![lab](http://s1.studyres.com/store/data/001455520_1-897d30e3747c28a17e63cb20ac8e63a8-300x300.png)
lab
... line and the masses from the cart and set it on the track so that the sail is just beyond 40 cm from the motion detector. (This is the lower limit of the detector’s range.) Mark the position of the lower end of the cart on the track in this position. Calculate the mechanical energy of the cart at th ...
... line and the masses from the cart and set it on the track so that the sail is just beyond 40 cm from the motion detector. (This is the lower limit of the detector’s range.) Mark the position of the lower end of the cart on the track in this position. Calculate the mechanical energy of the cart at th ...
Chapter 4 Forces and Newton’s Laws of Motion continued
... Newton’s 3rd law: Whatever magnitude of force the bat applies to the ball, the ball applies the same magnitude of force back (opposite direction) onto the bat. The bat is slowed by the force of the ball on the bat, and the ball is accelerated by the force of the bat A gun firing a bullet Newton’s 3r ...
... Newton’s 3rd law: Whatever magnitude of force the bat applies to the ball, the ball applies the same magnitude of force back (opposite direction) onto the bat. The bat is slowed by the force of the ball on the bat, and the ball is accelerated by the force of the bat A gun firing a bullet Newton’s 3r ...
13.11.2014 - Erwin Sitompul
... 1. A woman pulls a loaded sled, with a mass of 75 kg, along a horizontal surface at a constant speed. She is pulling with a rope at an angle of 42° with the horizontal and the coefficient of friction between the runners and the snow is 0.1. (a) What is the tension in the rope? (b) If the woman incre ...
... 1. A woman pulls a loaded sled, with a mass of 75 kg, along a horizontal surface at a constant speed. She is pulling with a rope at an angle of 42° with the horizontal and the coefficient of friction between the runners and the snow is 0.1. (a) What is the tension in the rope? (b) If the woman incre ...
Dynamics Powerpoint - HRSBSTAFF Home Page
... was flicked out? What force brought the penny down into the cup? 4. Would the penny move in the same way if sandpaper was used instead of the card? 5. Apply this learning to the reason we wear seat ...
... was flicked out? What force brought the penny down into the cup? 4. Would the penny move in the same way if sandpaper was used instead of the card? 5. Apply this learning to the reason we wear seat ...
Characteristics of Force
... design of airplanes, but this law is not in the same class as the basic laws of physics, and furt er stuay oT it will only mak~ it m2re and more complicate. study of how the coefficient c depends on the shape of the front of the airplane is, to put it mildly, frustrating. There just is no simple law ...
... design of airplanes, but this law is not in the same class as the basic laws of physics, and furt er stuay oT it will only mak~ it m2re and more complicate. study of how the coefficient c depends on the shape of the front of the airplane is, to put it mildly, frustrating. There just is no simple law ...
PHY 105 (Module 2) March 30 * April 13, 5 hours
... interaction between two objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force [motion then continues uniformly from that point on]. Forces only exist as a result of an interaction • When an object exerts a force (the action fo ...
... interaction between two objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force [motion then continues uniformly from that point on]. Forces only exist as a result of an interaction • When an object exerts a force (the action fo ...
Centripetal/Centrifugal Force
... by the centripetal force pulling the object towards the centre of rotation and therefore being pulled away from its trajectory. Centrifugal force is just the object trying to maintain its initial trajectory and therefore appearing to pull away from the centre of rotation. It is also important to not ...
... by the centripetal force pulling the object towards the centre of rotation and therefore being pulled away from its trajectory. Centrifugal force is just the object trying to maintain its initial trajectory and therefore appearing to pull away from the centre of rotation. It is also important to not ...
Static and Kinetic Friction
... Draw free body diagrams showing the forces acting on the block at each point listed below: a. while the block is being pulled but before the block starts to slide b. at the moment when the block just started to move c. as the block is moving at a constant velocity to the right. ...
... Draw free body diagrams showing the forces acting on the block at each point listed below: a. while the block is being pulled but before the block starts to slide b. at the moment when the block just started to move c. as the block is moving at a constant velocity to the right. ...
Section 2 Forces, Energy and Power
... Why does the trolley continue to move up the slope after it is released? Calculate the unbalanced force on the trolley as it moves up the slope. Calculate the rate at which the trolley loses speed as it moves up the slope. trolley eventually comes to rest then starts to move down the slope. Calculat ...
... Why does the trolley continue to move up the slope after it is released? Calculate the unbalanced force on the trolley as it moves up the slope. Calculate the rate at which the trolley loses speed as it moves up the slope. trolley eventually comes to rest then starts to move down the slope. Calculat ...
Our bodies are made of neutrons, protons and electrons
... Quarks only exist inside hadrons because they are confined by the strong (or color charge) force fields. Therefore, we cannot measure their mass by isolating them. Furthermore, the mass of a hadron gets contributions from quark kinetic energy and from potential energy due to strong interactions. For ...
... Quarks only exist inside hadrons because they are confined by the strong (or color charge) force fields. Therefore, we cannot measure their mass by isolating them. Furthermore, the mass of a hadron gets contributions from quark kinetic energy and from potential energy due to strong interactions. For ...
Homework #1: Work
... constant speed by a rope inclined at 20.0° above the horizontal. The sledge moves a distance of 20.0 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.500. (a) What is the tension in the rope? (b) How much work is done by the rope on the sledge? (c) W ...
... constant speed by a rope inclined at 20.0° above the horizontal. The sledge moves a distance of 20.0 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.500. (a) What is the tension in the rope? (b) How much work is done by the rope on the sledge? (c) W ...
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.