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work, energy and power
work, energy and power

U =mgh - RIT
U =mgh - RIT

... 6. A computer with DataStudio installed on it. Introduction: One of the most fundamental ideas in physics is that all energy is conserved. You can waste energy, you can lose energy (we will be investigating this in our next workshop), but cannot destroy it. You also cannot create it. All the energy ...
AP Physics B:
AP Physics B:

Chapter 7
Chapter 7

... Could a roller blade and a 1-ton truck ever have the same momentum? Yes – if the velocity of the skate was substantially more than the truck since the mass is so much less. ...
Lecture 20
Lecture 20

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Work and kinetic energy

PHYS 1443 – Section 501 Lecture #1
PHYS 1443 – Section 501 Lecture #1

... Consider an isolated system with two particles that do not have any external forces exerting on it. What is the impact of Newton’s 3rd Law? If particle#1 exerts force on particle #2, there must be another force that the particle #2 exerts on #1 as the reaction force. Both the forces are internal for ...
Newton`s Laws, Numbers 1 and 2
Newton`s Laws, Numbers 1 and 2

... 13. Megan, a ballet dancer, has a mass of 45.0 kg. A). What is Megan’s weight on Earth? B). What is Megan’s mass on Jupiter, where gravity is 25.0 m/s2? C). What is Megan’s weight on Jupiter? ...
Unit 4 study guide
Unit 4 study guide

... 8. A 0.50 kg lab cart on a frictionless, horizontal surface is attached to a spring. The spring is unstretched at position x = 0. The cart is released from rest at the position x = +0.25 m at time t=0. a. Sketch a graph of the kinetic energy and also a graph of the potential energy of the cart as a ...
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Energy and matter

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newton`s 3 laws

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Work, Energy, and Power Practice key

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Physical Science Notes ppt.SBP1

... direction of greater force since the force is unbalanced. Unbalanced forces are not equal and do not cancel each other out, so cannot result in a net force of zero. ...
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Force, Acceleration, Momentum

From last time… - High Energy Physics
From last time… - High Energy Physics

Work, Energy & Power
Work, Energy & Power

... Just as there is conservation of mass in the universe. There is also a conservation of energy.  Energy is neither created or destroyed  Energy is transferred from one object to another or changes from one form to another  The change in an objects kinetic energy is the result of the net work done ...
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Work and Energy

KINEMATICS PROBLEMS: NEWTON`S LAWS
KINEMATICS PROBLEMS: NEWTON`S LAWS

... 14. A tennis player strikes a tennis ball of mass 56.7 g when it is at the top of the toss, accelerating it to 68.0 m/s in a distance of 0.0250 m. What is the average force the player exerts on the ball? Ignore any other forces acting on the ball. ...
Introduction to Simple Harmonic Motion
Introduction to Simple Harmonic Motion

... Assume the object is initially pulled to a distance A and released from rest As the object moves toward the equilibrium position, F and a decrease, but v increases At x = 0, F and a are zero, but v is a maximum The object’s momentum causes it to overshoot the equilibrium position ...
2008 - thephysicsteacher.ie
2008 - thephysicsteacher.ie

Motion and Forces Practice Test
Motion and Forces Practice Test

CP-S-HW-ch-5-detailed
CP-S-HW-ch-5-detailed

... constant or was essentially zero during the lifting process), the work done by either Mark and David equals the increase in the gravitational potential energy of the block as it is lifted from the ground to the truck bed. Because they lift identical blocks through the same vertical distance, they do ...
Notes for lecture 7
Notes for lecture 7

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Relativistic mechanics

In physics, relativistic mechanics refers to mechanics compatible with special relativity (SR) and general relativity (GR). It provides a non-quantum mechanical description of a system of particles, or of a fluid, in cases where the velocities of moving objects are comparable to the speed of light c. As a result, classical mechanics is extended correctly to particles traveling at high velocities and energies, and provides a consistent inclusion of electromagnetism with the mechanics of particles. This was not possible in Galilean relativity, where it would be permitted for particles and light to travel at any speed, including faster than light. The foundations of relativistic mechanics are the postulates of special relativity and general relativity. The unification of SR with quantum mechanics is relativistic quantum mechanics, while attempts for that of GR is quantum gravity, an unsolved problem in physics.As with classical mechanics, the subject can be divided into ""kinematics""; the description of motion by specifying positions, velocities and accelerations, and ""dynamics""; a full description by considering energies, momenta, and angular momenta and their conservation laws, and forces acting on particles or exerted by particles. There is however a subtlety; what appears to be ""moving"" and what is ""at rest""—which is termed by ""statics"" in classical mechanics—depends on the relative motion of observers who measure in frames of reference.Although some definitions and concepts from classical mechanics do carry over to SR, such as force as the time derivative of momentum (Newton's second law), the work done by a particle as the line integral of force exerted on the particle along a path, and power as the time derivative of work done, there are a number of significant modifications to the remaining definitions and formulae. SR states that motion is relative and the laws of physics are the same for all experimenters irrespective of their inertial reference frames. In addition to modifying notions of space and time, SR forces one to reconsider the concepts of mass, momentum, and energy all of which are important constructs in Newtonian mechanics. SR shows that these concepts are all different aspects of the same physical quantity in much the same way that it shows space and time to be interrelated. Consequently, another modification is the concept of the center of mass of a system, which is straightforward to define in classical mechanics but much less obvious in relativity - see relativistic center of mass for details.The equations become more complicated in the more familiar three-dimensional vector calculus formalism, due to the nonlinearity in the Lorentz factor, which accurately accounts for relativistic velocity dependence and the speed limit of all particles and fields. However, they have a simpler and elegant form in four-dimensional spacetime, which includes flat Minkowski space (SR) and curved spacetime (GR), because three-dimensional vectors derived from space and scalars derived from time can be collected into four vectors, or four-dimensional tensors. However, the six component angular momentum tensor is sometimes called a bivector because in the 3D viewpoint it is two vectors (one of these, the conventional angular momentum, being an axial vector).
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