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. ...
DOC - People Server at UNCW
... In this lab we will be studying the moment of inertia of two rotating disks about a fixed shaft. From the Parallel Axis Theorem we know that the moment of inertia of a body rotating at a distance R from the center of mass of the body is given by I I CM MR 2 , where M is the total mass of the obj ...
... In this lab we will be studying the moment of inertia of two rotating disks about a fixed shaft. From the Parallel Axis Theorem we know that the moment of inertia of a body rotating at a distance R from the center of mass of the body is given by I I CM MR 2 , where M is the total mass of the obj ...
centripetal force. Section 1 Circular Motion
... Centripetal Acceleration, continued • You have seen that centripetal acceleration results from a change in direction. • In circular motion, an acceleration due to a change in speed is called tangential acceleration. • To understand the difference between centripetal and tangential acceleration, cons ...
... Centripetal Acceleration, continued • You have seen that centripetal acceleration results from a change in direction. • In circular motion, an acceleration due to a change in speed is called tangential acceleration. • To understand the difference between centripetal and tangential acceleration, cons ...
abstracts_2071
... In fact, there is no time dependence on either side of the Gauss Law, equation [1]. Existence doesn’t depend on time. Either something exists or it doesn’t. However, this lack of time dependence also implies that the equation is incomplete by itself, because it says nothing about motion. We requir ...
... In fact, there is no time dependence on either side of the Gauss Law, equation [1]. Existence doesn’t depend on time. Either something exists or it doesn’t. However, this lack of time dependence also implies that the equation is incomplete by itself, because it says nothing about motion. We requir ...
Dynamics: Newton`s Laws
... space, you are weightless, but your mass is still unchanged. You still have inertia in space! In deep space, an astronaut would have a hard time “juggling” 1000 kg lead bricks. Yes, they’d be “weightless”, floating around the cabin, but F=ma, their large mass means that when you push them, they bare ...
... space, you are weightless, but your mass is still unchanged. You still have inertia in space! In deep space, an astronaut would have a hard time “juggling” 1000 kg lead bricks. Yes, they’d be “weightless”, floating around the cabin, but F=ma, their large mass means that when you push them, they bare ...
here - science
... a) The faster an object moves through a fluid the greater the frictional force that acts on it. b) An object falling through a fluid will initially accelerate due to the force of gravity. Eventually the resultant force will be zero and the object will move at its terminal velocity (steady speed) c) ...
... a) The faster an object moves through a fluid the greater the frictional force that acts on it. b) An object falling through a fluid will initially accelerate due to the force of gravity. Eventually the resultant force will be zero and the object will move at its terminal velocity (steady speed) c) ...
What is angular momentum?
... is no net torque (the forces are internal)so L is a constant but the moment of inertia changes and since L = Iω as I decreases ω increases. So if I decreases by a factor of 2 then ω increases by a factor of 2. The kinetic energy is = Iω2 so if I decreases the kinetic energy increases by the amount o ...
... is no net torque (the forces are internal)so L is a constant but the moment of inertia changes and since L = Iω as I decreases ω increases. So if I decreases by a factor of 2 then ω increases by a factor of 2. The kinetic energy is = Iω2 so if I decreases the kinetic energy increases by the amount o ...
Physics Toolkit - Effingham County Schools
... use a 0.341 m long wrench, and you exert a maximum force of 189 N. What is the smallest angle, with respect to the wrench, at which you can exert this force and still tighten the bolt? ...
... use a 0.341 m long wrench, and you exert a maximum force of 189 N. What is the smallest angle, with respect to the wrench, at which you can exert this force and still tighten the bolt? ...
Student Exploration Sheet: Growing Plants
... what was the average velocity of the rock? _________________________________ B. In general, how do you find the average velocity of any object falling in a vacuum? (Assume you know the final velocity.) _____________________________________ 3. Calculate: Distance, average velocity, and time are relat ...
... what was the average velocity of the rock? _________________________________ B. In general, how do you find the average velocity of any object falling in a vacuum? (Assume you know the final velocity.) _____________________________________ 3. Calculate: Distance, average velocity, and time are relat ...
CHAPTER 4: Dynamics: Newton`s Laws of Motion
... (III) A person jumps from the roof of a house 3.9-m high. When he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.70 m. If the mass of his torso (excluding legs) is 42 kg, find (a) his velocity just before his feet strike the ground, and ( ...
... (III) A person jumps from the roof of a house 3.9-m high. When he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.70 m. If the mass of his torso (excluding legs) is 42 kg, find (a) his velocity just before his feet strike the ground, and ( ...
6.0 - Introduction 6.1 - Sample problem: a mass on
... 6.0 - Introduction Now, you will get some additional practice applying Newton’s laws. More specifically, you will use them in situations where multiple forces are acting on a single object. If the application of multiple forces results in a net force acting on an object, it accelerates. On the other ...
... 6.0 - Introduction Now, you will get some additional practice applying Newton’s laws. More specifically, you will use them in situations where multiple forces are acting on a single object. If the application of multiple forces results in a net force acting on an object, it accelerates. On the other ...
Chap04
... or water, the fluid exerts a drag force on the moving object in the direction opposite to its motion. A drag force is the force exerted by a fluid on the object moving through the fluid. This force is dependent on the motion of the object, the properties of the object, and the properties of the flui ...
... or water, the fluid exerts a drag force on the moving object in the direction opposite to its motion. A drag force is the force exerted by a fluid on the object moving through the fluid. This force is dependent on the motion of the object, the properties of the object, and the properties of the flui ...
3.2 The Momentum Principles
... and use has been made of the fact that dm / dt = 0 . Thus Newton’s second law, F = ma , can be rewritten as ...
... and use has been made of the fact that dm / dt = 0 . Thus Newton’s second law, F = ma , can be rewritten as ...
Modified Newtonian dynamics
In physics, modified Newtonian dynamics (MOND) is a theory that proposes a modification of Newton's laws to account for observed properties of galaxies. Created in 1983 by Israeli physicist Mordehai Milgrom, the theory's original motivation was to explain the fact that the velocities of stars in galaxies were observed to be larger than expected based on Newtonian mechanics. Milgrom noted that this discrepancy could be resolved if the gravitational force experienced by a star in the outer regions of a galaxy was proportional to the square of its centripetal acceleration (as opposed to the centripetal acceleration itself, as in Newton's Second Law), or alternatively if gravitational force came to vary inversely with radius (as opposed to the inverse square of the radius, as in Newton's Law of Gravity). In MOND, violation of Newton's Laws occurs at extremely small accelerations, characteristic of galaxies yet far below anything typically encountered in the Solar System or on Earth.MOND is an example of a class of theories known as modified gravity, and is an alternative to the hypothesis that the dynamics of galaxies are determined by massive, invisible dark matter halos. Since Milgrom's original proposal, MOND has successfully predicted a variety of galactic phenomena that are difficult to understand from a dark matter perspective. However, MOND and its generalisations do not adequately account for observed properties of galaxy clusters, and no satisfactory cosmological model has been constructed from the theory.