![Radioactive Decay](http://s1.studyres.com/store/data/004411660_1-8891592511b4f16a83cfe03e28512f6d-300x300.png)
Radioactive Decay
... matter how many neutrons are added (there is some thought that huge stable atoms may be able to be created, but that’s another story). Neutrons hold the protons together, but neutrons themselves are not stable, an isolated neutron will decay in a short period of time, if the nucleus gets large and t ...
... matter how many neutrons are added (there is some thought that huge stable atoms may be able to be created, but that’s another story). Neutrons hold the protons together, but neutrons themselves are not stable, an isolated neutron will decay in a short period of time, if the nucleus gets large and t ...
chapter4
... Electric force responsible for binding of electrons to atoms and atoms to each other Magnetic forces arise from moving charges and currents Electric motors exploit magnetic forces ...
... Electric force responsible for binding of electrons to atoms and atoms to each other Magnetic forces arise from moving charges and currents Electric motors exploit magnetic forces ...
Nucleus
... Raisins are the negatively charged particles(electrons) Electrons float in a pudding of positive charge (equal to negative charge) which makes neutral atom ...
... Raisins are the negatively charged particles(electrons) Electrons float in a pudding of positive charge (equal to negative charge) which makes neutral atom ...
Morgan Rezer
... 15. List the objects in order from the object with least inertia to the object with the most inertia: Feather, large rock, pencil, book. Explain your reasoning. (Least) Feather, pencil, book, rock (Most) - The more mass an object has, the more inertia it has. 16. Explain how an object can have force ...
... 15. List the objects in order from the object with least inertia to the object with the most inertia: Feather, large rock, pencil, book. Explain your reasoning. (Least) Feather, pencil, book, rock (Most) - The more mass an object has, the more inertia it has. 16. Explain how an object can have force ...
The concept of Force
... • Force resulting from gravitational attraction • W = mg • g is the gravitational constant of the planet Units are N/kg or m/s2 • Weight is always directed vertically downward • If mass is in kg and g in N/kg then Weight has units of N ...
... • Force resulting from gravitational attraction • W = mg • g is the gravitational constant of the planet Units are N/kg or m/s2 • Weight is always directed vertically downward • If mass is in kg and g in N/kg then Weight has units of N ...
Conservative Forces and Potential Energy
... gravitational potential energy of the object. The only physically significant quantity is the change in potential energy, and not the absolute value of the potential energy. For this reason, in problem solving, we usually choose a convenient point (table top level, ground level, sea level, etc.) and ...
... gravitational potential energy of the object. The only physically significant quantity is the change in potential energy, and not the absolute value of the potential energy. For this reason, in problem solving, we usually choose a convenient point (table top level, ground level, sea level, etc.) and ...
Physics 5153 Classical Mechanics Velocity Dependent Potentials
... To show that the Lorentz force satisfies Eq. 12, we will work in Cartesian coordinates. First, ~ is equivalent to the standard potential that we use. Therefore, we we note that the term −e∇φ only need to consider the term ...
... To show that the Lorentz force satisfies Eq. 12, we will work in Cartesian coordinates. First, ~ is equivalent to the standard potential that we use. Therefore, we we note that the term −e∇φ only need to consider the term ...
Action / Reaction forces
... Dynamics is the study of why an object moves the way it doeswhy it starts to move instead of remaining at rest, why it speeds up or moves on a curved path, and why it comes to a stop. Newton’s most famous book was “Principia”, published in 1687. This book first listed what came to be known as Newton ...
... Dynamics is the study of why an object moves the way it doeswhy it starts to move instead of remaining at rest, why it speeds up or moves on a curved path, and why it comes to a stop. Newton’s most famous book was “Principia”, published in 1687. This book first listed what came to be known as Newton ...
A strange, elusive phenomenon called supersymmetry was
... considers the atomic nucleus to be an ensemble of weakly interacting neutrons and protons (nucleons) held in a potential energy well. The nucleons can occupy various orbits, analogous to the orbits of electrons around an atom, but now with two sets of them— one for protons, one for neutrons. Like el ...
... considers the atomic nucleus to be an ensemble of weakly interacting neutrons and protons (nucleons) held in a potential energy well. The nucleons can occupy various orbits, analogous to the orbits of electrons around an atom, but now with two sets of them— one for protons, one for neutrons. Like el ...
Research Papers-Quantum Theory / Particle Physics/Download/1259
... It is believed that, quantum theory is most promising theory to describe almost physical phenomena of nature, but gravity is still apart to it. Since quantum theory can explain several atomic phenomena successfully and mostly tested at atomic scale while gravity governs whole universe and it has inf ...
... It is believed that, quantum theory is most promising theory to describe almost physical phenomena of nature, but gravity is still apart to it. Since quantum theory can explain several atomic phenomena successfully and mostly tested at atomic scale while gravity governs whole universe and it has inf ...
Nuclear force
![](https://commons.wikimedia.org/wiki/Special:FilePath/ReidForce2.jpg?width=300)
The nuclear force (or nucleon–nucleon interaction or residual strong force) is the force between protons and neutrons, subatomic particles that are collectively called nucleons. The nuclear force is responsible for binding protons and neutrons into atomic nuclei. Neutrons and protons are affected by the nuclear force almost identically. Since protons have charge +1 e, they experience a Coulomb repulsion that tends to push them apart, but at short range the nuclear force is sufficiently attractive as to overcome the electromagnetic repulsive force. The mass of a nucleus is less than the sum total of the individual masses of the protons and neutrons which form it. The difference in mass between bound and unbound nucleons is known as the mass defect. Energy is released when nuclei break apart, and it is this energy that used in nuclear power and nuclear weapons.The nuclear force is powerfully attractive between nucleons at distances of about 1 femtometer (fm, or 1.0 × 10−15 metres) between their centers, but rapidly decreases to insignificance at distances beyond about 2.5 fm. At distances less than 0.7 fm, the nuclear force becomes repulsive. This repulsive component is responsible for the physical size of nuclei, since the nucleons can come no closer than the force allows. By comparison, the size of an atom, measured in angstroms (Å, or 1.0 × 10−10 m), is five orders of magnitude larger. The nuclear force is not simple, however, since it depends on the nucleon spins, has a tensor component, and may depend on the relative momentum of the nucleons.A quantitative description of the nuclear force relies on partially empirical equations that model the internucleon potential energies, or potentials. (Generally, forces within a system of particles can be more simply modeled by describing the system's potential energy; the negative gradient of a potential is equal to the vector force.) The constants for the equations are phenomenological, that is, determined by fitting the equations to experimental data. The internucleon potentials attempt to describe the properties of nucleon–nucleon interaction. Once determined, any given potential can be used in, e.g., the Schrödinger equation to determine the quantum mechanical properties of the nucleon system.The discovery of the neutron in 1932 revealed that atomic nuclei were made of protons and neutrons, held together by an attractive force. By 1935 the nuclear force was conceived to be transmitted by particles called mesons. This theoretical development included a description of the Yukawa potential, an early example of a nuclear potential. Mesons, predicted by theory, were discovered experimentally in 1947. By the 1970s, the quark model had been developed, which showed that the mesons and nucleons were composed of quarks and gluons. By this new model, the nuclear force, resulting from the exchange of mesons between neighboring nucleons, is a residual effect of the strong force.