Newtons` second law is customarily presented to beginning students
... J x (mv x ) sys Reviewing the Impulse, the only horizontal force involved is the force between the scoop and the water below. For the system of the rocket and water, this is an internal force and as such does not constitute an Impulse to the system. Thus, the systems horizontal impulse is ZERO an ...
... J x (mv x ) sys Reviewing the Impulse, the only horizontal force involved is the force between the scoop and the water below. For the system of the rocket and water, this is an internal force and as such does not constitute an Impulse to the system. Thus, the systems horizontal impulse is ZERO an ...
Lecture Notes
... Right hand rule: Curl the right hand so that the fingers point in the direction ...
... Right hand rule: Curl the right hand so that the fingers point in the direction ...
9/7/2006 ISP 209 - 2B - MSU Physics and Astronomy Department
... When A throws the ball he exerts a force on the ball (toward the right) and the ball exerts a force on him so he recoils (toward the left). ► Newton’s third law for the throw When B catches the ball he exerts a force on the ball (toward the left to stop it) and the ball exerts a force on him so he i ...
... When A throws the ball he exerts a force on the ball (toward the right) and the ball exerts a force on him so he recoils (toward the left). ► Newton’s third law for the throw When B catches the ball he exerts a force on the ball (toward the left to stop it) and the ball exerts a force on him so he i ...
Rotary Motion
... plane. When Δωα is small, vectors α, αΔt, and Δωα are all perpendicular to Δωs and Δωs’. ...
... plane. When Δωα is small, vectors α, αΔt, and Δωα are all perpendicular to Δωs and Δωs’. ...
lecture ch7-8-Circles
... the erector spinalis muscle in the back. Consider the model of a person bending forward to lift a 200-N object. The spine and upper body are represented as a uniform horizontal rod of weight 350 N, pivoted at the base of the spine. The erector spinalis muscle, attached at a point two-thirds of the w ...
... the erector spinalis muscle in the back. Consider the model of a person bending forward to lift a 200-N object. The spine and upper body are represented as a uniform horizontal rod of weight 350 N, pivoted at the base of the spine. The erector spinalis muscle, attached at a point two-thirds of the w ...
Simple Harmonic Motion
... pendulum is a particular kind of repetitive or periodic motion called simple harmonic motion, or SHM1 . The position of the oscillating object varies sinusoidally with time. Many objects oscillate back and forth. The motion of a child on a swing can be approximated to be sinusoidal and can therefore ...
... pendulum is a particular kind of repetitive or periodic motion called simple harmonic motion, or SHM1 . The position of the oscillating object varies sinusoidally with time. Many objects oscillate back and forth. The motion of a child on a swing can be approximated to be sinusoidal and can therefore ...
Angular Momentum (AIS)
... • The angular acceleration, α, must be the same for both wheels. Also, the total angle turned through must be the same. • But, when moving with angular velocity ω, the particles of wheel B are moving faster than the particles of wheel A. • Therefore, B possesses more kinetic energy than wheel A. • M ...
... • The angular acceleration, α, must be the same for both wheels. Also, the total angle turned through must be the same. • But, when moving with angular velocity ω, the particles of wheel B are moving faster than the particles of wheel A. • Therefore, B possesses more kinetic energy than wheel A. • M ...
Integrated Science Concepts COS 2010 2011
... Friction and normal forces are introduced conceptually at this level. Friction is a force between two surfaces that opposes sliding. Equations of static and kinetic friction will be introduced. A normal force exists between two solid objects when their surfaces are pressed together due to other forc ...
... Friction and normal forces are introduced conceptually at this level. Friction is a force between two surfaces that opposes sliding. Equations of static and kinetic friction will be introduced. A normal force exists between two solid objects when their surfaces are pressed together due to other forc ...
4 Newton’s Second Law Experiment 4.1
... 9. Using the ruler permanently affixed to the air track, record the locations of X0 , X1 and X2 in your spreadsheet and assign a reasonable uncertainty to these positions ( X). It is very important that your glider always starts from the same location X0 and that the two photogates are not moved. If ...
... 9. Using the ruler permanently affixed to the air track, record the locations of X0 , X1 and X2 in your spreadsheet and assign a reasonable uncertainty to these positions ( X). It is very important that your glider always starts from the same location X0 and that the two photogates are not moved. If ...
normal and active - FirstLight Astro
... 1. Many galaxies were discovered in the 1700’s by a man whose name is still associated with many of them. Who was he? 2. Which type of galaxy can be spherical to flat? 3. Which type can be loosely wound to tightly wound? 4. Which type is filled with older stars and little gas? 5. Which type has star ...
... 1. Many galaxies were discovered in the 1700’s by a man whose name is still associated with many of them. Who was he? 2. Which type of galaxy can be spherical to flat? 3. Which type can be loosely wound to tightly wound? 4. Which type is filled with older stars and little gas? 5. Which type has star ...
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.