Unit 5 Notes - Killeen ISD
... motion, and slows an object or prevents it from moving. Gravity is a constant, and always accelerates an object at 9.8 m/s2 on Earth. Magnetism is a force with which a magnet is attracted to a metal object. MASS vs WEIGHT: Mass is NOT affected by gravity because mass is the amount of matter (atoms) ...
... motion, and slows an object or prevents it from moving. Gravity is a constant, and always accelerates an object at 9.8 m/s2 on Earth. Magnetism is a force with which a magnet is attracted to a metal object. MASS vs WEIGHT: Mass is NOT affected by gravity because mass is the amount of matter (atoms) ...
TRUE/FALSE QUESTIONS
... 16. The shear strength of concrete can found using the empirical formula vc = C (fc)1/2 where: C = 2.00 and vc and fc are both measured in lbf/in2. What numerical value should be used for C if vc and fc are both measured in MPa? a. 6.02 b. 0.166 c. 2.00 d. 0.500 e. 1.00 17. If the mass of an object ...
... 16. The shear strength of concrete can found using the empirical formula vc = C (fc)1/2 where: C = 2.00 and vc and fc are both measured in lbf/in2. What numerical value should be used for C if vc and fc are both measured in MPa? a. 6.02 b. 0.166 c. 2.00 d. 0.500 e. 1.00 17. If the mass of an object ...
Lect-7
... velocity relative to an inertial frame is itself an inertial frame A reference frame that moves with constant velocity relative to the distant stars is the best approximation of an inertial frame ...
... velocity relative to an inertial frame is itself an inertial frame A reference frame that moves with constant velocity relative to the distant stars is the best approximation of an inertial frame ...
spirit 2 - CEENBoT / TekBot Site
... Motion states that the acceleration of an object is produced by a net force in the same direction as the acceleration, is directly proportional to the magnitude of the net force, and inversely proportional to the mass of the object. This means that the acceleration (a) of an object is dependant on a ...
... Motion states that the acceleration of an object is produced by a net force in the same direction as the acceleration, is directly proportional to the magnitude of the net force, and inversely proportional to the mass of the object. This means that the acceleration (a) of an object is dependant on a ...
m1 u q1 m2 q2 m3 q3 k1 k2
... Indeed, the same result would have been obtained by Newton’s law (balance of forces) applied to the three masses. For the unforced (u = 0) equilibrium configurations, we set q̇ = q̈ = 0 in (2) and obtain an infinity of equilibria q 0 , all with equal q1 = q2 = q3 at a common arbitrary value. The two ...
... Indeed, the same result would have been obtained by Newton’s law (balance of forces) applied to the three masses. For the unforced (u = 0) equilibrium configurations, we set q̇ = q̈ = 0 in (2) and obtain an infinity of equilibria q 0 , all with equal q1 = q2 = q3 at a common arbitrary value. The two ...
Gravity Notes 2
... has. Even a tiny dust particle has gravity. Do you have gravity? Which has more gravity, you or the earth? Why? If you were an astronaut and you go farther into space, why do you become weightless? Because the distance between you and the earth increases the force of gravity between you and the eart ...
... has. Even a tiny dust particle has gravity. Do you have gravity? Which has more gravity, you or the earth? Why? If you were an astronaut and you go farther into space, why do you become weightless? Because the distance between you and the earth increases the force of gravity between you and the eart ...
NOTES Circular Motion
... must also be zero. Examples of objects in static equilibrium: bridges, buildings, playground structures, or sawhorses. The torque is always taken about an axis of rotation. The axis can be placed at any location, but once placed, it must stay put for the rest of the problem. All torques in the probl ...
... must also be zero. Examples of objects in static equilibrium: bridges, buildings, playground structures, or sawhorses. The torque is always taken about an axis of rotation. The axis can be placed at any location, but once placed, it must stay put for the rest of the problem. All torques in the probl ...
