chapter4
... • "Every object continues either at rest or at a constant speed in a straight line…." • What this common statement of the first law often leaves out is the final phrase "…unless it is forced to change its motion by forces acting on it." • In one word, we say "inertia." ...
... • "Every object continues either at rest or at a constant speed in a straight line…." • What this common statement of the first law often leaves out is the final phrase "…unless it is forced to change its motion by forces acting on it." • In one word, we say "inertia." ...
UNIT 2 REVIEW SHEET Answers sp 10
... 5. At terminal velocity acceleration is Zero!. 6. What is Newton’s law of inertia? The first law, which says that an object at rest, or an object in motion, will stay at rest, or continue its motion until acted upon by an unbalanced force. 7. If a ball rolls down an incline, how far does it roll up ...
... 5. At terminal velocity acceleration is Zero!. 6. What is Newton’s law of inertia? The first law, which says that an object at rest, or an object in motion, will stay at rest, or continue its motion until acted upon by an unbalanced force. 7. If a ball rolls down an incline, how far does it roll up ...
Chapter 2 Study Guide
... Be able to calculate the speed of an object: 20. What is the formula for speed: ______________________________________________________ Be able to calculate average speed: 21. What is average speed? _____________________________________________________________ 22. What is the formula for average spee ...
... Be able to calculate the speed of an object: 20. What is the formula for speed: ______________________________________________________ Be able to calculate average speed: 21. What is average speed? _____________________________________________________________ 22. What is the formula for average spee ...
(field forces: magnetic force, gravitational force).
... the Earth attracts the body. Weight (a vector quantity) is different from mass (a scalar quantity). The weight of a body varies with its location near the Earth (or other astronomical body), whereas its mass is the same everywhere in the universe. The weight of a body is the force that causes it to ...
... the Earth attracts the body. Weight (a vector quantity) is different from mass (a scalar quantity). The weight of a body varies with its location near the Earth (or other astronomical body), whereas its mass is the same everywhere in the universe. The weight of a body is the force that causes it to ...
neet test paper 06 - Sigma Physics Centre
... 23. Spherical balls of radius R are falling in a viscous fluid of viscosity η with a velocity v. The retarding viscous force acting on the spherical ball is : (a) directly proportional to R but inversely proportional to v (b) directly proportional to both radius R and velocity v (c) inversely propor ...
... 23. Spherical balls of radius R are falling in a viscous fluid of viscosity η with a velocity v. The retarding viscous force acting on the spherical ball is : (a) directly proportional to R but inversely proportional to v (b) directly proportional to both radius R and velocity v (c) inversely propor ...
Newton`s Laws Study Guide
... 25. What is the mass of the object represented in the following graph? ...
... 25. What is the mass of the object represented in the following graph? ...
1) If a blue whale has a mass of 1
... circular motion? Assume the automobile has a mass of 1250 kg. 3) A small asteroid with a mass of 2.05 × 108 kg is pulled into a circular orbit around Earth. The distance from the asteroid to Earth’s center is 7378 km. If the gravitational force needed to keep the asteroid in orbit has a magnitude of ...
... circular motion? Assume the automobile has a mass of 1250 kg. 3) A small asteroid with a mass of 2.05 × 108 kg is pulled into a circular orbit around Earth. The distance from the asteroid to Earth’s center is 7378 km. If the gravitational force needed to keep the asteroid in orbit has a magnitude of ...
PES 3210 Classical Mechanics I
... Be able to determine if a force is conservative or not (curl=0 or force can be expressed as the gradient of a potential). Be able to calculate the gradient of a scalar function and the curl of a vector function (Cartesian coordinates only). Given a conservative potential function, know how to find a ...
... Be able to determine if a force is conservative or not (curl=0 or force can be expressed as the gradient of a potential). Be able to calculate the gradient of a scalar function and the curl of a vector function (Cartesian coordinates only). Given a conservative potential function, know how to find a ...
Air Resistance Force
... Newton’s First Law An object at rest will stay at rest and an object in motion will stay in motion with the same speed and in the same direction, unless acted upon by unbalanced forces ...
... Newton’s First Law An object at rest will stay at rest and an object in motion will stay in motion with the same speed and in the same direction, unless acted upon by unbalanced forces ...
Newton`s Laws of Motion
... Newton’s 3rd Law The reaction of a rocket is an application of the third law of motion. Various fuels are burned in the ...
... Newton’s 3rd Law The reaction of a rocket is an application of the third law of motion. Various fuels are burned in the ...
Part III
... account, but the reasoning discussed there is correct. This story is probably legend rather than fact. ...
... account, but the reasoning discussed there is correct. This story is probably legend rather than fact. ...
Extragalactic AO Science
... Sensitivity increases rapidly with Strehl for point sources, but extended targets gain much less. AO systems produce additional background in Near-IR and reduce throughput further making it difficult to observe faint extended sources. Normal galaxy disks only achieve a maximum SB of K~16 mag/sq arcs ...
... Sensitivity increases rapidly with Strehl for point sources, but extended targets gain much less. AO systems produce additional background in Near-IR and reduce throughput further making it difficult to observe faint extended sources. Normal galaxy disks only achieve a maximum SB of K~16 mag/sq arcs ...
mechanics02
... The forces at both ends of the string are always the same magnitude. The tension is the same all the way along the string. ...
... The forces at both ends of the string are always the same magnitude. The tension is the same all the way along the string. ...
Gravitational Force and Orbits
... This tells us how gravitational force changes if we change the orbital radius. For example if a planet were twice as far from the sun, then the gravitational force would change to one fourth of the original value. We can change the force on our spinning tennis ball by changing the amount of water in ...
... This tells us how gravitational force changes if we change the orbital radius. For example if a planet were twice as far from the sun, then the gravitational force would change to one fourth of the original value. We can change the force on our spinning tennis ball by changing the amount of water in ...
Gravitational Field
... Everything pulls on everything else in a way that involves only mass and distance. The force of gravity between objects depends on the distance between their centers of mass. ...
... Everything pulls on everything else in a way that involves only mass and distance. The force of gravity between objects depends on the distance between their centers of mass. ...
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.