Proton Definition and 835 Threads

Homework Statement A proton in a tin nucleus is known to lie within a sphere whose diameter is about 2.2 multiplied by 10E-14 m. What are the uncertainties in the momentum and kinetic energy of the proton? Homework Equations delta(x)*delta(p) >= hbar delta(E)*delta(t) >= hbar The...

Hello; Is this statement true? A hydrogen positive ion would have no electrons, and pure hydrogen itself has no neutrons. Therefore, would it simply be a proton? Thanks.

Homework Statement A proton is accelerated to 3*10^6 m/s and heads towards a spherical charge distribution having a charge of 1.6*10^-18 C. Approximately how close to the distribution does the proton travel before stopping? (Assume inital potential energy of proton is zero). Vi= 0 Q=...

Proton Beam therapy is an advanced technique to destroy tumors by concentrating a high energy beam of protons to a specific depth inside the body of a patient. These proton beams are produced by accelerators and steered to the patient-treatment rooms by magnets. In a particular cancer treatment...

What would repel, hydrogen / a proton?

Proton's Velocity Homework Statement What is the speed of the proton? Homework Equations B=u0qv/(4pir^2) The Attempt at a Solution I rearranged the equation so that I solve for velocity, v. I determined that r^2 is 1.8*10^-5 m. I plugged in 1.1*10^-3 for B. The q for the...

Homework Statement OK. So I've been given a uni lab report to write up but we were only told yesterday how to read proton NMR, and it's due in on Monday. I'm not terrible at deciphering it, but the compound I've been given the NMR for doesn't make sense (to me). I have to look at the proton...

Each proton has it's own magnetic field so it should effect the magnetic field of all nearby proton whether it is homologous (equivalent) or not. I don't understand how this discrimination arise? How a proton understand - "that proton is like me so I shoudn't ... ... ... " I mean it's...

Homework Statement An infinitely long line of charge has linear charge density λ = 3.00 pC/m. A proton is at a distance d = 14.5 cm from the line and moving directly toward the line at v = 2.00 km/s. a. (3 points) What is the kinetic energy of the proton? b. (15 points) How close does the...

Homework Statement I know that the Lande g-factor for proton is 5.58 but I would like to derive it. Here, s=1/2, l=0 and hence j=1/2. But I don't get the required value. Moreover, we have an orbital and a spin g-factor for electrons but not for proton. Is it because protons are composite...

Hi, I am a young physics student who wonders a lot about the atom, especially it's nucleus. I thought about the atom and realized that there could never be a nucleus of two protons because they both would reject each other. I have made some calculations and realized that the gravitational force...

Protons having momentum 7.63*10^-16 kg*m/s are held in a circular orbit of radius 1 km by an upward magnetic field. What is the magnitude of the field? Answer in units of T (Tesla). r=mv/qB; where r is the radius of the circular orbit, m is the mass of the particle, v is the velocity of...

Homework Statement Proton moving in -y direction with a magnetic field pointing in the +y direction with a manitude of 5.0 T. The proton has a velocity of 3.01x10^7, What is the magnitude and direction of the magnetic force. Homework Equations F=q(v x B) The Attempt at a Solution...

Homework Statement Consider a head-on, elastic collision between massless photon (momentum Pnot and energy Enot) and a stationary free electron. Assuming that the photon bounces directly back with momentum p (in the direction of -Pnot) and energy E, use conservation of energy and momentum to...

Homework Statement I have attached the image. The question is -- What is the potential energy of a proton at the midpoint of the capacitor? I know this is an extremely easy problem, but I can't seem to get the formula right... Homework Equations I tried U = qV, using 1.6*10^-19 *...

I have multiple choice questions, but I only get one chance, so I want to make sure I answer correctly. 1. A charged rod is brought near a suspended object, which is attracted to the rod. Can we conclude that the suspended object is charged? Explain. o Yes o No Yes, the suspended object is...

Homework Statement A set of parallel conducting plates are separated by .05 m. When the plates are fully charged to a potential difference of 20 V, how much work would have to be performed to move a proton from the negatively charged plate to the positively charged plate? My second question...

