Engineering Mechanics - Statics Chapter 1 Problem 1-1 Represent each of the following combinations of units in the correct SI form using an appropriate prefix: (a) m/ms (b) μkm (c) ks/mg (d) km⋅ μN Units Used: μN = 10 −6 N km μkm = 10 9 −6 Gs = 10 s ks = 10 s mN = 10 ms = 10 Solution: ( a) m 3m = 1 × 10 ms s m km =1 ms s ( b) μkm = 1 × 10 μkm = 1 mm ( c) ks 9 s = 1 × 10 mg kg ks Gs =1 mg kg ( d) km⋅ μN = 1 × 10 −3 −3 −3 3 N s −3 m mN km⋅ μN = 1 mm⋅ N 1 ©
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The idea of kinetic art is getting a bit of a workout at the moment. MIT Museum recently hosted “year of kinetic art‚ including “5000 Moving Parts‚” a kinetic art exhibiton featuring large-scale works by Arthur Ganson‚ Anne Lilly‚ Rafael Lozano-Hemmer and John Douglas Powers. Plus the Kinetic Art Organization has published a digital “International Collection of Essays About Kinetic Art—2013—volume 1.” The two don’t overlap: The MIT show highlights a somewhat different segment of artists working
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Chemical kinetics‚ also known as reaction kinetics‚ is the study of rates of chemical processes. Chemical kinetics includes investigations of how different experimental conditions can influence the speed of a chemical reaction and yield information about the reaction’s mechanism and transition states‚ as well as the construction of mathematical models that can describe the characteristics of a chemical reaction. In 1864‚ Peter Waage and Cato Guldberg pioneered the development of chemical kinetics by formulating
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Electrostatic Field • An electrostatic field is a phenomenon that is very similar to a magnetic field. When an object is electrically charged‚ it creates an electrostatic field. If an object has an excess of electrons‚ then it’s considered to have a negative charge. If an object has fewer electrons than its surrounding environment‚ though‚ it’s considered to be positively charged. Just like with magnetic fields‚ two objects that are oppositely charged will attract each other. This scientific
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Friction Friction – It is an opposing force that acts between surfaces in contact moving with respect to each other. It always opposes relative motion between two surfaces. Cause of friction - Friction is cause by the irregularities on the two surfaces in contact. We are able to walk because of the force of friction Nature of surfaces – Smooth surfaces: less friction‚ Rough surfaces: greater friction How hard an object is pressed – Greater pressing force: Greater friction Mass of object
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Without friction the world would be very different! It would be so strange in a bad and good way..... For a start‚ walking would be different because when you put your weight on the foot behind you there would be nothing to stop it sliding. You would fall over and not be able to walk. It would be very hard to get around. You could consider blowing yourself around but it still wouldn’t work. Taking in a breath‚ you would slide forward and then blowing out‚ you would slide backward! Having no friction
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¬¬¬¬¬¬04/28/2010 Monday & Wednesday 7:40-10:30 Experiment #2 – Kinetics of the Decomposition of Hydrogen Peroxide Introduction: Chemical reactions are dependent upon two factors: temperature and concentrations of substance. We can monitor the rate at which a chemical decomposes or the rate at which a chemical substance appears. In this experiment we will be measuring the rate of decomposition of hydrogen dioxide with the following reaction: 2 H202 (aq) 4 2 H20 (l) + 02 (g) We can trap the
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KINETIC SCULPTURE EVALUATION Ekin Kara KINETIC SCULPTURE EVALUATION TESTS TEST 1 Movement Test Procedure Blow Dryer‚Wind‚ Blowing‚ Touching‚ Fan Outcome When I used blow dryer‚ the only vane that turned was the one that was right in front of the blow dryer even though I increased the volume. But I think it happened because the blow dryer only focuses on one point so it doesn’t effect the other vanes. When I used the power of wind‚ I realized that the result was so much
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about us and how we identify ourselves‚ throughout the experiences we face in our lives. Identity formation is defined as the combination of personal‚ social and cultural experiences that combine to form an individual’s identity. Identity is not static‚ and never will be; it is the result of continuous interaction with the environment. People in our lives such as friends‚ family‚ teachers and idols affect the way we identify ourselves; they are a big factor in building our personality. Past experiences
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eventually falls in the liquid with a constant speed of 6.0 cm s . k www.studyguide.pk www.studyguide.pk www.studyguide. (i) For this sphere travelling at constant speed‚ calculate k www.studyguide.pk www.studyguide.pk www.studyguide. 1. its kinetic energy‚ k www.studyguide.pk www.studyguide.pk www.studyguide. k www.studyguide.pk www.studyguide.pk www.studyguide. k www.studyguide.pk www.studyguide.pk www.studyguide. k www.studyguide.pk www.studyguide.pk
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