Unit 6 MOMENTUM AND ITS Conservation 1
... required to bring it to rest. C.The greater the velocity of the object, the more force is necessary to bring it to rest. D.Mass and velocity, are combined into a single quantity that we call momentum. E.Momentum is a scalar quantity and its magnitude is the magnitude of the velocity of the object. ...
... required to bring it to rest. C.The greater the velocity of the object, the more force is necessary to bring it to rest. D.Mass and velocity, are combined into a single quantity that we call momentum. E.Momentum is a scalar quantity and its magnitude is the magnitude of the velocity of the object. ...
Experiment 7 Simple Harmonic Motion Reading:
... Hooke’s law states that the force resisting the extension of the spring is proportional to the deviation of the spring from its equilibrium position. That is, F = - k x, where x = 0 is defined by the equilibrium position of the spring. If we gently add a mass to the spring, the spring will stretch t ...
... Hooke’s law states that the force resisting the extension of the spring is proportional to the deviation of the spring from its equilibrium position. That is, F = - k x, where x = 0 is defined by the equilibrium position of the spring. If we gently add a mass to the spring, the spring will stretch t ...
Document
... particles make one revolution in the same amount of time. i.e., they all have the same angular speed. Moment of Inertia: A rigid body rotating about a fixed axis AB, a particle 'p' of mass is rotating in a circle of radius 'r'. Law of conservation of angular momentum: The total angular momentum of ...
... particles make one revolution in the same amount of time. i.e., they all have the same angular speed. Moment of Inertia: A rigid body rotating about a fixed axis AB, a particle 'p' of mass is rotating in a circle of radius 'r'. Law of conservation of angular momentum: The total angular momentum of ...
Atomic masses
... Alpha particles: carry two fundamental units of positive charge and have the same mass as helium atoms. They have +2 charges. Beta particles: are negatively charged particles produced by changes occuring within the nuclei of radioactive atoms and have the same properties as electrons. Gama rays are ...
... Alpha particles: carry two fundamental units of positive charge and have the same mass as helium atoms. They have +2 charges. Beta particles: are negatively charged particles produced by changes occuring within the nuclei of radioactive atoms and have the same properties as electrons. Gama rays are ...
The Law of Conservation of Momentum
... Elastic collisions conserve both momentum and kinetic energy. This is a slight change on the conservation of energy we had in the last section where energy could have different initial and final forms. Even inelastic collisions conserve energy; the energy gets converted into forms other than kinetic ...
... Elastic collisions conserve both momentum and kinetic energy. This is a slight change on the conservation of energy we had in the last section where energy could have different initial and final forms. Even inelastic collisions conserve energy; the energy gets converted into forms other than kinetic ...
Second Semester Final Exam Preparation 2012
... first shot. To get the disc to go far, it needs to leave your hand traveling very fast. What can you do to make the disc leave your hand going as fast as possible? 5. Nerf balls are intended to be safer to use than another ball with the same mass. What is it about Nerf balls that make them less like ...
... first shot. To get the disc to go far, it needs to leave your hand traveling very fast. What can you do to make the disc leave your hand going as fast as possible? 5. Nerf balls are intended to be safer to use than another ball with the same mass. What is it about Nerf balls that make them less like ...
Answers
... A positive test charge is placed 1/3 of the distance between two equally charged positive objects. The force on the test charge exerted by the near object is F. Determine the force exerted by the the further object on the test charge, and hence the resultant force on the test charge. Force on q+ fro ...
... A positive test charge is placed 1/3 of the distance between two equally charged positive objects. The force on the test charge exerted by the near object is F. Determine the force exerted by the the further object on the test charge, and hence the resultant force on the test charge. Force on q+ fro ...
Projectile and Circular Motion Review Packet
... projectile - any object that moves through the air or through space, acted on only by gravity (and air resistance, if any) ...
... projectile - any object that moves through the air or through space, acted on only by gravity (and air resistance, if any) ...
Chapter 21 = Electric Charge Lecture
... General solution with damping • If we do NOT assume small damping then the resonant freq is shifted DOWN • From the “natural undamped resonant freq: • n = (/I) • Note the frequency is always shifted DOWN ...
... General solution with damping • If we do NOT assume small damping then the resonant freq is shifted DOWN • From the “natural undamped resonant freq: • n = (/I) • Note the frequency is always shifted DOWN ...
Chapter One: Introduction
... 19. Determine the resultant electric field strength at the centre of an equilateral triangle if three point charges of the same magnitude and sign are situated at the vertices. What would be the field strength if one of the charges were opposite in sign to the others? 20. Charged latex spheres which ...