Homework Statement A proton is traveling with a speed of v = 2.993x108 m/s. Calculate the value of the inertial mass for this proton. Assume that the speed of light is c = 3.000 x 108 m/s and that the mass of the proton is 1.673 x 10-27 kg. Note: Do your calculations to 4 significant...

Homework Statement A proton is traveling with a speed of v = 2.990x108 m/s. Calculate the (relativistically correct) value of the kinetic energy for this proton. Assume that the speed of light is c = 3.000 x 108 m/s and that the mass of the proton is 1.673 x 10-27 kg. Note: Do your...

1. Homework Statement A proton traveling at a speed of 7.22 *106m/s enter the gap between the plates of a 7.86 cm wide parallel plate capacitor. The surface charge densities on the plate are ± 4.98 *10-6 C/m2. How far (in m) has the proton deflected sideways when it reaches the far edge of...

Homework Statement Why do diarrhea patients receive a solution containing a high concentration of glucose and salt?

A proton is shown to pass between two parallel conducting plates across which a steady potential difference is maintained. Its path curves upwards. An alpha particle enters at the same point with the same velocity as the proton. Add its path to the diagram. Why is it like this. The path is...

As I know chemical potential of two reacting substances strongly depends on difference in Fermi energy between them. Fermi energy is inversely proportional to the mass of particles. Does that mean that Fermi energy of bare proton will be 2000 time smaller than that of electron? Usually...

Homework Statement Given the reactions: p + 9 Be --> 10B + "gamma" p + 9 Be --> 9B + 1n p + 9 Be --> 9Be + 1p p + 9 Be --> 8Be + 2H p + 9 Be --> 7Be + 3H p + 9 Be --> 6Li + 4He Calculate: a) Q-value b) kinematic threshold energy of the proton...

N-14 + alpha --> O-17 + proton N-14 + alpha particle --> O-17 + high energy proton alpha particle used was 7.70MeV. Q1. Calculate the energy to be shared in the interaction. Q2. Explain why the proton cannot take all of the available energy. The following date is given for...

The B+ particle and B- particle are produced by higher energy collisions between protion and anti protons. The B meson has a mass of 5.28 GeV/c^2. The proton has mass 938 MeV/c^2. Calculate the min KE of the proton neccesary for a B+ B- pair to be produced from a proton anti-proton head on...

I know that proton decay has falsified SU(5) based around 10e30 years. What proton decay of SO(10)? Are SUSY SU(5) and SUSY SO(10) still viable? If the experiment continues with a null result, what models are next in line to be falsified? Could protons last forever and thus falsfy...

What are everyones thoughts? Just google the paper if you havn't read it yet.

I have a problem here that has me a bit suck: In scattering between incident neutrons and target protons at rest, show that the angle between the two scattered particles is always 90 degrees. I have set up the conservation of energy and momentum equations and have: Energy: Tn=T'n+Tp...

Here is the problem: Use the fact that the form factor, F(q), is the Fourier transform of the normalised charge distribution \rho(r), which in the spherically symmetric case gives F(q) = \int \frac{4\pi \hbar r}{q}\rho(r) sin(qr/\hbar))dr to find an expression for F(q) for a simple...

Homework Statement Grand unification theories predict that the proton has a long but finite lifetime. Current experiments based on detecting the decay of protons in water infer that this lifetime is at least 10^32 years. Assume 10^32 years is, in fact, the mean lifetime of the proton...

How will the future of the universe be if proton decay does not occur? Does it mean that the degenerate era will last longer?

Homework Statement Calculate the veolcity of a proton of energy 0.12 keV proton mass = 1.7 x 10^-27 Homework Equations The Attempt at a Solution I thought... 0.12 keV = 120 eV 120/1.60 x 10^-19 = 7.5 x 10^20 J E = 0.5mv^2 sqrt(2E/m) = v but I'm getting something to x 10^23 so its...

Homework Statement One of the thermonuclear or fusion reactions that takes place inside a star such as our Sun is the production of helium-3 (3He, with two protons and one neutron) and a gamma ray (high-energy photon, denoted by the lowercase Greek letter gamma, ) in a collision between a...

