Newton`s laws of motion and gravity
... 1. Every body continues in a state of rest or uniform motion (constant velocity) in a straight line unless acted on by a force. (A deeper statement of this law is that momentum (mass x velocity) is a conserved quantity in our world, for unknown reasons.) This tendency to keep moving or keep still is ...
... 1. Every body continues in a state of rest or uniform motion (constant velocity) in a straight line unless acted on by a force. (A deeper statement of this law is that momentum (mass x velocity) is a conserved quantity in our world, for unknown reasons.) This tendency to keep moving or keep still is ...
Irregular Galaxies
... • Although this is a similar term, a nova and a supernova are very different. • A supernova is when a massive star that has a tremendous increase in its energy output due to a catastrophic explosion of its core. • Supernovas can light up the sky for many weeks. • The core of the star becomes tremend ...
... • Although this is a similar term, a nova and a supernova are very different. • A supernova is when a massive star that has a tremendous increase in its energy output due to a catastrophic explosion of its core. • Supernovas can light up the sky for many weeks. • The core of the star becomes tremend ...
mDv
... ex. A 20 N gravitational force exists between two objects 100 m apart. What would the force be if they were 50 m apart? What if the mass is tripled? What happens to gravitational force if the mass of one object is doubled? Be able to calculate gravitational force, given mass and distance Draw vector ...
... ex. A 20 N gravitational force exists between two objects 100 m apart. What would the force be if they were 50 m apart? What if the mass is tripled? What happens to gravitational force if the mass of one object is doubled? Be able to calculate gravitational force, given mass and distance Draw vector ...
Ethan Frome
... (a) What is the resultant velocity (magnitude and direction) of the boat? (b) If the river has a width of 50 m, how long does it take for the boat to cross it? 3. A missile is fired from the ground with an initial speed of 1700 m/s at an initial angle of 55o relative to the horizontal. Neglecting ai ...
... (a) What is the resultant velocity (magnitude and direction) of the boat? (b) If the river has a width of 50 m, how long does it take for the boat to cross it? 3. A missile is fired from the ground with an initial speed of 1700 m/s at an initial angle of 55o relative to the horizontal. Neglecting ai ...
PHYS2330 Intermediate Mechanics Quiz 14 Sept 2009
... The coordinate x measures the downward position of m1 as shown. The Lagrangian is A. L = 12 (m1 + m2 )ẋ2 − (m1 + m2 )gx B. L = 21 (m1 + m2 )ẋ2 + (m1 + m2 )gx C. L = 21 (m1 + m2 )ẋ2 + (m1 − m2 )gx D. L = 12 (m1 − m2 )ẋ2 − (m1 + m2 )gx E. L = 21 (m1 − m2 )ẋ2 − (m1 − m2 )gx 2. Given a Lagrangian L ...
... The coordinate x measures the downward position of m1 as shown. The Lagrangian is A. L = 12 (m1 + m2 )ẋ2 − (m1 + m2 )gx B. L = 21 (m1 + m2 )ẋ2 + (m1 + m2 )gx C. L = 21 (m1 + m2 )ẋ2 + (m1 − m2 )gx D. L = 12 (m1 − m2 )ẋ2 − (m1 + m2 )gx E. L = 21 (m1 − m2 )ẋ2 − (m1 − m2 )gx 2. Given a Lagrangian L ...
Lecture 9 - University of Manitoba Physics Department
... • Gravity: the weakest force of all. A significant force because all matter (we believe) is attracted by gravity. • Perhaps, a repulsive gravitational force acting at long distances (distant galaxies appear to be moving away faster than they should if only normal gravity acts). Wednesday, September ...
... • Gravity: the weakest force of all. A significant force because all matter (we believe) is attracted by gravity. • Perhaps, a repulsive gravitational force acting at long distances (distant galaxies appear to be moving away faster than they should if only normal gravity acts). Wednesday, September ...
PHYS 221 General Physics I - South Central College eCatalog
... This course will provide students with the principles of calculus based physics. The course has been designed for students who plan advanced study of science and/or engineering. The course will cover basic principles of mechanics including kinematics, statics, equilibrium and dynamics of particles, ...
... This course will provide students with the principles of calculus based physics. The course has been designed for students who plan advanced study of science and/or engineering. The course will cover basic principles of mechanics including kinematics, statics, equilibrium and dynamics of particles, ...
NEWTON`S LAWS OF MOTION
... First Law: A particle originally at rest, or moving in a straight line at constant velocity, will remain in this state if the resultant force acting on the particle is zero. Second Law: If the resultant force on the particle is not zero, the particle experiences an acceleration in the same direction ...
... First Law: A particle originally at rest, or moving in a straight line at constant velocity, will remain in this state if the resultant force acting on the particle is zero. Second Law: If the resultant force on the particle is not zero, the particle experiences an acceleration in the same direction ...
AP Physics Course Syllabus - Greensburg Salem School District
... COURSE DESCRIPTION: This rigorous academic course is taught on the level of a first-year algebra-based college course. Topics covered include mechanics, thermodynamics, electricity and magnetism, waves and optics, and modern physics. Emphasis is placed on both concept development and complex problem ...
... COURSE DESCRIPTION: This rigorous academic course is taught on the level of a first-year algebra-based college course. Topics covered include mechanics, thermodynamics, electricity and magnetism, waves and optics, and modern physics. Emphasis is placed on both concept development and complex problem ...
Word
... 2. A 3 kg mass is accelerated by a 6 Newton force. Both the mass and force are increased by 3 units (i.e., a 6 kg mass experiences a force of 9 Newtons). The experiment is repeated and the acceleration of the mass is calculated. a. Is the calculated acceleration in the second case different from th ...
... 2. A 3 kg mass is accelerated by a 6 Newton force. Both the mass and force are increased by 3 units (i.e., a 6 kg mass experiences a force of 9 Newtons). The experiment is repeated and the acceleration of the mass is calculated. a. Is the calculated acceleration in the second case different from th ...
Galaxies
... The central supermassive black hole. Globular clusters. Population I stars in the disk and spiral arms. Neutral hydrogen gas, invisible in the optical, but visible in the 21 cm radio line. Dark matter. ...
... The central supermassive black hole. Globular clusters. Population I stars in the disk and spiral arms. Neutral hydrogen gas, invisible in the optical, but visible in the 21 cm radio line. Dark matter. ...
Waves & Oscillations Physics 42200 Spring 2015 Semester
... • What is the net force due to a small displacement, -, away ...
... • What is the net force due to a small displacement, -, away ...
Newton`s 1st Law of Motion
... boy sits on it. The coefficient of friction for the snow and metal sled is 0.012. What force is necessary to pull the sled at constant speed? (Hint: the applied force is equal, but opposite direction to the force of friction.) ...
... boy sits on it. The coefficient of friction for the snow and metal sled is 0.012. What force is necessary to pull the sled at constant speed? (Hint: the applied force is equal, but opposite direction to the force of friction.) ...
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.