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... A ‘lighter’ pontoon will have less weight force than a ‘heavier’ pontoon. In this example, the pontoon has the same area but a greater weight when the people are on it, so the pontoon sinks deeper into the water because the pressure has increased. P= ...
... A ‘lighter’ pontoon will have less weight force than a ‘heavier’ pontoon. In this example, the pontoon has the same area but a greater weight when the people are on it, so the pontoon sinks deeper into the water because the pressure has increased. P= ...
Circular Motion PowerPoint
... • Acceleration is the rate at which an object’s velocity changes as the result of a force. • Centripetal acceleration is the acceleration of an object moving in a circle due to the centripetal force. ...
... • Acceleration is the rate at which an object’s velocity changes as the result of a force. • Centripetal acceleration is the acceleration of an object moving in a circle due to the centripetal force. ...
Ch. 12 Review Period: Name: ANSWER KEY Physical Science Date
... 32. Which of the universal forces is the strongest? Strong nuclear force 33. Which of the universal forces is most effective over long distances? Gravitational (acts across universe) 34. Which of the universal forces acts over the shortest distance? Weak nuclear force (only 10-18m) 35. What universa ...
... 32. Which of the universal forces is the strongest? Strong nuclear force 33. Which of the universal forces is most effective over long distances? Gravitational (acts across universe) 34. Which of the universal forces acts over the shortest distance? Weak nuclear force (only 10-18m) 35. What universa ...
Intermolecular Forces
... This is the London dispersion force. Since the actual interaction is between rapidly fluctuating dipoles, the distance dependence of the energy is 1/r6, as for two freely rotating, permanent dipoles (but without the kBT factor). The modern theory of dispersion forces, based on the work of Lifshitz, ...
... This is the London dispersion force. Since the actual interaction is between rapidly fluctuating dipoles, the distance dependence of the energy is 1/r6, as for two freely rotating, permanent dipoles (but without the kBT factor). The modern theory of dispersion forces, based on the work of Lifshitz, ...
Particle Physics Notes
... The energy spectrum of the electrons was expected to be a line spectrum. However the observed is a continuum spectrum, shown by the black solid curve. Some amount of the energy got lost! The observed continuous energy spectrum of the electrons appeared to violate E&P conservation laws, or which inf ...
... The energy spectrum of the electrons was expected to be a line spectrum. However the observed is a continuum spectrum, shown by the black solid curve. Some amount of the energy got lost! The observed continuous energy spectrum of the electrons appeared to violate E&P conservation laws, or which inf ...
PH1H_PNT_IsaacNewtonMe_V01x
... Isaac Newton and Me Teacher’s Notes This activity is of high interest and requires approximately one class period for data collection. To insure safety have students sit on the skateboards or scooter cars or if they are using roller skates or blades have another student jog along beside them as a c ...
... Isaac Newton and Me Teacher’s Notes This activity is of high interest and requires approximately one class period for data collection. To insure safety have students sit on the skateboards or scooter cars or if they are using roller skates or blades have another student jog along beside them as a c ...
The Centripetal Force Requirement
... will be greates wherever the normal force is greatest. As shown in the free-body diagram (question #5) and explained in question 7, the normal force is greatest at the bottom of the loop. At the llop bottom, the normal force must be greater than Fgrav, thus providing the heavy sensation. ...
... will be greates wherever the normal force is greatest. As shown in the free-body diagram (question #5) and explained in question 7, the normal force is greatest at the bottom of the loop. At the llop bottom, the normal force must be greater than Fgrav, thus providing the heavy sensation. ...
30 The Nucleus - mrphysicsportal.net
... that compose them with much greater precision. The chapter-opening photo shows trails of subatomic particles moving to the left in a bubble chamber. These charged particles are bent by a magnetic field. The direction of the curve shows their charge. The faster they are moving, the less the bend. Thu ...
... that compose them with much greater precision. The chapter-opening photo shows trails of subatomic particles moving to the left in a bubble chamber. These charged particles are bent by a magnetic field. The direction of the curve shows their charge. The faster they are moving, the less the bend. Thu ...
Elementary Particles and the Forces of Nature
... 3. At first it was thought that the nucleus of the atom was made up of electrons and different numbers of a positively charged particle called the proton, from the Greek word meaning “first,” because it was believed to be the fundamental unit from which matter was made. However, in 1932 a colleague ...
... 3. At first it was thought that the nucleus of the atom was made up of electrons and different numbers of a positively charged particle called the proton, from the Greek word meaning “first,” because it was believed to be the fundamental unit from which matter was made. However, in 1932 a colleague ...
Level 3 Physics (90521) 2011 Assessment Schedule
... At all points the tension force has to provide the centripetal force required to keep the bag moving in a circle and balance a component of the force of gravity. At the equilibrium point, the tension is greatest because the speed is greatest and the gravity component is the full gravity force. At th ...
... At all points the tension force has to provide the centripetal force required to keep the bag moving in a circle and balance a component of the force of gravity. At the equilibrium point, the tension is greatest because the speed is greatest and the gravity component is the full gravity force. At th ...
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.