Classification and structure of galaxies
... • Stars and star clusters – microwaves generated by water from H II regions (called the MASER technique) traces the Milky Way’s spiral arms • Nebulae – infrared light (detected by the Spitzer Space Telescope) shows the outline of the heat generated by the bar • Other galaxies (analogous structure as ...
... • Stars and star clusters – microwaves generated by water from H II regions (called the MASER technique) traces the Milky Way’s spiral arms • Nebulae – infrared light (detected by the Spitzer Space Telescope) shows the outline of the heat generated by the bar • Other galaxies (analogous structure as ...
MIDTERM STUDY GUIDE -
... will not be exactly like this. If it was, it would only be measuring your powers of memorization, and you know how I despise that. The problems presented here approximate those in the midterm, they do not mimic them. Please study over and above that which is given here. ...
... will not be exactly like this. If it was, it would only be measuring your powers of memorization, and you know how I despise that. The problems presented here approximate those in the midterm, they do not mimic them. Please study over and above that which is given here. ...
Early History & Fiction; Orbital Motion
... !" Potential energy of mass, m, depends only on the gravitational force field " !" Kinetic energy of mass, m, depends only on the velocity magnitude measured in an inertial frame of reference " !" Total energy is the sum of the two:" ...
... !" Potential energy of mass, m, depends only on the gravitational force field " !" Kinetic energy of mass, m, depends only on the velocity magnitude measured in an inertial frame of reference " !" Total energy is the sum of the two:" ...
Tri 3 Study Guide 2014
... Ch. 10 Section 3: Newton’s First & Second Laws (pp.389-392) Newton’s First Law of Motion: Newton’s first law states… ___________________________________________________________ o Examples: ___________________________________________________________________ o Newton’s first law is also called the ...
... Ch. 10 Section 3: Newton’s First & Second Laws (pp.389-392) Newton’s First Law of Motion: Newton’s first law states… ___________________________________________________________ o Examples: ___________________________________________________________________ o Newton’s first law is also called the ...
Newton_s_Laws
... Overview of Types of Forces • 1. Applied Force= force applied to an object by a person or another object. Example: a person pushes a desk across the room, applied force acting upon the desk. • 2. Gravity=force by which the earth, moon, or any other planet/massive object attracts another object towa ...
... Overview of Types of Forces • 1. Applied Force= force applied to an object by a person or another object. Example: a person pushes a desk across the room, applied force acting upon the desk. • 2. Gravity=force by which the earth, moon, or any other planet/massive object attracts another object towa ...
Force - springsphysics
... Push on a desk with your hand. your hand is distorted, showing a force is acting on it you can feel the desk pushing back on your hand Push harder! the harder you push on the desk the harder the desk pushes back on your hand You only feel the forces exerted on you. The forces must be ...
... Push on a desk with your hand. your hand is distorted, showing a force is acting on it you can feel the desk pushing back on your hand Push harder! the harder you push on the desk the harder the desk pushes back on your hand You only feel the forces exerted on you. The forces must be ...
Correct answers shown in boldface. Be sure to write your name and
... 31. The mass of a cluster of galaxies a. results in broadening the spectral lines from active nuclei in the cluster b. causes the cluster to glow all over as things fall into it c. makes the emission lines of the galaxies in the cluster shift wavelength significantly due to relativity d. is almost a ...
... 31. The mass of a cluster of galaxies a. results in broadening the spectral lines from active nuclei in the cluster b. causes the cluster to glow all over as things fall into it c. makes the emission lines of the galaxies in the cluster shift wavelength significantly due to relativity d. is almost a ...
Newton`s 2nd Law - Issaquah Connect
... acceleration occurs and air resistance is built up The greater the speed, the greater the air drag ...
... acceleration occurs and air resistance is built up The greater the speed, the greater the air drag ...
Section 2: Gravity
... ▪ All objects, regardless of their mass, accelerate at the same rate when they are in free fall. Why? Newton’s 2nd Law of Motion explains it: an object’s acceleration increases if the force on it increases, but its acceleration decreases if its mass increases. So, the more massive an object is, the ...
... ▪ All objects, regardless of their mass, accelerate at the same rate when they are in free fall. Why? Newton’s 2nd Law of Motion explains it: an object’s acceleration increases if the force on it increases, but its acceleration decreases if its mass increases. So, the more massive an object is, the ...
Newton`s Second Law of Motion
... 4. It picks up where we left off with Newton’s 1st law (easy transition). Assessment Strategy: 1. Quiz the students during the lab by asking find-out questions. i.e. What do you expect to happen if the target ball is bigger? 2. When they ask questions about conversions respond with a question about ...
... 4. It picks up where we left off with Newton’s 1st law (easy transition). Assessment Strategy: 1. Quiz the students during the lab by asking find-out questions. i.e. What do you expect to happen if the target ball is bigger? 2. When they ask questions about conversions respond with a question about ...
Newton`s Laws of Motion
... watch it slide to a rest position. The book comes to a rest because of the presence of a force that force being the force of friction which brings the book to a rest position. ...
... watch it slide to a rest position. The book comes to a rest because of the presence of a force that force being the force of friction which brings the book to a rest position. ...
Chapter 4 Forces and Newton’s Laws of Motion continued
... A) If mass of the object is known, and all forces acting on the object are known, then the acceleration vector can be calculated. B) If the acceleration vector and mass of an object are known, then the Net Force acting on the object can be calculated. It may surprise you! C) If the acceleration vect ...
... A) If mass of the object is known, and all forces acting on the object are known, then the acceleration vector can be calculated. B) If the acceleration vector and mass of an object are known, then the Net Force acting on the object can be calculated. It may surprise you! C) If the acceleration vect ...
Name______________ _________Date____________ General
... speed in a straight line, unless acted upon by an unbalanced force. 4|Page ...
... speed in a straight line, unless acted upon by an unbalanced force. 4|Page ...
Lab for October 14: acceleration due to gravity and Newton`s second
... Determine the value of g from fitting to the position and velocity data. For the linear fits, determine the standard deviation in the mean of from the standard deviation in the mean of and write the result as g g g . Show your calculation for the standard deviations in the mean of on your summ ...
... Determine the value of g from fitting to the position and velocity data. For the linear fits, determine the standard deviation in the mean of from the standard deviation in the mean of and write the result as g g g . Show your calculation for the standard deviations in the mean of on your summ ...
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.