Proton Definition and 813 Threads

  1. E

    Is the Proton's Half Life Really 10 to the Power of 32 Years?

    Hi I've been reading websites about particle physics recently, and in some places they say the proton is stable and others they say it is unstable, with a half life of 10 to the power of 32 years. I know it is the most stable baryon. The only possible decay I've read about is a proton...
  2. S

    What Is the Work Required to Accelerate a Proton from 0.5c to 0.7c?

    Can some one help me out here, I have tried using several different methods but I still don't know what I am doing wrong. The question is: A proton in a high energy accelerator moves w/a speed of 0.5c, use the work-energy theorem to find the work required to increase its speed to 0.7c...
  3. H

    A proton colliding with a stationary carbon nucleus

    A proton of mass m undergoes a head-on elastic collision with a stationary carbon nucleus of mass 12m. The velocity of the proton is 395 m/s in the positive x direction. The velocity of the center of mass of the system is 30.38 m/s. What is the velocity of the proton after the collision?
  4. P

    Proton in Magnetic field - am I correct?

    Proton in Magnetic field -- am I correct? One of my Physics ISU questions is as follows: - A proton moves in a circular path perpendicular to a 1.10 T magnetic field. The radius of the path is 4.5 cm. calculate energy of the proton in eV Well i had hard time doing it but here we go: my...
  5. T

    Proton Splitting in Nitrotoluene

    Hello. I remember a problem I had with drawing a splitting tree for nitrotoluene. The coupling constants varied, you know, para, meta, ortho, they were all different. My teacher told us to assume certain values for each. What I don't understand is how a proton in nitrotoluene (or even toluene...
  6. C

    Coulomb's Law and stationary proton

    Yeah, I'm having difficulties with this one question... A stationary proton holds an electron in suspension underneath it against the force of gravity. How far below the proton would the electron be suspended? I understand that Fe = Fg so i would have __ = mg... but i don't know what...
  7. benzun_1999

    Charge on a electron & proton.

    Dear reader, What is the excat charge on a electron and proton? What is the net energy in a electron? I strongly feel that the charge on a electron is not a constant. -Benzun all for God.
  8. P

    Is the Case for Photons as Conductors of Electrical Energy Valid?

    What do you make of this, now that the theory has some math... Just seeing what you think. Paden Roder http://www.geocities.com/natureoflight/natureoflight
  9. Chi Meson

    Why can't a neutron be thought of as a proton plus an electron and neutrino?

    Wow. Clean slate! I like the format! And I've got a question. In elementary physics, it is said that the neutron can "sorta" be thought of as a proton plus an electron together. The mass of the neutron is slightly higher than a proton, by approximately the mass of an electron; in beta...
  10. D

    What happens to the kinetic energy of a speedy proton

    Hello, What happens to the kinetic energy of a speedy proton when its relativistic masss doubles? a) it doubles b) it more than doubles c) it less than doubles d) it must increase but impossible to say by how much Now, what kind of question is this? Or should I ask what klind of...
  11. D

    What is the change in kinetic energy of the proton?

    A proton moves .1m along hte direction of an electric field of magnitude 3V/m. what iss the change in kinetic energy of the proton? I have KE = qE/d...1.6x10^-27 * 3V/m /(.1^2)= 4.8x 10^-25 but got it wrong on the test. What did i do wrong? Dx
  12. D

    A proton has a speed of 3 x 10^6 m/s

    Hello, I need help deriving a formula to solve for this please. A proton has a speed of 3 x 10^6 m/s in a direction perpendicular to a uniform magnetic field and the proton moves in a circle radius .2 m. what is the magnitude of the magnetic field? If someone can show me the all formulas...
  13. D

    What is the change in KE of the proton?

    A proton moves .1 m along the direction of an electric field of magnitude 3 V/m. What is the change in KE of the proton? Is this the corrrect formula? KE = Q_pV_accel Through substition i came up with an swer of 3.2x10^-20J but i don't think its correct? Can you help me solve for this...
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