Stellar Populations of Galaxies- 2 Lectures H
... The limit of the Balmer series and the blending of the high-order Balmer lines produces a discontinuity of the spectrum blueward of 3650°A. (the Balmer break) –more important in young populations, The break amplitude and position is a proxy for the age of the stellar population The UV continuum flux ...
... The limit of the Balmer series and the blending of the high-order Balmer lines produces a discontinuity of the spectrum blueward of 3650°A. (the Balmer break) –more important in young populations, The break amplitude and position is a proxy for the age of the stellar population The UV continuum flux ...
Version 001 – Review 1: Mechanics – tubman – (IBII20142015) 1
... rate means constant negative acceleration and constant negative force: F = m a < 0 . 034 (part 6 of 8) 10.0 points Identify the force that would allow the car to move toward the left and speed up at a steady rate (constant acceleration). ...
... rate means constant negative acceleration and constant negative force: F = m a < 0 . 034 (part 6 of 8) 10.0 points Identify the force that would allow the car to move toward the left and speed up at a steady rate (constant acceleration). ...
G020005-00 - DCC
... Gravitational Waves Effect on matter • Freely falling masses move in response to the gravitational wave • Gravitational wave is a tensor so masses move in both transverse directions ...
... Gravitational Waves Effect on matter • Freely falling masses move in response to the gravitational wave • Gravitational wave is a tensor so masses move in both transverse directions ...
20_Testbank
... dense regions such as galaxies and clusters of galaxies, gravity is able to overcome the expansion and keep these objects from expanding. However, on larger scales, where the average density is lower, gravity does not have as strong an effect, and therefore the expansion continues between clusters o ...
... dense regions such as galaxies and clusters of galaxies, gravity is able to overcome the expansion and keep these objects from expanding. However, on larger scales, where the average density is lower, gravity does not have as strong an effect, and therefore the expansion continues between clusters o ...
Forces - Cloudfront.net
... of an object. The standard unit is the kilogram, kg. The more massive an object is, the more it is able to resist a change in its motion. It is easier to push a 10 kg object into motion than it is a 3000 kg car. dynamics All of this begins the topic of _______________, or why objects move. ...
... of an object. The standard unit is the kilogram, kg. The more massive an object is, the more it is able to resist a change in its motion. It is easier to push a 10 kg object into motion than it is a 3000 kg car. dynamics All of this begins the topic of _______________, or why objects move. ...
Newton`s 2nd Law - San Diego Mesa College
... the gate. (*Make sure that the hanging mass is not swinging back and forth: the string should remain vertical during the fall*) 3. Record the number shown on the photogate display as t1 in the data table, then push the “reset” button. Repeat step 2 and record this time as t2. Record the average time ...
... the gate. (*Make sure that the hanging mass is not swinging back and forth: the string should remain vertical during the fall*) 3. Record the number shown on the photogate display as t1 in the data table, then push the “reset” button. Repeat step 2 and record this time as t2. Record the average time ...
Torque Rotational Dynamics
... The distribution of mass matters here – these two objects have the same mass, but the one on the left has a greater rotational inertia, as so much of its mass is far from the axis of rotation. ...
... The distribution of mass matters here – these two objects have the same mass, but the one on the left has a greater rotational inertia, as so much of its mass is far from the axis of rotation. ...
Chapter 04 Solutions - Mosinee School District
... it is a force exerted on block 2 by block 1 (which is not part of this system). Applying Newton’s second law to this system gives ΣFx = ma ...
... it is a force exerted on block 2 by block 1 (which is not part of this system). Applying Newton’s second law to this system gives ΣFx = ma ...
Document
... A glass of water placed on a table remains there unless a force is applied to remove it. Similarly, if a car is moving with uniform velocity, it goes on moving with the uniform velocity. Objects will remain in their state of rest or motion unless a force acts to change the motion. Any change in moti ...
... A glass of water placed on a table remains there unless a force is applied to remove it. Similarly, if a car is moving with uniform velocity, it goes on moving with the uniform velocity. Objects will remain in their state of rest or motion unless a force acts to change the motion. Any change in moti ...
21_Testbank
... made the size of a grapefruit, the nearest star would be on the other side of the continent. However, if the Milky Way (or any other galaxy) were made the size of a grapefruit, there would likely be another galaxy within a few feet of it. Thus, galaxy interactions are far more common than star-star ...
... made the size of a grapefruit, the nearest star would be on the other side of the continent. However, if the Milky Way (or any other galaxy) were made the size of a grapefruit, there would likely be another galaxy within a few feet of it. Thus, galaxy interactions are far more common than star-star ...
Since W = Fd, and v =d/t, we can also express power as
... Vector Addition: We add vectors to find the result of 2 or more vectors of the same kind acting on an object. To do this, join he vectors head to tail without changing their length or direction. The resultant (R) is drawn so that its head touches a head. Some examples of vector addition are shown on ...
... Vector Addition: We add vectors to find the result of 2 or more vectors of the same kind acting on an object. To do this, join he vectors head to tail without changing their length or direction. The resultant (R) is drawn so that its head touches a head. Some examples of vector addition are shown on ...
Einstein`s waves: a new tool to explore the Universe
... This sequence begins with the Chandra Deep Field-North, the deepest X-ray image ever taken. Black holes that are also found in submillimeter observations, indicating active star formation in their host galaxies, are then marked. The view then zooms onto one pair of particularly close black holes (kn ...
... This sequence begins with the Chandra Deep Field-North, the deepest X-ray image ever taken. Black holes that are also found in submillimeter observations, indicating active star formation in their host galaxies, are then marked. The view then zooms onto one pair of particularly close black holes (kn ...
Newton`s Laws PPT
... If the rope passes around a massless, frictionless pulley, the tension will be transmitted to the other end of the rope ...
... If the rope passes around a massless, frictionless pulley, the tension will be transmitted to the other end of the rope ...
PHY 101 Lecture Notes
... Published “Principia” in which he outlined 3 basic laws of motion: 1. A body continues at rest or in motion in a straight line unless acted on by some force. 2. The change in motion of a body is proportional to the size and direction of the force acting on it. 3. When one body exerts a force on a 2n ...
... Published “Principia” in which he outlined 3 basic laws of motion: 1. A body continues at rest or in motion in a straight line unless acted on by some force. 2. The change in motion of a body is proportional to the size and direction of the force acting on it. 3. When one body exerts a force on a 2n ...
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.