Name: Q1- (30 points) During a physics lab‚ the student ask to add water to a bucket connect by a negligible mass rope to an 80.0 kg car which is positioned on a track which is inclined 15.00above the horizontal. The idea is illustrated in figure. Consider we are using a frictionless pulley. If the coefficient‚ between the car and the track is 0.200: 150 150 a- Draw the free body diagram and write the Newton’s second law equation for each body‚ car and bucket. (5 points)
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First Year ‘all common’ Subjects for: • • • • • • • Civil Engineering Civil & Rural Engineering Computer Engineering Electronics & Communication Engineering Electrical & Electronics Engineering BEIT BE Software First Year ‘Partial Common’ subjects for: Table of Contents 1. 2. 3. 4. 5. 6. 7. 8. 9. MEC 119.3 Applied Mechanics I (3-2-0) ............................................................................................ 2 ELE 105.3 Basic Electrical Engineering (3-1-2) ..............
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Carnot found out that more work could be done by an engine if….. : There was a greater difference in temperature. 13. How did the SI unit for energy become the Joule? 14. What is the First Law of Thermodynamics? Heat is not destroyed or created‚ but it changes form 15. What is the Second Law of Thermodynamics? Heat only flows in 1 direction from hot to cold. 16. Why do some people still call their refrigerator the “ice box” (usually old people J) ?
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Famous Scientists’ List Name | Birth/Death | Achievements | Albert Einstein | 1879 - 1955 | He is arguably at the pinnacle‚ if the popularity of all the scientists is taken into account. He demonstrated solutions to a trio of mind-boggling topics in Physics in 1905 and shot into the limelight. | Sir Isaac Newton | 1642 - 1727 | "Philosophiae naturalis principia mathematica" called "Principia" is acknowledged as the greatest scientific book ever published. Sir Isaac Newton wrote this in 1687
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A mathematical model which is investigated the thermal and physical behavior of a dish/Stirling system is presented‚ then the system was designed‚ analyzed and optimized. There are many types of heat losses in the dish/Stirling system‚ such as convection and conduction heat losses and radiation heat losses by emission in the cavity receiver and reflection heat loss of solar energy in the parabolic dish. There are also internal and external conduction heat losses‚ energy dissipation by pressure drops
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Heat of Mixing: Ethanol and Water Abstract The temperature change when known amounts of water and ethanol were mixed was determined to see the enthalpy change in an isothermal and isobaric environment. Agreeable data was found compared to similar experiments. As the mole fraction increased of the solution so did the enthalpy until a certain limit of about 0.32. Since water’s structure and unique properties affect many aspects of a solution‚ the solutions enthalpy’s decreased at a certain time
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Chemistry Book Notes: Chapter 21: Buffers and the Titration of Acids and Bases 21-1 Henderson-Hasselbalch Equation THE HH EQUATION OFTEN CAN BE USED TO CALCULATE THE pH OF A BUFFER SOLUTION -buffer >a solution containing both a weak acid and its conjugate base can resist a change in pH by neutralizing either an added acid or an added base. Ex. acetic acid-acetate soln (acid with conj. Base) > Kc for a buffer reaction can = 1/Ka or 1/Kb if you add an acid or base because
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Research Essay- Jacobus Henricus Van’t Hoff Jacobus Henricus Van’t Hoff was born in Rotterdam‚ the Netherlands‚ on August 30‚ 1852. He was the third child in a family of seven children. His father was Jacobus Henricus Van’t Hoff Sr.‚ a physician‚ and his mother was Alida Kolff Van’t Hoff. From a young age he was interested in science‚ nature and philosophy and though of Lord Byron as his idol. Van’t Hoff went against the wishes of his father when he enrolled at Delft University of Technology
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THERMODYNAMICS ENR TECH 3TD3 COMPRESSOR TYPES AND APPLICATIONS PROJECT INSTRUCTOR: DR. REYAD AL-TAIE DATE: JUNE 26‚ 2013 Contents ------------------------------------------------------------------------ I. Introduction………………………………………......3 II. Thermodynamics Properties………...….……………5 III. Thermodynamic Laws……………………………….6 IV. Compression Cycles…………………………………7
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in equilibrium with water‚ at all pressure between atmospheric and 10 bar (150 lb/in2). • To compare between calculated values from experiment data to the data obtained from steam table for vfg and hfg . 2.0. THEORY Thermodynamics is defined as a study related to the transfer of heat and work between a system and the surrounding‚ undergoing a process causing any of the properties of the system change. An ideal gas obeys the equation of state that relates the pressure
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