a function of time. b. What is the initial value of the angular velocity? c. Calculate the instantaneous value of the angular velocity at t =5.00 s and the average angular velocity for the time interval t = 0 to t = 5.00 s. 2. At t = 0 the current to a dc electric motor is reversed‚ resulting in an angular displacement of the motor shaft given by to θ(t) = (250 rad/s)t - (20.0 rad/s2)t2 – (1.50 rad/s3)t3. a. At what time is the angular velocity of the motor shaft zero? b. Calculate
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Victoria Moran Enough is Enough In this article the author‚ Victoria Moran‚ reflects on her battles with weight and the struggles she experienced. She explains how she slowly progressed and found yoga‚ and how yoga helped her overcome her battle with weight lose through techniques instilled in her through the practice of the principles of yoga. The author focuses on the yogic ethic of ‘aparigraha’ or non-hoarding as the foundation of weight loss. This holistic approach to weight loss is very
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WHAT IS TORQUE? Torque is a measure of how much a force acting on an object causes that object to rotate. The object rotates about an axis‚ which we will call the pivot point‚ and will label ’O ’. We will call the force ’F ’. The distance from the pivot point to the point where the force acts is called the moment arm‚ and is denoted by ’r ’. Note that this distance‚ ’r ’‚ is also a vector‚ and points from the axis of rotation to the point where the force acts. (Refer to Figure 1 for a pictoral
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Job Rotation System Report to XYZ Co. Prepared by Dan MacLeod and Eric Kennedy 1993 Introduction There are many reasons for implementing a job rotation system including the potential for increased product quality‚ employee satisfaction and lower cumulative trauma disorder rates. However‚ the difficulties of changing the organizational structure of an entire facility can prove difficult. It is important that the program start slowly at first so that the program can
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Earth’s Rotation Earth ’s rotation is the rotation of the solid Earth around its own axis. The Earth rotates from the west towards the east. As viewed from the North Star or polestar Polaris‚ the Earth turns counter-clockwise. The North Pole‚ also known as the Geographic North Pole or Terrestrial North Pole‚ is the point in the Northern Hemisphere where the Earth ’s axis of rotation meets its surface. This point is distinct from the Earth ’s North Magnetic Pole. The South Pole is the other point
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Experiment #4 Torque ABSTRACT The objective of the experiment is to observe how the weight of the beam on which the forces act behaves like a force concentrated at the center of gravity of the beam and to determine the conditions of equilibrium for several parallel forces. Before the experiment proper‚ Torque was discussed extensively. The experiment is divided into two parts. In the first experiment‚ the meter stick was weighed and the group was tasked to find the center of gravity of
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1. What is a simpler way to expressing 0.000 018 A? 2. What is a simpler way to expressing 5 000 000 V? 3. An electric motor is developing 8.5kW at a speed of 900r/min. Calculate the torque available at the shaft. 4. A generating station has a daily output of 160MW h and uses 300 t (tones) of coal in the process. The coal releases 7 MJ/kg when burnt. Calculate the overall efficiency of the station. 5. A lift of 250 kg mass is raised with a velocity of 6 m/s. If the driving motor has an efficiency
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Job rotation advantages and disadvantages Advantages 1. Helps Managers Explore the Hidden Talent: Job Rotation is designed to expose employees to a wider range of operations in order to assist managers in exploring their hidden talent. In the process‚ they are moved through a variety of assignments so that they can gain awareness about the actual working style of the organization and understand the problems that crop up at every stage. Through this process‚ managers identify what a particular
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Finite Elements in Analysis and Design 59 (2012) 66–75 Contents lists available at SciVerse ScienceDirect Finite Elements in Analysis and Design journal homepage: www.elsevier.com/locate/finel Improved braking torque generation capacity of an eddy current brake with time varying magnetic fields: A numerical study Kerem Karakoc a‚n‚ Edward J. Park a‚b‚ Afzal Suleman a a b Department of Mechanical Engineering‚ University of Victoria‚ PO Box 3055‚ Victoria‚ BC‚ Canada V8W 2Y2 Mechatronic Systems Engineering
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Discuss the implications of the of the split-brain procedure (severing of the corpus callosum) for the understanding of the connections between the left and right hemisphere. The first known split-brain surgical procedure performed on humans’ was in the early 1940’s by Van Wagenen and Herren‚ in which both intended to control seizures of patients who suffered intractable epilepsy (Francois Boller‚ Jordan Graffman‚ 2000). The procedure performed by Van Wagenen and Herren was based on the speculation
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