Lecture 18
... torque the acceleration will be less for the second scenario because I is bigger. It would be tougher to get the second dumbbell to rotate because of where we’ve put the axis of rotation, though we haven’t actually changed the masses! But what if we don’t have point masses to deal with? What if we h ...
... torque the acceleration will be less for the second scenario because I is bigger. It would be tougher to get the second dumbbell to rotate because of where we’ve put the axis of rotation, though we haven’t actually changed the masses! But what if we don’t have point masses to deal with? What if we h ...
Newton`s Laws of Motion – In Sports
... Newton’s Second Law in (Insert Sport Name) Using complete sentences, explain how Newton’s Second Law of Motion applies in your sport. Make sure you have at least two examples. One example should include objects of equal mass meeting different forces. How do they accelerate? The second exampl ...
... Newton’s Second Law in (Insert Sport Name) Using complete sentences, explain how Newton’s Second Law of Motion applies in your sport. Make sure you have at least two examples. One example should include objects of equal mass meeting different forces. How do they accelerate? The second exampl ...
Lab Writeup Moment of Inertia
... Moment of Inertia LBS 164L Purpose In this experiment, you will compute the moment of inertia of a simple rigid body from its mass distribution and compare that calculation with a measurement derived through an angular acceleration due to an applied torque. Theory If we apply a single, unbalanced fo ...
... Moment of Inertia LBS 164L Purpose In this experiment, you will compute the moment of inertia of a simple rigid body from its mass distribution and compare that calculation with a measurement derived through an angular acceleration due to an applied torque. Theory If we apply a single, unbalanced fo ...
Concept Questions
... Step 1: Draw free body force diagrams for each object and indicate the point of application of each force Step 2: Select point to compute torque about (generally select center of ...
... Step 1: Draw free body force diagrams for each object and indicate the point of application of each force Step 2: Select point to compute torque about (generally select center of ...
physical world
... motion of the moon around the earth, pendulums, bodies falling towards the earth etc. Each of these required a separate explanation, which was more or less qualitative. What the universal law of gravitation says is that, if we assume that any two bodies in the universe attract each other with a forc ...
... motion of the moon around the earth, pendulums, bodies falling towards the earth etc. Each of these required a separate explanation, which was more or less qualitative. What the universal law of gravitation says is that, if we assume that any two bodies in the universe attract each other with a forc ...
Phy 211: General Physics I
... Conceptually: reflects the effort required to bring a moving object to rest depends not only on its mass (inertia) but also on how fast it is moving ...
... Conceptually: reflects the effort required to bring a moving object to rest depends not only on its mass (inertia) but also on how fast it is moving ...
SST
... 5. Write down the differences between mass and weight. 6. Why is the weight of an object on the moon 1/6 th of its weight on the earth? An object weighs 10 N when measured on the surface of the earth. What would be its weight when measured on the surface of the moon? 7. How does the force of gravit ...
... 5. Write down the differences between mass and weight. 6. Why is the weight of an object on the moon 1/6 th of its weight on the earth? An object weighs 10 N when measured on the surface of the earth. What would be its weight when measured on the surface of the moon? 7. How does the force of gravit ...
7.3 Uniform Circular Motion and Centripetal Acceleration
... 7.5 Newton’s Law of Gravitation • Two 50 kg satellites move in circular orbits about the Earth at altitudes of 1000 km (about 620 mi) and 37,000 km (about 23,000 mi) respectively. The lower one monitors particles about to enter Earth’s atmosphere, and the higher one, takes weather pictures from its ...
... 7.5 Newton’s Law of Gravitation • Two 50 kg satellites move in circular orbits about the Earth at altitudes of 1000 km (about 620 mi) and 37,000 km (about 23,000 mi) respectively. The lower one monitors particles about to enter Earth’s atmosphere, and the higher one, takes weather pictures from its ...
Force and Motion
... An object is in EQULIBRIUM when the sum of all of the forces acting on it is zero. An object in EQUILIBRIUM will either be (and remain) at rest (no motion), or Will move with CONSTANT VELOCITY ...
... An object is in EQULIBRIUM when the sum of all of the forces acting on it is zero. An object in EQUILIBRIUM will either be (and remain) at rest (no motion), or Will move with CONSTANT VELOCITY ...
Geography 04b
... Suppose we were to hold an empty picture frame in our hands and view the world through it. Everything would appear pretty normal, unless we started to jerk the frame in arbitrary directions. In that situation, the world would appear to be jerking about too - like a movie made by a bad cameraman. If ...
... Suppose we were to hold an empty picture frame in our hands and view the world through it. Everything would appear pretty normal, unless we started to jerk the frame in arbitrary directions. In that situation, the world would appear to be jerking about too - like a movie made by a bad cameraman. If ...
2-D Dynamics - hrsbstaff.ednet.ns.ca
... the coefficient of kinetic friction and the force required to 3. Use ideas #1 and #2 to write down and solve equations pull the mass up the incline at constant speed. using Newton's 2nd Law and the friction equation. ...
... the coefficient of kinetic friction and the force required to 3. Use ideas #1 and #2 to write down and solve equations pull the mass up the incline at constant speed. using Newton's 2nd Law and the friction equation. ...
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.