Types of Variation
... In physics and other sciences, many experiments are performed to obtain or test a relationship between two variables (manipulated and responding). Once the evidence is collected and analyzed, the relationship is expressed clearly and concisely using the concepts and language of mathematics. The math ...
... In physics and other sciences, many experiments are performed to obtain or test a relationship between two variables (manipulated and responding). Once the evidence is collected and analyzed, the relationship is expressed clearly and concisely using the concepts and language of mathematics. The math ...
Chapter 3: Galileo, Newton, and Einstein
... The Greeks knew that the lack of observable parallax could mean one of two things: 1. Stars are so far away that stellar parallax is too small to notice with the naked eye 2. Earth does not orbit Sun; it is at the bottom of the universe With rare exceptions such as Aristarchus, the Greeks rejected ...
... The Greeks knew that the lack of observable parallax could mean one of two things: 1. Stars are so far away that stellar parallax is too small to notice with the naked eye 2. Earth does not orbit Sun; it is at the bottom of the universe With rare exceptions such as Aristarchus, the Greeks rejected ...
Newton`s Second Law
... laws of motion are the best known of these. The first law seems to be at odds with our everyday experience. Newton’s first law states that any object at rest that is not acted upon by outside forces will remain at rest, and that any object in motion not acted upon by outside forces will continue its ...
... laws of motion are the best known of these. The first law seems to be at odds with our everyday experience. Newton’s first law states that any object at rest that is not acted upon by outside forces will remain at rest, and that any object in motion not acted upon by outside forces will continue its ...
File
... Ex. A ball hits a bat. The ball exerts a force on the bat. The bat exerts a forces on the ball equal in magnitude and opposite in direction. Outcome: The ball changed direction and accelerates. The bat is slowed down by the ball. We are now looking at a system instead of an object. ...
... Ex. A ball hits a bat. The ball exerts a force on the bat. The bat exerts a forces on the ball equal in magnitude and opposite in direction. Outcome: The ball changed direction and accelerates. The bat is slowed down by the ball. We are now looking at a system instead of an object. ...
Powerpoint
... explains why planets must orbit the Sun in circles or ellipses, rather than any other kind of shape • Bonus – Newton’s Law also makes predictions for shape of comet orbits, which Kepler’s Laws do not ...
... explains why planets must orbit the Sun in circles or ellipses, rather than any other kind of shape • Bonus – Newton’s Law also makes predictions for shape of comet orbits, which Kepler’s Laws do not ...
Momentum
... If the momentum of an object changes either the mass, the velocity, or both have to ...
... If the momentum of an object changes either the mass, the velocity, or both have to ...
ID_newton4_060906a - Swift Education and Public Outreach
... Students may be confused by this because they know that more massive objects weigh more. While this is true, it is important to distinguish between weight and mass. Mass is intrinsic to matter, but weight is the force of gravity on that mass. Remember, F=ma. The acceleration due to gravity does not ...
... Students may be confused by this because they know that more massive objects weigh more. While this is true, it is important to distinguish between weight and mass. Mass is intrinsic to matter, but weight is the force of gravity on that mass. Remember, F=ma. The acceleration due to gravity does not ...
stars & galaxies
... The milKy Way… our home iN The sTars… • The Milky Way has a diameter of about 100,000 light years. • The nucleus is 2000 light years thick. • Our sun is located 30,000 light years from the nucleus. • It takes the sun 200 million years to ...
... The milKy Way… our home iN The sTars… • The Milky Way has a diameter of about 100,000 light years. • The nucleus is 2000 light years thick. • Our sun is located 30,000 light years from the nucleus. • It takes the sun 200 million years to ...
Forces HW-1
... If the gymnast comes to rest over a shorter distance, is the force exerted by the ground greater than, less than, or the same as in part (a)? 5. •• Driving home from school one day, you spot a ball rolling out into the street. You brake for 1.20 s, slowing your 950-kg car from 16.0 m/s to 9.50 m/s. ...