Greetings, I'm trying to understand how protons might move through solid water ice. More specifically this concerns how deuterium/hydrogen ratios are used to date ice core samples drilled into glaciers. On one hand I am told that, once it is deposited from the atmosphere in the form of...

Homework Statement Calculate the speed parameter v/c of a particle with a momentum of 12.5 MeV/c if the paricle is proton Homework Equations E_{}2 = m_{}2c_{}4 + p_{}2c_{}2 [b]3. The Attempt at a Solution Btw, the numbers above are powers. Ok, so i followed what my...

hey i just need to know if these answers are right i think i got it hopefully A proton of mass 1.67 x 10-27 kg is fired with a velocity of 1000 ms-1, into a uniform magnetic field of 2.00 T where the velocity and magnetic field are at right angles. (a) What is the magnitude and...

hey i just need to know if these answers are right i think i got it hopefully A proton of mass 1.67 x 10-27 kg is fired with a velocity of 1000 ms-1, into a uniform magnetic field of 2.00 T where the velocity and magnetic field are at right angles. (a) What is the magnitude and...

Homework Statement A proton with mass 1.67 x 10^-27 kg is propelled at an initial speed of 3.00x10^5 m/s directly toward a uranium nucleus 5.00 away. The proton is repelled by the uranium nucleus with a force of magnitude F=α/x^2, where x is the separation between the two objects and α =...

A metal target sphere of 30 cm diameter suspended out in space is given a charge of +1.00 nC. Through what voltage must a distant proton be accelerated from rest (by some sort of space weapon) if it is to arrive at the sphere at a speed of 8.2*10^4 m/s? (Neglect any gravitational effects.)...

A hydrogen atom is consists of a proton (uud quarks) and an electron. Is there a heavier atom of hydrogen that consists of a type of proton (ccs or ttb quarks) and a muon or tauon respectively? Are these

A metal target sphere of 30 cm diameter suspended out in space is given a charge of +1.00 nC. Through what voltage must a distant proton be accelerated from rest (by some sort of space weapon) if it is to arrive at the sphere at a speed of 8.2*10^4 m/s? (Neglect any gravitational effects.) V=...

I know they are strongly attract each other, but which one will attract first? is it depend on the mass of proton and electron? if yes, then it would be electron attract to the proton, am I right?

Homework Statement A point charge q = -0.368 nC is fixed at the origin. Where must a proton be placed in order for the electric force acting on it to be exactly opposite to its weight? Let the y-axis be vertical (positive up and negative down) and the x-axis be horizontal (positive to the...

Homework Statement A point charge q = -0.5nC is fixed at the origin. Where must a proton be placed in order for the electrical force acting on it to be exactly opposite its weight? Homework Equations F= k(q1)(q2) ------------ r^2 The Attempt at a Solution Trying to...

Homework Statement A charged particle (either an electron or a proton) is moving rightward between two parallel charged plates separated by distance d = 2.20 mm. The charge on the left has a potential of -70V and the charge on the right has a potential of -50V. The particle is slowing from...

Homework Statement A proton moves at 4.50x10^5 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of 9.60x10^3 N/C. Ignoring any gravitational effects, find a) the time interval required for the proton to travel 5.00 cm horizontally b) its vertical...

Homework Statement Suppose that an electron is set down 10e-10 m away from a proton that is "pinned down" so that the proton cannot move. The electron has a velocity V0= 1.6e6 m/s pointing away from the proton, along the line between the proton and the electron. What is the force on this...

Homework Statement The surface charge density on an infinite charged plane is -2.6*10^-6 C/m^2. A proton is shot straight away from the plane at 2.2*10^6 m/s. How far does the proton travel before reaching its turning point? Homework Equations Im very unsure of what equations to use, the...

Homework Statement Homework Equations Ki + Ui = Kf + Uf The Attempt at a Solution I need to find the velocity of the proton when it's 2.3mm's to the right of where it is now. I need to find the acceleration of the proton. I believe that I should use F=ma to do this. The only...