8.012 Physics I: Classical Mechanics
... A small planet of mass m is in a circular orbit of radius r around a star of mass M and radius R in otherwise empty space (assume M >> m so the star is stationary). (a) [10 pts] Determine the potential energy U(r), the kinetic energy K(r) and the total mechanical energy E(r) of the planet in terms o ...
... A small planet of mass m is in a circular orbit of radius r around a star of mass M and radius R in otherwise empty space (assume M >> m so the star is stationary). (a) [10 pts] Determine the potential energy U(r), the kinetic energy K(r) and the total mechanical energy E(r) of the planet in terms o ...
conservation of energy
... The description of the motion of many objects, however, often involves a combination of kinetic and potential energy as well as different kinds of potential energy! We call the sum of these energies at work on an object: mechanical energy ...
... The description of the motion of many objects, however, often involves a combination of kinetic and potential energy as well as different kinds of potential energy! We call the sum of these energies at work on an object: mechanical energy ...
Latent Heat of Vaporization and Speci c Heat - Physlab
... how is this energy shared? James Clerk Maxwell solved this problem for a large number of molecules. He said that energy is equally divided in all the directions a molecule is free to move. The average energy, when the number of molecules is large, per molecule is 12 kB T for each independent degree ...
... how is this energy shared? James Clerk Maxwell solved this problem for a large number of molecules. He said that energy is equally divided in all the directions a molecule is free to move. The average energy, when the number of molecules is large, per molecule is 12 kB T for each independent degree ...
1 — Work, Energy, and Power - Carroll`s Cave of Knowledge
... 4 — Conservation of Energy: Friction If friction is involved, energy is still conserved, but mechanical energy is not necessarily conserved. Some of the mechanical energy can be converted to thermal energy through the work done against friction. Energy lost to friction is non-conservative. It is pat ...
... 4 — Conservation of Energy: Friction If friction is involved, energy is still conserved, but mechanical energy is not necessarily conserved. Some of the mechanical energy can be converted to thermal energy through the work done against friction. Energy lost to friction is non-conservative. It is pat ...
Momentum Changing the Momentum The force and the time interval
... car is involved in a 20 m/s (45 mi/h) collision with a concrete barrier. If the stopping time is 0.25 s, what is the force exerted by the seat beat and shoulder strap on the passenger? ...
... car is involved in a 20 m/s (45 mi/h) collision with a concrete barrier. If the stopping time is 0.25 s, what is the force exerted by the seat beat and shoulder strap on the passenger? ...
Notes on Energy
... Work W = Fd (in N-m). Since the units here are the same as for energy (above), it follows that “work” and “energy” are essentially the same. Specifically, we say that energy is the ability (or the capacity) to do work. Note: Energy and Work are scalars, i.e. they have no direction! In everyday term ...
... Work W = Fd (in N-m). Since the units here are the same as for energy (above), it follows that “work” and “energy” are essentially the same. Specifically, we say that energy is the ability (or the capacity) to do work. Note: Energy and Work are scalars, i.e. they have no direction! In everyday term ...
Potential Energy and Conservation of Energy
... 1. A force is conservative if the work it does on a particle moving between any two points is independent of the path taken by the particle ex) Fg is a conservative force because it is path independent (see p.4) 2. The work done by a conservative force on a particle moving through any closed path is ...
... 1. A force is conservative if the work it does on a particle moving between any two points is independent of the path taken by the particle ex) Fg is a conservative force because it is path independent (see p.4) 2. The work done by a conservative force on a particle moving through any closed path is ...
Review C: Work and Kinetic Energy
... Two critical points emerge. The first is that only change in energy has meaning. The initial or final energy is actually a meaningless concept. What we need to count is the change of energy and so we search for physical laws that determine how each form of energy changes. The second point is that we ...
... Two critical points emerge. The first is that only change in energy has meaning. The initial or final energy is actually a meaningless concept. What we need to count is the change of energy and so we search for physical laws that determine how each form of energy changes. The second point is that we ...
Does law of conservation of energy really hold good in
... simple harmonic motion without damping of two masses of a beam balance an anomaly is observed. The total energy calculated out at equilibrium position where the kinetic energy of both masses is maximum is greater than the energy spent in setting the system in simple harmonic motion which is contradi ...