Chapter 30 Review
... 1. The greater the distance to a galaxy, the greater its velocity. 2. The greater the distance to a galaxy, the brighter its halo. 3. The greater the distance to a galaxy, the greater its age. 4. The greater the distance to a galaxy, the greater its mass. ...
... 1. The greater the distance to a galaxy, the greater its velocity. 2. The greater the distance to a galaxy, the brighter its halo. 3. The greater the distance to a galaxy, the greater its age. 4. The greater the distance to a galaxy, the greater its mass. ...
Slide 1
... According to the law of universal gravitation, the gravitational force between two masses decreases rapidly as the distance between the masses increases. No matter how far apart two objects are, the gravitational force between them never completely goes to zero. Because the gravitational force b ...
... According to the law of universal gravitation, the gravitational force between two masses decreases rapidly as the distance between the masses increases. No matter how far apart two objects are, the gravitational force between them never completely goes to zero. Because the gravitational force b ...
1 Ay 124 Winter 2016 – HOMEWORK #3
... Due Friday, Feb 5, 2016 by 5pm, in Denise’s mailbox in 249 Cahill Problem 1 The nearest spiral galaxy to the Milky Way, M31, has a very concentrated nucleus. At a projected radius of 1 arcsec, stars in the nucleus have a line of sight velocity dispersion of 150 km s−1 , and are also rotating about t ...
... Due Friday, Feb 5, 2016 by 5pm, in Denise’s mailbox in 249 Cahill Problem 1 The nearest spiral galaxy to the Milky Way, M31, has a very concentrated nucleus. At a projected radius of 1 arcsec, stars in the nucleus have a line of sight velocity dispersion of 150 km s−1 , and are also rotating about t ...
Chapter 4: Newton`s Laws of Motion
... For now we are not equipped to handle that situation and will only study situations where a rope passes over a pulley that can be considered to be massless. ...
... For now we are not equipped to handle that situation and will only study situations where a rope passes over a pulley that can be considered to be massless. ...
ppt
... I(t) is the inertia tensor Kind of like “angular mass” Linear momentum is mv Angular momentum is L=I(t) Or we can go the other way: =I(t)-1L ...
... I(t) is the inertia tensor Kind of like “angular mass” Linear momentum is mv Angular momentum is L=I(t) Or we can go the other way: =I(t)-1L ...
Newton`s Laws Review
... 2. What is Newton’s 1st law? An object at rest stays at rest and an object in motion stays in motion. Objects do this because of their inertia. 3. Describe what inertia is. Inertia is the resistance of any object to a change in its state of motion (can be moving or motionless) 4. What must be presen ...
... 2. What is Newton’s 1st law? An object at rest stays at rest and an object in motion stays in motion. Objects do this because of their inertia. 3. Describe what inertia is. Inertia is the resistance of any object to a change in its state of motion (can be moving or motionless) 4. What must be presen ...
Standard Physics Mid
... 3. The graph that best represents the relationship between acceleration and time for a freely falling body is (a) linear, positive slope (b) Linear, negative slope (c) horizontal line (d) parabolic curve 4. A train is traveling northward with a velocity of 100 km/hr. A child on this train walks sout ...
... 3. The graph that best represents the relationship between acceleration and time for a freely falling body is (a) linear, positive slope (b) Linear, negative slope (c) horizontal line (d) parabolic curve 4. A train is traveling northward with a velocity of 100 km/hr. A child on this train walks sout ...
1st Term Exam
... incline, there must be a force balancing the weight or gravitational force on the cart, the normal force. In addition, the problem says that the surface of the incline is rough. Therefore there must be friction force exerting on the cart as well. So the answer is 3. 1. No force on this cart other th ...
... incline, there must be a force balancing the weight or gravitational force on the cart, the normal force. In addition, the problem says that the surface of the incline is rough. Therefore there must be friction force exerting on the cart as well. So the answer is 3. 1. No force on this cart other th ...
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.