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The conservation of energy tells us that energy before the collision equals energy the comes out of the system after the collision. In the case of a stationary target nuclei and a neutron beam we have as our initial energy
Rest mass (E - mc2) of the nuclei and the particle in the beam.
Kinetic energy of the nuclei and the neutron projectile.
So the initial energy looks like
KEn + mn*c2 + KEnuc + mnuc*c2
We note that the initial KE of the stationary nucleus is zero and omit this term.
KEn + mn*c2 + mnuc*c2
Assuming neutron absorption (i.e. only 1 particle) all of the energies after the collision are described by
KEnuc_f + mnic_f*c2
Use the principle of conservation of energy to set the two equal to one another.
KEn + mn*c2 + mnuc*c2 = KEnuc_f + mnic_f*c2
Now solve for the final KE of the combined nuclei, KEnuc_f
KEnuc_f = (KEn + mn*c2 + mnuc*c2) - (mnic_f*c2)
This is the recoil energy.
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What happens when an atom absorbs energy?
It is actually the nucleus of the atom that emits energy. The energy we can harness comes from fission or splitting of the nucleus of uranium235 or plutonium239. The nucleus splits into two parts which recoil and give up their kinetic energy as heat when they are stopped in the fuel, and there is also some energy from gamma rays at the same time. Basically in the process the final results of the fission have lost mass, and this appears as energy following the relation E = M x C2. Atoms can also emit energy as radioactivity, without fissioning. This can be alpha, beta, or gamma radiation. Alpha and beta are particles, so that the resulting nucleus is changed and there results a different element. Gamma is a penetrating ray in the electromagnetic spectrum and corresponds to a change in the energy state of the nucleus, but it remains the same element.
What is meant by recoil electron in compton scattering?
when any incident rays or electromagnetic radiation collides with a target then a electron releases from the outer shell of the atom or molecule,having a high wavelength.this is called recoiling of electron in compton effect
What is nuclear energy made from?
In general, nuclear energy comes from the energy associated with atomic nuclei. There is nuclear fusion, which happens in stars and in fusion weapons, and there is nuclear fission. Nuclear fusion is the "combining" of lighter atomic nuclei to create heavier ones, and many fusion reactions release energy. (Again, think of stars.) In contrast, nuclear fission is the "splitting" of atomic nuclei to release energy. The latter is technology that we've come to use fairly widely, and we have developed fission nuclear weapons and the nuclear reactor to tap nuclear energy via fission. Let's look at the latter device, the reactor. The fission of nuclear fuel (also known as atomic fuel, such as uranium or plutonium) is where we get nuclear energy. And what happens during nuclear fission is that the nuclei of fuel atoms absorb neutrons and fission (split), releasing lots of energy. In fission, that larger atomic nucleus breaks into a pair of smaller ones, and these fission fragments recoil with a lot of kinetic energy. The fuel traps the fission fragments, and the energy they came away with is converted into thermal energy in the fuel. We derive nuclear energy by tapping the energy of formation of atomic nuclei via fusion or fission. This is advanced technology that is less than a century old. We're still working to use it well and wisely.
Why can't an electron in a photoelectric effect event absorb more than one photon?
Because it can't. It's a one-at-a-time thing. That's what quantum mechanics is based on. If a photon arrived at a "possible reaction site" and it isn't the "right" energy (it's energy is too high or too low) to cause the event to happen, it won't happen. And if two arrive at the correct energy, only one participates. It's like the little guys formed a "back room deal" as to what and how they were going to interact! Things happen one at a time owing to the "will" of the participants. Quantity control is a reality of quantum mechanics. The photons and electrons don't want it any other way (by their very natures), so it won't happen any other way. They refuse any other offers.
Are electrons of an atom attracted to the positive charge of neutrons?
Neutrons are particles with a "balanced" makeup and have no net charge. The electron is negatively charged. There is no electrostatic interaction that results in a neutron being attracted to an electron. Neutrons can interact with electrons if a neutron is flying through space and encounters electrons in orbit around an atomic nucleus (which will result in scattering), but it ain't common. Electrons are hard to hit; they are very small targets for a neutron. And if they are struck by the much heavier neutron, they will recoil. Neutrons are usually stopped by a collision with an atomic nucleus. If a neutron doesn't hit anything, it will decay after a while (half-life of about 15 minutes). There ain't any free neutrons hanging around. The only interaction where the two little guys will be attracted to each other is through the gravitational force. It DOES work across the board (at all levels), but gravity is soooooo weak at this level (owing to the minuscule masses of the particles involved) that it can be pretty much disregarded.
