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Forces 2 - Hicksville Public Schools
... What is the force of friction acting on the block? 2. A 12 kg lawnmower requires 30 N of force to push it with constant velocity. What is the force of friction between the lawnmower and the lawn? 3. A 2.0 kilogram wooden object rests a on a wooden surface. What is the maximum force that you can push ...
... What is the force of friction acting on the block? 2. A 12 kg lawnmower requires 30 N of force to push it with constant velocity. What is the force of friction between the lawnmower and the lawn? 3. A 2.0 kilogram wooden object rests a on a wooden surface. What is the maximum force that you can push ...
Wednesday, July 1, 2015
... This potential energy is given to an object by the gravitational field in the system of Earth by virtue of the object’s height from an arbitrary zero level When an object is falling, the gravitational force, mg, performs the work on the object, increasing the object’s kinetic energy. So the potentia ...
... This potential energy is given to an object by the gravitational field in the system of Earth by virtue of the object’s height from an arbitrary zero level When an object is falling, the gravitational force, mg, performs the work on the object, increasing the object’s kinetic energy. So the potentia ...
Nuclear physics
... nuclear radius. The Alpha particle KE “becomes” electrostatic PE at it's closest approach to the nucleus, just before the Alpha particle rebounds back. ...
... nuclear radius. The Alpha particle KE “becomes” electrostatic PE at it's closest approach to the nucleus, just before the Alpha particle rebounds back. ...
Electric Field Lines
... other charge. Use Coulomb’s law to find the force from each individual charge, and make a free body diagram! ...
... other charge. Use Coulomb’s law to find the force from each individual charge, and make a free body diagram! ...
ppt Review from Kahoot
... Tip: Cant use kinematics with springs because the spring force (and acceleration) is not constant. Use conservation of energy (Ei+WNC=EF). Work done by friction removes mech E ...
... Tip: Cant use kinematics with springs because the spring force (and acceleration) is not constant. Use conservation of energy (Ei+WNC=EF). Work done by friction removes mech E ...
Constituent Quark Models
... Explain/predict magnetic moments of mesons and baryons Explain/predict scattering cross sections The MIT Bag Model predicts fairly accurate masses of the particles Explains color confinement Helps predict heavy quark spectrum ...
... Explain/predict magnetic moments of mesons and baryons Explain/predict scattering cross sections The MIT Bag Model predicts fairly accurate masses of the particles Explains color confinement Helps predict heavy quark spectrum ...
PPT - LSU Physics
... If you fire a projectile upward, there is a certain minimum initial speed that will cause it to move upward forever, theoretically coming to rest only at infinity. This minimum initial speed is called the (Earth) escape speed. Consider a projectile of mass m, leaving the surface of a planet (mass M, ...
... If you fire a projectile upward, there is a certain minimum initial speed that will cause it to move upward forever, theoretically coming to rest only at infinity. This minimum initial speed is called the (Earth) escape speed. Consider a projectile of mass m, leaving the surface of a planet (mass M, ...
L9.ppt
... between it and the dash, otherwise it moves in a straight line • The car actually slides out from under the object • the apparent outward force (as seen by someone in the car) is called the centrifugal force • it is NOT A REAL force! It is a fictitious force • an object will not move in a circle unt ...
... between it and the dash, otherwise it moves in a straight line • The car actually slides out from under the object • the apparent outward force (as seen by someone in the car) is called the centrifugal force • it is NOT A REAL force! It is a fictitious force • an object will not move in a circle unt ...
Chapter Summary
... The standard method of solving force problems involves splitting the forces into components, applying Newton’s second law once for each direction, and combining the results. However, it should be kept in mind that some problems lend themselves to being solved with whole vectors. The steps in the sta ...
... The standard method of solving force problems involves splitting the forces into components, applying Newton’s second law once for each direction, and combining the results. However, it should be kept in mind that some problems lend themselves to being solved with whole vectors. The steps in the sta ...
Forces Simulation phet
... Summary Newton’s Second Law states “The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.” Explain how your observations relate to the underlin ...
... Summary Newton’s Second Law states “The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.” Explain how your observations relate to the underlin ...
Forces in 1D Phet Lab
... 1. As a small force was applied to the cabinet, the cabinet didn’t move because the magnitude of the force of friction was larger than / smaller than / equal to the applied force. BE CAREFUL HERE ...
... 1. As a small force was applied to the cabinet, the cabinet didn’t move because the magnitude of the force of friction was larger than / smaller than / equal to the applied force. BE CAREFUL HERE ...
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.