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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work. The basic design is the same although some of the individual parts vary between the models. The clutch assembly is attached to the engine output shaft via the clutch housing. (Yellow) In addition‚ the clutch housing provides some rotational inertia to the clutch assembly. The clutch has two pressure plates. (Blue) The rear pressure plate is fixed to the clutch housing and does not move. The front pressure plate “floats” on three flat arced springs around it’s perimeter. (Red) The diaphragm
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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 systems
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Translational motion Translational motion is the aspect in which a body moves from a specific point to the next. This can be in terms of objects‚ molecules or atoms. This kind of motion normally takes place in a straight line for instance bullet which is fired by a gun. The object in motion does not change by turning on its axis for it travels in a straight line. Any slight change or rotation can cause the object to change direction in general making it not move toward the specified direction.
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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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without slipping a distance of d = 3.7 m down a θ = 33° incline. The sphere has a mass M = 4.2 kg and a radius R = 0.28 m. For this one‚ you have to do part © first… and don’t forget that ur working with a sphere‚ so u gotta look up the moment of inertia (I) in order to get the correct answer… a) Of the total kinetic energy of the sphere‚ what fraction is translational? U just divide the translational found in part (b) by KEtotal ((1/2)mv2 + (1/2)Iω2) 0.71 b) What is
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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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BALANCING OF ROTATING MACHINES The first thing to be explored to control vibrations is to try to alter the source so that it produces less vibration. This method may not always be feasible. Some examples of the sources of vibration that cannot be altered are earthquake excitation‚ atmospheric turbulence‚ road roughness‚ and engine combustion instability. On the other hand‚ certain sources such as unbalance in rotating or reciprocating machines can be altered to reduce the vibrations. This can
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Analysis Torque is the ability of force to change the rotational motion of a particle. It is also called the moment of force. It is always specified with regard to the axis of rotation. On the experiment the axis of rotation serves as the model balance. This means that as much as torque is directly proportional with the force applied on a particle‚ it is also dependent on the perpendicular distance of the applied force to the axis of rotation. On the first activity we need to determine
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Trifilar Suspension Summary The polar moment of inertia for an assembly of solid objects was calculated using the trifilar suspension apparatus. The periodic time for the experimental and theoretical results were analysed and compared in order to study the relationship between the mass moment of inertia and the mass of an assembly. Table of Contents 1. Introduction – page 3 2. Theory – page 4 - 7 3. Apparatus – page 8 4. Procedure – page 9 5. Results – page 10 - 11 6. Discussion
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