Does recoil velocity answer involve in the calculation of final kinetic energy?
Whether you need it depends on the specific situation, but the recoil velocity does affect the total energy.
What ia a gun recoil spring?
Semi-automatic firearms, such as the 1911A1 pistol use a spring to help absorb some of the recoil energy, and use the energy to reload the pistol.
What happens when an atom emits?
It is actually the nucleus of the atom that emits energy. The energy we can harness comes from fission or splitting of the nucleus of uranium235 or plutonium239. The nucleus splits into two parts which recoil and give up their kinetic energy as heat when they are stopped in the fuel, and there is also some energy from gamma rays at the same time. Basically in the process the final results of the fission have lost mass, and this appears as energy following the relation E = M x C2. Atoms can also emit energy as radioactivity, without fissioning. This can be alpha, beta, or gamma radiation. Alpha and beta are particles, so that the resulting nucleus is changed and there results a different element. Gamma is a penetrating ray in the electromagnetic spectrum and corresponds to a change in the energy state of the nucleus, but it remains the same element.
What does a gun recoil spring do?
Typically a recoil spring absorbs SOME of the energy from a weapons recoil and also resets the firearm's components (chambering a round, hammer, etc...) to allow the firearm to be shot again.
What energy is there when a ball bounces?
Basically 2 types of energy are involved, Kinetic and Potential energy. When the ball bounces the kinetic energy starts changing into potential energy or as commonly referred to as energy of recoil.
How do you measure gun recoil?
Recoil is measured in pounds or kilograms of force- over a measured period of time. How recoil is FELT is not only how hard a firearm pushes against you, but over what time interval. A push that builds up gradually will feel less than one that is quick and sharp. You will usually see it expressed as ft lbs- one foot lb is the energy of 1 lb dropping one foot. The recoil energy is most precisely measured with an electronic gauge.
Is most of the energy released by nuclear fission is in the form of gamma rays?
No, that is about 15 percent, most comes from the kinetic recoil energy of the fission fragments, which is then converted to thermal energy.
True or false the energy from nuclear fission is released as heat?
Heat is produced by the recoil (kinetic energy) of the fission fragments, when they are stopped in the fuel material
What is the recoil of a 308?
assuming that you talking about a .308 Winchester or the 7.62 NATO round recoil is factor of pure physics the lighter the weapon the greater the free recoil (kick).the heavier the bullet the greater the kick. the higher the velocity the more kick.there are many factors involved in calculating the recoil of any firearm.what does the gun weigh ?what is the barrel length? what is the bullet weight? is the gun a bolt action or auto-matic ? is it gas or recoil operated ? does it have a recoil reducer of some type? how effective is this recoil reducer? knowing the interior ballistics of a cartridge is only the beginning of calculating the recoil and barrel flip of any firearm. in my observation over many years most .308 guns have recoil effect of between 7-15 foot pounds of free recoil energy.
What is a sentence with the word recoil?
The recoil of the rifle bruised her shoulder.The recoil sent him flying backwards.
Is there an item to stop recoil?
You can never stop recoil. You can reduce the felt effects, but, the recoil will still be there.
What happens when an atom absorbs energy?
It is actually the nucleus of the atom that emits energy. The energy we can harness comes from fission or splitting of the nucleus of uranium235 or plutonium239. The nucleus splits into two parts which recoil and give up their kinetic energy as heat when they are stopped in the fuel, and there is also some energy from gamma rays at the same time. Basically in the process the final results of the fission have lost mass, and this appears as energy following the relation E = M x C2. Atoms can also emit energy as radioactivity, without fissioning. This can be alpha, beta, or gamma radiation. Alpha and beta are particles, so that the resulting nucleus is changed and there results a different element. Gamma is a penetrating ray in the electromagnetic spectrum and corresponds to a change in the energy state of the nucleus, but it remains the same element.