... 19. Determine the resultant electric field strength at the centre of an equilateral triangle if three point charges of the same magnitude and sign are situated at the vertices. What would be the field strength if one of the charges were opposite in sign to the others? 20. Charged latex spheres which ...
Chapter 5
... If a satellite of mass m moves in a circular orbit around a planet of mass M, we can set the centripetal force equal to the gravitational force and solve for the speed of the satellite orbiting at a particular distance r: ...
... If a satellite of mass m moves in a circular orbit around a planet of mass M, we can set the centripetal force equal to the gravitational force and solve for the speed of the satellite orbiting at a particular distance r: ...
The Science of “Punkin` Chunkin`”
... At first glance, slinging a pumpkin through the air to see whose goes the farthest seems like nothing more than a little autumn enjoyment. Like so many games, however, more than a little science lies behind the fun. ...
... At first glance, slinging a pumpkin through the air to see whose goes the farthest seems like nothing more than a little autumn enjoyment. Like so many games, however, more than a little science lies behind the fun. ...
NewtonPart2 - University of Colorado Boulder
... professional engineers!). My advice: If you have choice, NEVER do calculations in non-inertial frames. Avoid using fictitious forces. Consider the rock on the string again (still no gravity). If the string breaks, then there is no longer any force on the rock and it will move in a straight line with ...
... professional engineers!). My advice: If you have choice, NEVER do calculations in non-inertial frames. Avoid using fictitious forces. Consider the rock on the string again (still no gravity). If the string breaks, then there is no longer any force on the rock and it will move in a straight line with ...
Mass versus weight
In everyday usage, the mass of an object is often referred to as its weight though these are in fact different concepts and quantities. In scientific contexts, mass refers loosely to the amount of ""matter"" in an object (though ""matter"" may be difficult to define), whereas weight refers to the force experienced by an object due to gravity. In other words, an object with a mass of 1.0 kilogram will weigh approximately 9.81 newtons (newton is the unit of force, while kilogram is the unit of mass) on the surface of the Earth (its mass multiplied by the gravitational field strength). Its weight will be less on Mars (where gravity is weaker), more on Saturn, and negligible in space when far from any significant source of gravity, but it will always have the same mass.Objects on the surface of the Earth have weight, although sometimes this weight is difficult to measure. An example is a small object floating in a pool of water (or even on a dish of water), which does not appear to have weight since it is buoyed by the water; but it is found to have its usual weight when it is added to water in a container which is entirely supported by and weighed on a scale. Thus, the ""weightless object"" floating in water actually transfers its weight to the bottom of the container (where the pressure increases). Similarly, a balloon has mass but may appear to have no weight or even negative weight, due to buoyancy in air. However the weight of the balloon and the gas inside it has merely been transferred to a large area of the Earth's surface, making the weight difficult to measure. The weight of a flying airplane is similarly distributed to the ground, but does not disappear. If the airplane is in level flight, the same weight-force is distributed to the surface of the Earth as when the plane was on the runway, but spread over a larger area.A better scientific definition of mass is its description as being composed of inertia, which basically is the resistance of an object being accelerated when acted on by an external force. Gravitational ""weight"" is the force created when a mass is acted upon by a gravitational field and the object is not allowed to free-fall, but is supported or retarded by a mechanical force, such as the surface of a planet. Such a force constitutes weight. This force can be added to by any other kind of force.For example, in the photograph, the girl's weight, subtracted from the tension in the chain (respectively the support force of the seat), yields the necessary centripetal force to keep her swinging in an arc. If one stands behind her at the bottom of her arc and abruptly stops her, the impetus (""bump"" or stopping-force) one experiences is due to acting against her inertia, and would be the same even if gravity were suddenly switched off.While the weight of an object varies in proportion to the strength of the gravitational field, its mass is constant (ignoring relativistic effects) as long as no energy or matter is added to the object. Accordingly, for an astronaut on a spacewalk in orbit (a free-fall), no effort is required to hold a communications satellite in front of him; it is ""weightless"". However, since objects in orbit retain their mass and inertia, an astronaut must exert ten times as much force to accelerate a 10‑ton satellite at the same rate as one with a mass of only 1 ton.On Earth, a swing set can demonstrate this relationship between force, mass, and acceleration. If one were to stand behind a large adult sitting stationary on a swing and give him a strong push, the adult would temporarily accelerate to a quite low speed, and then swing only a short distance before beginning to swing in the opposite direction. Applying the same impetus to a small child would produce a much greater speed.