... If the gymnast comes to rest over a shorter distance, is the force exerted by the ground greater than, less than, or the same as in part (a)? 5. •• Driving home from school one day, you spot a ball rolling out into the street. You brake for 1.20 s, slowing your 950-kg car from 16.0 m/s to 9.50 m/s. ...
Final Exam - Kuniv.edu.kw
... acceleration α. Which of the following statements is correct? (a) ω and α are the same for all points on the disk. (b) ω is the same for all points on the disk, but α is different for each point. (c) α is the same for all points on the disk, but ω is different for each point. (d) ω and α are both di ...
... acceleration α. Which of the following statements is correct? (a) ω and α are the same for all points on the disk. (b) ω is the same for all points on the disk, but α is different for each point. (c) α is the same for all points on the disk, but ω is different for each point. (d) ω and α are both di ...
Introduction to Physics I
... Subject to instructor discretion: a. Weekly homework/question set: 10+ discussion and/or numerical problems taken from the textbook and online homework systems. Example: A bullet of mass m = 0.0050 kg and speed v = 266 m/s is fired into a wooden block of mass M = 3.2 kg sitting on the bottom of an i ...
... Subject to instructor discretion: a. Weekly homework/question set: 10+ discussion and/or numerical problems taken from the textbook and online homework systems. Example: A bullet of mass m = 0.0050 kg and speed v = 266 m/s is fired into a wooden block of mass M = 3.2 kg sitting on the bottom of an i ...
IOSR Journal of Applied Physics (IOSR-JAP) ISSN: 2278-4861.
... In my opinion it is hard to say whether the universe is expanding or collapsing because only of the observation of a few supernovae and their rate of expansion can never predict the complete nature of the Universe. So here we go for a fiction like explanation of the above mentioned phenomena. ...
... In my opinion it is hard to say whether the universe is expanding or collapsing because only of the observation of a few supernovae and their rate of expansion can never predict the complete nature of the Universe. So here we go for a fiction like explanation of the above mentioned phenomena. ...
hp1f2013_class06_momentum
... f1 f 2 p1 p2 0. This says that the momentum of the system is dt a constant of the motion, unless an external force acts on it. Newton actually wrote his second law as F ...
... f1 f 2 p1 p2 0. This says that the momentum of the system is dt a constant of the motion, unless an external force acts on it. Newton actually wrote his second law as F ...
Ch 6: Centripetal Forces
... In the absence of a net force, objects move in a straight line. If they turn — that is, if their velocity changes, even only in direction — there must be an applied force. Forces which cause objects to turn around continuously in a circle are known as centripetal forces. When an object moves in a ci ...
... In the absence of a net force, objects move in a straight line. If they turn — that is, if their velocity changes, even only in direction — there must be an applied force. Forces which cause objects to turn around continuously in a circle are known as centripetal forces. When an object moves in a ci ...
Slide 1
... •Ellipticals have lots of globular clusters (about twice that of disk galaxies) •these fall into two groups based on color •color determined by metallicity, with more metal-rich GCs (redder) possibly the result of galaxy mergers •Ellipticals have much less cool, atomic gas than spiral galaxies •< 1 ...
... •Ellipticals have lots of globular clusters (about twice that of disk galaxies) •these fall into two groups based on color •color determined by metallicity, with more metal-rich GCs (redder) possibly the result of galaxy mergers •Ellipticals have much less cool, atomic gas than spiral galaxies •< 1 ...
chapter 4: dynamics: force and newton`s laws of motion
... lowers his body 0.300 m and then accelerates through this distance by forcefully straightening his legs. This player leaves the floor with a vertical velocity sufficient to carry him 0.900 m above the ...
... lowers his body 0.300 m and then accelerates through this distance by forcefully straightening his legs. This player leaves the floor with a vertical velocity sufficient to carry him 0.900 m above the ...
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.