Nucleus Definition and 409 Threads

Ok, the problem is: The nucleus of 8Be, which consists of four protons and four neutrons, is very unstable and spontaneously breaks into two alpha particles (helium nuclei, each consisting of two protons and two neutrons). (a) What is the force between the two alpha particles when they are...

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?

Can somebody tell me what is the angular velocity of an electron (more or less) around the nucleus. (it doesn't matter whether it's one in the most inner shell or the most outter, I just need an average value) thanks

What is the acceleration of a particle orbiting around a nucleus? v/(4(pi)) = a ? I cannot find this info... Will you help me? r = r0

I was wondering if I could get some guidance regarding the following question: "A radioactive nucleus, moving in a straight line, decays and emits an alpha particle. In the rest frame of the nucleus, the emitted particle moves with a velocity 6c/7, at an angle of 60 degrees to the direction...

Another way to think ... Dear reader, Now what i am writing suerly would look different from the reason give by physicists about black body absorbtion of light. Before i begin i would like to make certain things clear. 1) let's asume when more energy is given, the speed of electrons...

hello people. I am kind of stuck in this problem: electrons in the nucleus of an atom orbit around the nucleus and accelerate. They will also continously emit electromagnetic radiation and therefore they must lose energy to do so because of the conservation of energy. As a result, wouldn't...

Calculate the smallest allowed energy of an electron were trapped inside an atomic nucleus of diameter 1.4x10^-14 meters. Compare this number with the several MeV of energy binding protons and neutrons inside the nucleus. On this basis, should we expect to find electrons within the nucleus...

ive read the answer so many times, i just can't think of the reason now... since the protons are positive and the electrons are negatively charged, why don't the electrons simply fall into the nucleus?