2gravity a new concept
... This concept for gravitation describes the only action that can generate what appears to be a monopole force of gravitational attraction from within all bodies of matter. Within all protons, with or without electrons in orbital trajectories, the protons two up quarks and one down quark oscillate by ...
... This concept for gravitation describes the only action that can generate what appears to be a monopole force of gravitational attraction from within all bodies of matter. Within all protons, with or without electrons in orbital trajectories, the protons two up quarks and one down quark oscillate by ...
Forces
... She resisted the forces applied by 5 people in her class all at once. They applied a total force of 95 N to the right, and Ladoris still did not move. 1. Draw a force diagram 2. What was the net force? ...
... She resisted the forces applied by 5 people in her class all at once. They applied a total force of 95 N to the right, and Ladoris still did not move. 1. Draw a force diagram 2. What was the net force? ...
ALL Newtons Second Law
... tension in each segment? Is it larger or smaller than from A? Why does that make sense? ...
... tension in each segment? Is it larger or smaller than from A? Why does that make sense? ...
Mixed quantum-classical dynamics on the exact time
... Another important implication of imposing the PNC is that the diagonal of the N-body nuclear density matrix of the complete system is equal to |χ (R, t)|2 . The stationary variations [21] of the quantum mechanical action1 w.r.t. R (r, t) and χ (R, t) lead to the derivation of the equations of motio ...
... Another important implication of imposing the PNC is that the diagonal of the N-body nuclear density matrix of the complete system is equal to |χ (R, t)|2 . The stationary variations [21] of the quantum mechanical action1 w.r.t. R (r, t) and χ (R, t) lead to the derivation of the equations of motio ...
Titles and Abstracts
... Abstract:Various nucleon-pair approximations of the nuclear shell model have been developed in the last sixty years. Important examples of nucleon-pair approximations include the seniority scheme or quasispin scheme [1,2], the broken pair approximation [3], the Ginocchio model [4]. There have been m ...
... Abstract:Various nucleon-pair approximations of the nuclear shell model have been developed in the last sixty years. Important examples of nucleon-pair approximations include the seniority scheme or quasispin scheme [1,2], the broken pair approximation [3], the Ginocchio model [4]. There have been m ...
Class Notes
... Experiments done by Robert Hooke reveal that for relatively small displacements, the force Fapplied required to stretch or compress a spring is directly proportional to the displacement Δx. That is, Hooke’s Law for the restoring force on an ideal spring can be expressed as: ...
... Experiments done by Robert Hooke reveal that for relatively small displacements, the force Fapplied required to stretch or compress a spring is directly proportional to the displacement Δx. That is, Hooke’s Law for the restoring force on an ideal spring can be expressed as: ...
Review - Mr MAC`s Physics
... Arguably the greatest scientific genius ever. Came up with 3 Laws of Motion to explain the observations and analyses of Galileo and Johannes Kepler. Discovered that white light was composed of many colors all mixed together. Invented new mathematical techniques such as calculus and binomial expansio ...
... Arguably the greatest scientific genius ever. Came up with 3 Laws of Motion to explain the observations and analyses of Galileo and Johannes Kepler. Discovered that white light was composed of many colors all mixed together. Invented new mathematical techniques such as calculus and binomial expansio ...
1. QUARK MODEL
... qq ′ bound states of quarks q and antiquarks q ′ (the flavors of q and q ′ may be different). If the orbital angular momentum of the qq ′ state is ℓ, then the parity P is (−1)ℓ+1 . The meson spin J is given by the usual relation |ℓ − s| ≤ J ≤ |ℓ + s|, where s is 0 (antiparallel quark spins) or 1 (pa ...
... qq ′ bound states of quarks q and antiquarks q ′ (the flavors of q and q ′ may be different). If the orbital angular momentum of the qq ′ state is ℓ, then the parity P is (−1)ℓ+1 . The meson spin J is given by the usual relation |ℓ − s| ≤ J ≤ |ℓ + s|, where s is 0 (antiparallel quark spins) or 1 (pa ...
Chapter 4
... point in the same direction. act on the same object. are always long-range forces. act on two different objects. ...
... point in the same direction. act on the same object. are always long-range forces. act on two different objects. ...
Vectors vs. Scalars
... The terms "center of mass" and "center of gravity" are used synonymously in a uniform gravity field to represent the unique point in an object or system that can be used to describe the system's response to external forces and torques. The concept of the center of mass is that of an average of the m ...
... The terms "center of mass" and "center of gravity" are used synonymously in a uniform gravity field to represent the unique point in an object or system that can be used to describe the system's response to external forces and torques. The concept of the center of mass is that of an average of the m ...
Lecture11-10
... An 85-kg lumberjack stands at one end of a 380-kg floating log, as shown in the figure. Both the log and the lumberjack are at rest initially. (a) If the lumberjack now trots toward the other end of the log with a speed of 2.7 m/s relative to the log, what is the lumberjack’s speed relative to the ...
... An 85-kg lumberjack stands at one end of a 380-kg floating log, as shown in the figure. Both the log and the lumberjack are at rest initially. (a) If the lumberjack now trots toward the other end of the log with a speed of 2.7 m/s relative to the log, what is the lumberjack’s speed relative to the ...
The Atomic Nucleus and Radioactivity Review questions pg. 657
... Why are alpha and beta rays deflected in opposite directions in a magnetic field? Why aren't gamma rays deflected? Ans. Alpha rays consist of positively charged helium nuclei. Beta rays consist of negatively charged electrons. Gamma rays are uncharged photons of light. A magnetic field will apply a ...
... Why are alpha and beta rays deflected in opposite directions in a magnetic field? Why aren't gamma rays deflected? Ans. Alpha rays consist of positively charged helium nuclei. Beta rays consist of negatively charged electrons. Gamma rays are uncharged photons of light. A magnetic field will apply a ...
Nuclear force
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.