Completion Problems (Elasticity) 1. A steel wire of length 4.7m and cross-sectional area 3×10-5m2 stretches by the same amount as a copper wire of length 3.5m and cross-sectional area of 4×10–5m2 under a given load. What is the ratio of the Young’s modulus of steel to that of copper? For Steel l1= 4.7 m‚ a1 = 3.0 x 10-5 m2 Y1= Fl1/a1∆l Y1= (F x 4.7m)/ (3.0 x 10-5 x ∆l) For Copper L2=3.5 m‚ a2 = 4.0 x 10-5 m2 Y2= (F x 3.5m)/ (4.0 x 10-5 x ∆l) Dividing Steel by Copper Y1/ Y2
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sand will feed into the sand making machine‚ another part will feed back again into the fine jaw crusher for a third crushing‚ the size of fineness can be adjusted according to customer demand. Fine jaw crusher are the improved simple pendulum or compound pendulum jaw crusher‚ which apply a plurality of the dynamic jaws and a plurality of eccentric shaft structures‚ which will reduce the loads of the machine when the jaw crusher running. And it is easy to start‚ smooth to run and with low energy
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Additional to this‚ we were able to measure the rotational oscillation of a Torsion pendulum that was rotating on its central axis. With this data we created a sine curve to display the oscillating effect which was made possible by using the translational oscillation. After that‚ my partner and I created a histogram that displayed the different lengths of the period of oscillation. This histogram used the Torsion pendulum to make the graph. In both of these mini labs‚ they displayed the principle of
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8. Write an equation that expresses the conservation of mechanical energy in a system where the only forms of mechanical energy are kinetic energy and gravitational potential energy. 9. A pendulum is raised 1.5 cm and allowed to fall. If air resistance is negligible‚ how high will the pendulum rise on the
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1 Numerical Methods for Differential Equations 1 2 NUMERICAL METHODS FOR DIFFERENTIAL EQUATIONS Introduction Differential equations can describe nearly all systems undergoing change. They are ubiquitous is science and engineering as well as economics‚ social science‚ biology‚ business‚ health care‚ etc. Many mathematicians have studied the nature of these equations for hundreds of years and there are many well-developed solution techniques. Often‚ systems described by differential
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.....................22 4. The syntax of the English postmodernist text...........................................24 1.4.1. Text syntax of the English postmodernist novel.....................................28 1.4.2. Sentence structure of the English postmodernist text............................33 Chapter 2. SYNTATCTICAL PECULIARITIES OF THE NOVEL ‘ANGELS AND INSECTS’ by A. S. BYATT……………………………………………. .38 2.1. Text Syntax of ‘Angels and Insects’ by A.S. Byatt…………………
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Equipment Calibration is defined as the act of adjusting and evaluating the precision and accuracy of measured equipment. It allows the user to get an accurate and precise reading of measurements to its actual true value. However‚ in order for the experiment to be effective is must consist of validity‚ reliability‚ and objectivity. Validity is defined as the ability of a test to measure what it claims to measure. Reliability is the consistency of test results and objectivity is defined as a test
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GRADE 8 (ELA) EXEMPLAR LESSON – Teacher Copy Quarter 3‚ Weeks 28-29: 03/11/13 – 03/22/13 |Learning Objectives | The goal of this exemplar lesson is to give secondary students an opportunity to explore targeted passages of complex texts in order to examine the point of view of a man who survived slavery. Through teacher and student independent
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wong (eyw89) – Quiz 2 Practice – sudarshan – (57415) 1 This print-out should have 59 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. face of the table? Assume the boxes each have masses of 2.0 kg‚ the coefficient of static friction is µs between table and box‚ and the acceleration due to gravity is 10 m/s2 . 001 10.0 points A block accelerates 3 m/s2 down a plane inclined at angle 27.0◦. The acceleration of gravity
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Chapter 4 First Half Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A net force of 5.0 N moves a 2.0-kg object a distance of 3.0 m in 3.0 s. How much work is done on the object? a. 1.0 J c. 10. J b. 30. J d. 15 J 2. A 0.50-kg sphere at the top of an incline has a potential energy of 6.0 J relative to the base of the incline. Rolling halfway down the incline will cause the sphere’s potential energy to be: a. 12 J c. 3.0 J
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