... simple harmonic motion without damping of two masses of a beam balance an anomaly is observed. The total energy calculated out at equilibrium position where the kinetic energy of both masses is maximum is greater than the energy spent in setting the system in simple harmonic motion which is contradi ...
Work, Power, & Energy
... • In order to do work on an object, the force you exert must be in the same direction as the object’s motion. ...
... • In order to do work on an object, the force you exert must be in the same direction as the object’s motion. ...
1st Semester Final Exam Study Guide - Mr. Dudley
... How does kinetic energy differ from potential energy? A. Kinetic energy is energy of motion, but potential energy is stored energy. B. Kinetic energy can be measured, but potential energy cannot be measured. C. Kinetic energy is in every object, but some objects do not have potential energy. D. Kine ...
... How does kinetic energy differ from potential energy? A. Kinetic energy is energy of motion, but potential energy is stored energy. B. Kinetic energy can be measured, but potential energy cannot be measured. C. Kinetic energy is in every object, but some objects do not have potential energy. D. Kine ...
Topic 2.3_PowerPoint Presentation File
... ME sys before = PEe spring (no KE and GPE = zero) MEsys at a height 20 cm = KE ball + GPE ball(spring is no ...
... ME sys before = PEe spring (no KE and GPE = zero) MEsys at a height 20 cm = KE ball + GPE ball(spring is no ...
Revision
... Consider the head-on collision of an a particle with an isolated gold nucleus that is stationary initially. Explain whether or not the linear momentum of he system is conserved. Describe the energy change during the collision process. (Assume that no excitation of the gold nucleus occurs.) (03-IIB-1 ...
... Consider the head-on collision of an a particle with an isolated gold nucleus that is stationary initially. Explain whether or not the linear momentum of he system is conserved. Describe the energy change during the collision process. (Assume that no excitation of the gold nucleus occurs.) (03-IIB-1 ...
Conservation of Energy Workshop
... Example Problems Solution: The first step is to find the composition of the initial and final energies. In this case, the entire problem takes place horizontally and therefore the gravitational potential energy is constant at all times and can be ignored. The initial energy (when the bow is drawn a ...
... Example Problems Solution: The first step is to find the composition of the initial and final energies. In this case, the entire problem takes place horizontally and therefore the gravitational potential energy is constant at all times and can be ignored. The initial energy (when the bow is drawn a ...
Review C: Work and Kinetic Energy
... C.3 Work and Energy C.3.1 Work-Kinetic Energy Theorem There is a connection between the total work done on an object and the change of kinetic energy. Non-zero total work implies that the total force acting on the object is non-zero. Therefore the object will accelerate. When the total work done on ...
... C.3 Work and Energy C.3.1 Work-Kinetic Energy Theorem There is a connection between the total work done on an object and the change of kinetic energy. Non-zero total work implies that the total force acting on the object is non-zero. Therefore the object will accelerate. When the total work done on ...
Slides for Chapters 5, 6, 7, 8 and Review
... accelerates. The direction of acceleration is the same as the direction of the net force. The mass of the body times the acceleration vector of the body equals to the net force vector, i.e. ...
... accelerates. The direction of acceleration is the same as the direction of the net force. The mass of the body times the acceleration vector of the body equals to the net force vector, i.e. ...
1 - Learning While Doing
... What answer will satisfy him? He will need to know the distance in Kilometers and the direction. But if I ask what is the temperature of the object? Or how many people live there, I need only one number to get the full information. The distance to Bombay is not complete information without giving th ...
... What answer will satisfy him? He will need to know the distance in Kilometers and the direction. But if I ask what is the temperature of the object? Or how many people live there, I need only one number to get the full information. The distance to Bombay is not complete information without giving th ...
Notes #2 Chem 341
... _____________ _______ _______________ and from the enthalpy of reaction at some other temp. For an individual reactant or product: ......................................................... H = ..... For the entire reaction then: ...
... _____________ _______ _______________ and from the enthalpy of reaction at some other temp. For an individual reactant or product: ......................................................... H = ..... For the entire reaction then: ...
