height. When lifting an object straight up, work is only done against gravity. The work done by the moving force is equal to the change in gravitational potential energy if the object is moving at a constant speed. In order to move an object up an inclined plane, work must be done against the gravitational force AND friction on the inclined plane. The work done by the pulling force will be equal to the negative work done by friction, if the object is moving at a constant speed. Objective:
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point A to point B. A force (magnitude P = 2.0 N) acts on the block between A and B, as shown. Points A and B are 1.5 m apart. If the kinetic energies of the block at A and B are 5.0 J and 4.0 J, respectively, how much work is done on the block by the force of friction as the block moves from A to B? 1) -3.3 J 2) +1.3 J 3) +3.3 J 4) -1.3 J 5) +4.6 J 1) +96 1) 4.6 m/s 1) -3.3 J A 1.5-kg object moving along the x axis has a velocity of +4.0 m/s at x = 0. If the only force acting on this object
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My definition of momentum is Tenacity, force, and admiration. My current job is not secure. Despite, the fact that I have been working in broadcast news as a video editor for the past eleven years, receiving my masters in Media Design can start developing my strategy for career change. I have been searching for ways to maximize my talent and skill set to keep me current with technology. Technology changes so rapidly that if you don't keep up with it, it will pass you by. In my current career you
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Measurement of the moment of inertia of a flywheel A flywheel of radius R is set up on a horizontal axle of radius r. A string of length h is wrapped round the axle with a mass m tied to the end (Figures 1 and 2). The moment of inertia of the flywheel and axle is I. The flywheel is accelerated by the couple applied by the mass m. The mass is allowed to fall through a height h at which point the string leaves the axle. The velocity of the falling mass at this instant is v and the angular velocity
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simple harmonic motion of the acceleration due to gravity Introduction: A system undertaking simple harmonic motion (SHM) can be restrained very accurately. The period of the SHM depends both on the mass of the system and the strength of the force tending to restore the system to its equilibrium state). Oscillations are a common part of life, for instance the vibrations of a musical instrument which helps make sounds or the foundations of a car suspension which are assisted by oscillations.
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Michael Xu The first thing I considered before creating my car was the wheel size that I would use. After a bit of research, I came to the conclusion that using large back wheels and small front wheels would be most effective. I got this idea from the unique looking drag racing cars that have small front wheels and large back wheels. The reason for this is because during acceleration, the large wheels at the back can take advantage of the weight transfer during acceleration. The wheels at the
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Robin Hood Case Kevin Jackson Lander University ABSTRACT Robin Hood and his band of friends are facing an issue of sustainability. Sustainability is the capacity at which an environment can support those living in it. This describes the problem in this case because the bigger Robin Hood’s gang gets, the less resources there are to be spread amongst them. Robin Hood’s gang developed this issue because there are many people in the kingdom that do not support the king or his decisions. This is
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Front lighting System to control these four LED lights. The lights will turn together when the car is cornering. Between these two headlights there is a big spoiler. The spoiler is creating down force to keep the car on the ground. The vents behind the front fenders are not only creating more down force but also cooling the brakes. There is a big grille between two headlight can get more air to cool down the engine. The cooling system is very important for a powerful car. The new GTR has a 3.8-liter
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where B consists of points B (x, y) satisfying x2 + y 2 ≤ 1 and y ≤ 0. − Problem 4. (a) Compute the integral of f along the path → if c − f (x, y, z) = x + y + yz and →(t) = (sin t, cos t, t), 0 ≤ t ≤ 2π. c → − → − → − (b) Find the work done by the force F (x, y) = (x2 − y 2 ) i + 2xy j in moving a particle counterclockwise around the square with corners (0, 0), (a, 0), (a, a), (0, a), a > 0. Problem 5. (a) Compute the integral of z 2 over the surface of the unit sphere. → → − − → − → − − F · d S
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static friction. Keywords: static friction, coefficient of static friction, critical angle 1. Introduction Friction is the force that opposes motion. It is the resistance of surfaces moving against one another. It is a force that plays a very important role in our lives. Without it, we cannot walk, do our daily chores, and even slide endlessly due to external forces. This phenomenon remained unknown to the early people until Leonardo Da Vinci (1452-1519) studied and analyzed its importance in
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