
Over head 2
... the card to accelerate horizontally. • Why did this happen? The force was applied to the card only – Inertia kept the coin from moving. • Do you think it would be different if you pulled it slowly? It should go with the card everytime. ...
... the card to accelerate horizontally. • Why did this happen? The force was applied to the card only – Inertia kept the coin from moving. • Do you think it would be different if you pulled it slowly? It should go with the card everytime. ...
Force (or free-body) diagrams
... This is a free-body diagram of the Statue of Liberty. She is represented by a simple box. The forces acting on her are labeled with a magnitude and the arrow shows direction. Notice the surrounding objects are stripped away and the forces acting on the object are shown. ...
... This is a free-body diagram of the Statue of Liberty. She is represented by a simple box. The forces acting on her are labeled with a magnitude and the arrow shows direction. Notice the surrounding objects are stripped away and the forces acting on the object are shown. ...
Unit 2a Force and Motion Study Guide Label the following with the
... 6. When a roller coaster makes a sharp turn, you slide in the opposite direction of the turn because of __inertia___. 7. Newton’s first law of motion states that a. an object in motion remains in motion unless acted upon by an unbalanced force. b. an object in motion eventually comes to a stop. c. ...
... 6. When a roller coaster makes a sharp turn, you slide in the opposite direction of the turn because of __inertia___. 7. Newton’s first law of motion states that a. an object in motion remains in motion unless acted upon by an unbalanced force. b. an object in motion eventually comes to a stop. c. ...
F - Purdue Physics
... Whether an object of mass m is dropped straight down a height h or slid down an incline through a height h, the work done by the Earth on the object is mgh. Any object near the earth's surface has a potential energy associated with its height. This is an energy stored in the system (the Earth and th ...
... Whether an object of mass m is dropped straight down a height h or slid down an incline through a height h, the work done by the Earth on the object is mgh. Any object near the earth's surface has a potential energy associated with its height. This is an energy stored in the system (the Earth and th ...
Gravity
... an object in motion tends to stay in motion until a force is exerted on it. 3______________________This is the combining of two or more forces on an object. 4______________________When two forces go against each other but are not equal. 5______________________When two forces work against each other ...
... an object in motion tends to stay in motion until a force is exerted on it. 3______________________This is the combining of two or more forces on an object. 4______________________When two forces go against each other but are not equal. 5______________________When two forces work against each other ...
Chapter 7 Force ppt
... Section 3: An object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity, unless an unbalanced force acts upon it. ...
... Section 3: An object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity, unless an unbalanced force acts upon it. ...
Physics 100A Homework 5
... that the box will at some point "break loose" and start to accelerate down the board. The box begins to slide once the component of its weight parallel to the board, W|| , equals the maximum force of static friction. The box accelerates down the board after it begins to slide because the coefficient ...
... that the box will at some point "break loose" and start to accelerate down the board. The box begins to slide once the component of its weight parallel to the board, W|| , equals the maximum force of static friction. The box accelerates down the board after it begins to slide because the coefficient ...
True or False - Hauserphysics
... 15. Which of the following is not true about the car in # 14 a. The magnitude of the displacement is 70 mi b. The displacements direction is to the northeast c. The magnitude of the displacement is something less that 70 mi 16. Suppose a car is moving in a straight line and its speed is increasing ...
... 15. Which of the following is not true about the car in # 14 a. The magnitude of the displacement is 70 mi b. The displacements direction is to the northeast c. The magnitude of the displacement is something less that 70 mi 16. Suppose a car is moving in a straight line and its speed is increasing ...
forces ch2,3
... -It is a constant velocity (speed) thus the net force = 0 b/c air resistance balances force of gravity, and acceleration = 0 -Depends on size, shape, and mass -Ex: Open parachute v/s Closed parachute (air resistance is greater for the opened one) ...
... -It is a constant velocity (speed) thus the net force = 0 b/c air resistance balances force of gravity, and acceleration = 0 -Depends on size, shape, and mass -Ex: Open parachute v/s Closed parachute (air resistance is greater for the opened one) ...
CH-5 Lecture - Chemistry at Winthrop University
... Every body in the universe attracts every other body with a force that is directly proportional to the product of the masses of the bodies and inversely proportional to the square of the distance between the bodies. ...
... Every body in the universe attracts every other body with a force that is directly proportional to the product of the masses of the bodies and inversely proportional to the square of the distance between the bodies. ...
PHYSICS 111 HOMEWORK SOLUTION #13 May 1, 2013
... A comet (see figure below) approaches the Sun to within 0.570 AU, and its orbital period is 90.6 years. (AU is the symbol for astronomical unit, where 1 AU = 1.50 ×1011 m is the mean EarthSun distance.) How far from the Sun will the comet travel before it starts its ...
... A comet (see figure below) approaches the Sun to within 0.570 AU, and its orbital period is 90.6 years. (AU is the symbol for astronomical unit, where 1 AU = 1.50 ×1011 m is the mean EarthSun distance.) How far from the Sun will the comet travel before it starts its ...
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.