41.68 84.05 0 0 1 0 1 0 −15.47 −14.89 0 . 0 0 0 1 ‚ Bo = 0 ‚ 27.13 0 0 26.12 (6) where V is an applied armature voltage to DC motor. TABLE I PARAMETERS OF ROTARY P ENDULUM Parameter J m r L g B Kt Kg Km Rm ηm ηg Description Moment of inertia at the load Mass of pendulum arm Rotating arm length Length to pendulum’s center of mass Gravitational constant Viscous damping coefficient Motor torque constant SRV02 system gear ratio Back-EMF constant Armature resistance Motor efficiency
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torque. Measure the time taken for the mass to fall through Im then a=2s * m then α= a (rad/sec^2) t^2 s^2 R Also P=m*g-m*a=m[9.81-a] Nt And for the calculation of moment of inertia of the system referred to shaft1 we use: Ieqv= I1+I2*[Na] ^2+I3 [Na*Nc] ^2 Nb Nb Nd Procedure: 1. Determine‚ by the falling weight method the moment ’s of inertia associated with each of the individual shafts. 2. Assemble the system so that the gears meshed. 3. Determine by the falling weight method the equivalent
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Liquid Film Motors [pic] Fiona McLaughlin Zoe Cheng Loreto College Coleraine Comments Abstract We have carried out an experimental and theoretical study of liquid film motors. This phenomenon was first reported in 2009. Two papers have been published on arXiv.com‚ the first describing the phenomenon (Shiryaeva et al)‚ the second offering a theoretical model for the observations (Amjadi et al). The
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couldn’t have completed this project. I express my sincere thanks to my computer science teacher MR JOHN for giving me an opportunity to work on this project and guiding me towards successful completion of this Endeavour. AIM To determine the moment of inertia (I) of a bar magnet and time period of a bar magnet. rEQUIREMENTS (1) Deflection magnetometer (2) a bar magnet. (3) Oscillating magnetometer box (4) stopwatch. THEORY EXPERIMENTAL PROCEDURE
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Reference Guide & Formula Sheet for Physics #20 Page 1 of 8 Components of a Vector if V = 34 m/sec ∠48° then Vi = 34 m/sec•(cos 48°); and VJ = 34 m/sec•(sin 48°) #4 Weight = m•g g = 9.81m/sec² near the surface of the Earth = 9.795 m/sec² in Fort Worth‚ TX Density = mass / volume #21 Heating a Solid‚ Liquid or Gas Q = m•c•∆T (no phase changes!) Q = the heat added c = specific heat. ∆T = temperature change‚ K Linear Momentum momentum = p = m•v = mass • velocity momentum is conserved
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ello Doc Al and others. I am progressing along with my on-line basic physics course. I completed a new module and have some assessment questions to answer. Please review and let me know the ones that are correct. Those that are wrong just a little clue as to where my thinking process went a stray. I will add my thought process to the ones that I missed telling how I came up with the answer that I did. Thanks for taking the time to assist me on some basic questions. 1. What is the rotational speed
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any orientation. Although this orientation does not remain fixed‚ it changes in response to an external torque much less and in a different direction than it would without the large angular momentum associated with the disk’s high rate of spin and moment of inertia. The device’s orientation remains nearly fixed‚ regardless of the mounting platform’s motion‚ because mounting the device in a gimbal will minimizes the external torque. The examples of the application of gyroscope is in inertial navigation
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Introductory Physics I Elementary Mechanics by Robert G. Brown Duke University Physics Department Durham‚ NC 27708-0305 rgb@phy.duke.edu Copyright Notice Copyright Robert G. Brown 1993‚ 2007‚ 2013 Notice This physics textbook is designed to support my personal teaching activities at Duke University‚ in particular teaching its Physics 141/142‚ 151/152‚ or 161/162 series (Introductory Physics for life science majors‚ engineers‚ or potential physics majors‚ respectively). It is freely
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Life Changing Moment Ever since I can remember I spent almost ever y day at my Grandparents house. They live right down the road from my family and me‚ and that is how they got the title “Grandma and Grandpa down the road”. They lived in a small house three bedrooms‚ one bathroom‚ and a small living room with a fire place that can worm the coldest heart. And in their back yard stood a shed filled with old farm equipment and stray cats with their kittens that I would try to catch every day. They
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I. Introduction Physics is the natural science that involves the study of matter and its motion through space and time‚ along with related concepts such as energy and force. More broadly‚ it is the general analysis of nature‚ conducted in order to understand how the universe behaves. Physics is one of the oldest academic disciplines‚ perhaps the oldest through its inclusion of astronomy. Over the last two millennia‚ physics was a part of natural philosophy along with chemistry‚ certain branches
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