Lecture_17ppt
... • Starting from Earth’s surface, Vesc=11 km/s • Starting from Sun’s surface, Vesc= 616 km/s ...
... • Starting from Earth’s surface, Vesc=11 km/s • Starting from Sun’s surface, Vesc= 616 km/s ...
Measuring Motion
... objects traveling through a fluid (fluid may be gas or liquid) Ex. Swimming through water or a plane flying in the air ...
... objects traveling through a fluid (fluid may be gas or liquid) Ex. Swimming through water or a plane flying in the air ...
PHY2020 Test 2 November 5, 2014 Name: sin(30) = 1/2 cos(30
... const acceleration const acceleration Centripetal force pointing toward the center of circular motion Centripetal force pointing toward the center of circular motion T is the period of rotational motion. a is the magnitude of the centripetal acceleration. Newton’s Law of gravity Newton’s Gravitation ...
... const acceleration const acceleration Centripetal force pointing toward the center of circular motion Centripetal force pointing toward the center of circular motion T is the period of rotational motion. a is the magnitude of the centripetal acceleration. Newton’s Law of gravity Newton’s Gravitation ...
POISE AND EVOLUTION OF THE GALAXY : STRUCTURE ,
... to ensure such a galactic confinement of cosmic rays. Moreover, to be effective, the overall magnetic field for galactic confinement should still stay roughly, but uniformly, perpendicular to the Galaxy plane. Actually, there is no compelling reason for it : magnetic star fields contributing, in fac ...
... to ensure such a galactic confinement of cosmic rays. Moreover, to be effective, the overall magnetic field for galactic confinement should still stay roughly, but uniformly, perpendicular to the Galaxy plane. Actually, there is no compelling reason for it : magnetic star fields contributing, in fac ...
Newton`s Second Law Notes - Mrs. Romito Teaches Science
... Have All of the Necessary Variables 6. Write down the equation(s) you need to solve for the missing variables in your final equation. 7. Convert your units and solve for the missing variables. 8. Plug in those missing variables in your final equation and solve (remember to check your units!!!) ...
... Have All of the Necessary Variables 6. Write down the equation(s) you need to solve for the missing variables in your final equation. 7. Convert your units and solve for the missing variables. 8. Plug in those missing variables in your final equation and solve (remember to check your units!!!) ...
Figure 1
... morphology, star formation rate (SFR), mass, metallicity, internal structure, and interaction state found in the local Universe. The imaging survey will yield: accurate recent (<50 Myr) star formation histories (SFHs) from resolved massive stars, the extinction-corrected ages and masses of star ...
... morphology, star formation rate (SFR), mass, metallicity, internal structure, and interaction state found in the local Universe. The imaging survey will yield: accurate recent (<50 Myr) star formation histories (SFHs) from resolved massive stars, the extinction-corrected ages and masses of star ...
White Dwarf Stars
... tendency for neutrons to be incompressible (neutron degeneracy pressure). • Their gravity is too strong to be supported by electron degeneracy pressure. ...
... tendency for neutrons to be incompressible (neutron degeneracy pressure). • Their gravity is too strong to be supported by electron degeneracy pressure. ...
Chapter 5 PowerPoint
... 5-2 Dynamics of Uniform Circular Motion Newton F=ma Object moving in a circle must be acted on by a force Fr=mar=mv2/r Net force must be directed toward the center of the circle. Centripetal force - force directed towards center of circle ...
... 5-2 Dynamics of Uniform Circular Motion Newton F=ma Object moving in a circle must be acted on by a force Fr=mar=mv2/r Net force must be directed toward the center of the circle. Centripetal force - force directed towards center of circle ...
Chapter_5
... One of the most influential scientists and people in human history. His work laid the foundation of most of classical mechanics. Also built the first pratical telescope, developed (with Leibniz) differential and integral calculus Portrait by Godfrey Kneller (1689) ...
... One of the most influential scientists and people in human history. His work laid the foundation of most of classical mechanics. Also built the first pratical telescope, developed (with Leibniz) differential and integral calculus Portrait by Godfrey Kneller (1689) ...
Newton’s 2 Law Lab
... Use your graph from Part 1 to answer the following question. Although we never tested having 500 g of mass on the cart, theoretically what would have the acceleration of the cart have been? _____________________________________________________________________________________ Use your graph from Part ...
... Use your graph from Part 1 to answer the following question. Although we never tested having 500 g of mass on the cart, theoretically what would have the acceleration of the cart have been? _____________________________________________________________________________________ Use your graph from Part ...
Centripetal Force
... • However-Newton’s first law states- an object in motion will stay in motion until a force acts on it • Centrifugal force does not really exist! ...
... • However-Newton’s first law states- an object in motion will stay in motion until a force acts on it • Centrifugal force does not really exist! ...
Force and Newtons Laws
... 1. If a car travels west 75 kilometers takes a uturn and travels back east 25 kilometers what is the car’s final displacement? 50 km west 2. If a car at rest, traveled north 5.5 s and reached a final velocity of 22.0 m/s, what was the car’s acceleration? 4.0 m/s2 ...
... 1. If a car travels west 75 kilometers takes a uturn and travels back east 25 kilometers what is the car’s final displacement? 50 km west 2. If a car at rest, traveled north 5.5 s and reached a final velocity of 22.0 m/s, what was the car’s acceleration? 4.0 m/s2 ...
Integrated Physical Science: Semester 2 Exam Review
... Directly proportional. Push a grocery cart harder, it accelerates more 16. What is the relationship between mass and acceleration (assume that force remains the same)? Give an example. Inversely proportional. The grocery cart gets filled with things, it doesn’t accelerate as much with the same push. ...
... Directly proportional. Push a grocery cart harder, it accelerates more 16. What is the relationship between mass and acceleration (assume that force remains the same)? Give an example. Inversely proportional. The grocery cart gets filled with things, it doesn’t accelerate as much with the same push. ...
net force
... • It is the law which explains how things move • If a net force is applied to an object it will accelerate – change its velocity • It includes the law of inertia if there is no force F = 0, then accel = 0 the velocity doesn’t change no force is needed to keep an object moving with constant vel ...
... • It is the law which explains how things move • If a net force is applied to an object it will accelerate – change its velocity • It includes the law of inertia if there is no force F = 0, then accel = 0 the velocity doesn’t change no force is needed to keep an object moving with constant vel ...
Day 3
... As you hurry to catch your flight at the local airport, you encounter a moving walkway that is 85 m long and has a speed of 2.2 m/s relative to the ground. If it takes you 68 s to cover 85 m when walking on the ground, how long will it take you to cover the same distance on the walkway? Assume that ...
... As you hurry to catch your flight at the local airport, you encounter a moving walkway that is 85 m long and has a speed of 2.2 m/s relative to the ground. If it takes you 68 s to cover 85 m when walking on the ground, how long will it take you to cover the same distance on the walkway? Assume that ...
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.