100m below the surface when it displaces 8.9m^3 of water from its ballast tanks. If the mass of the submarine is 69 metric tons what is the initial, vertical acceleration of the submarine immediately after displacing the...

Homework Statement [/B] The time-averaged potential of a neutral hydrogen atom is given by where q is the magnitude of the electronic charge, and being the Bohr radius. Find the distribution of charge( both continuous and discrete) that will give this potential and interpret your result...

Hello, my problem is as follows I've tried finding the invariant mass of the positron and pion as follows M^2=(E_e+E_{\pi})^2-(\mathbf{p_e}+\mathbf{p_{\pi}})\\ =E_e^2+E_{\pi}^2+2E_eE_{\pi}-p_e^2-p_{\pi}^2-2\mathbf{p_ep_{\pi}}\\ =m_e^2+m_{\pi}^2-2(E_eE_{\pi}+\mathbf{p_ep_{\pi}})\\...

Hello , If i was given two or three charges separated , and they all lie on the same straight line ... how can I identify the neutral point ? * Take any value for their separation , their charges and sign if you want to give an example ,, just a general question

I have questions based on my understanding on the home electrical system (USA). I am not a student, this is for my personal understanding. My understanding (please bear with me): Electrical power to the house Mains Panel comes from the secondary of the utility company transformer in the form...

Homework Statement How can I find the nuetral point between two charges or more ? Example:[/B] (-Q3)...(0.8m)......(Q2)...(0.3m)...(P)...(0.3m)...(Q1) Q1=2nC ,,, Q2=3nC,,, Q3=-4C ,,, q: Determine in which direction must be Q3 moved to make P neutral? Calculate the distance which P will be...

Could somebody take a stab at explaining how can quantum fluctuations give neutral elementary particles a magnetic moment? (in the usual explanation given by QFT textbooks, I think there are people around here denying the existence of quantum fluctuations, insert the more neutral expression...

Homework Statement After a capacitor of capacitance ##C_1## is charged up to a voltage ##V_o##, the Battery is removed from the circuit. Another capacitor of capacitance ##C_2## is connected in series with the capaciotr ##C_1##. Find the charge on each capacitor after equilibrium is attained...

Neutral conductor. Where can I find information about strange installations sharing the neutral conductor between two different installations ? Best Regards

Homework Statement Write the balanced chemical reactions in ionic and neutral forms for: i) Enargite leaching by sodium bisulfide in basic solution to form chalcocite and thioarsenate. ii) Oxygen pressure oxidation of As2S5 in acid solution to form scorodite. Assume all sulfide sulfur forms...

Homework Statement An atom of 28_13 AI decays into stable nuclide 28_14 Si by emitiing a beta particle. What's 28_14 Si ? the ans given is positive ion? in my opinion, it should be a neutral atom... which is correct? Homework EquationsThe Attempt at a Solution

Homework Statement Hi. I have convert the following equation (which is in ionic form) into neutral form: 4S2O32-+O2+2H2O=2S4O62-+4OH- The question tells me to use calcium as a counterion for all anions. Homework Equations N/A The Attempt at a Solution I basically just added calcium to the...

How to culculate neutral current in three phase system with unbalance load?

Suppose I have a positively charged conductor with a cavity. There's a positive charge inside the cavity and the system has reached electrostatic equilibrium. Then there's negative charge surrounding the cavity and positive charge on the surface of my conductor. If I apply gauss law to the...

Dear All here we have two examples of Generator Nuteral Grounding my question about Earth switch closing Example -1 if three generators are in operation and one earthing switch is closed, can we close generator-2 or generator-3 earthing switch closed at a time of parallel operation? yes...

how much is the current in a neutral line of 3phase and 4 wire system with voltage of 0.38/0.22kV. where we have 8 loads which each load is 2 kVA. 3 loads connected to each phase of A and B and 2 loads connected to phase c.

Hello, I am trying to design an experiment where I can calculate the distance at which polarization will not have a measurable effect on a neutral object, from a sphere charged by a Van Der Graaf generator. I am measuring the weight change caused by the polarization of the neutral object with...

Let's add a simple uncharged massive particle to, say, the standard model of particle physics. The question is about the physical, observable consequences of this modification. The first question is if the following considerations are correct, and if not what is wrong. From a classical...

1. 0.250 M of NH4Br 2. Ka for NH4 = 5.52 x 10-10 and Kb for NH3 = 1.81 x 10-5 3. So I broke the salt down into its constituents and considering Br is neutral and NH4 is an acid, NH4Br is acidic. I am just confused with how to calculate the pH. I thought that I should do this...NH4 +...

I understand that in an electrical outlet, "ground" is wired directly from the outlet to the ground, whereas neutral is wired from all the outlets to the breaker box or wherever in the house, then to the ground, and that neutral is intended to carry current. That being said, I am confused...

what is the difference between acid,base,salt, amphoteric and neutral compounds ? How all these properties are related to pH scale? Could anyone explain in detail pls?

p -> e+ + pi° is >10^33 years. what conservation law does this limit test? p is uud pi° is uu or dd where the second quark of each is an antiquark baryon number is not conserved 1 = 0 + 0 charge is conserved lepton number is not conserved 0 = -1 + 0 not sure what this...

Homework Statement A point charge q is situated a large distance r from a neutral atom of polarisability α. Find the force of attraction between them. Homework Equations \vec{E}_{mono}(r)=\frac{q}{4\pi\epsilon_0r^2}\hat{r}...

In an AC circuit, we know that the polarity inverses, and what i know is that the flow of current also will therefore inverse.. which means that the live will become negative and the neutral will become positive.. What i can't understand is how the polarity inverses but the live is still the hot...

How can the neutral axis of a concrete column under biaxial bending be determined. I mean if the load P is given along with the eccentricities ex and ey, how could the N.A. location and orientation be computed? Thank you.

I observed the following configuration in a factory: Power supply from a generator (400 V line-to-line) is stepped up to 11 KV (line-to-line), which is then fed to another transformer that produces a stepped-down, 2-phase output. The step-down transformer has 3 input terminals. Step-up...