PHYSICS OF THE PAST One hundred years ago‚ in a poky apartment in Bern‚ Switzerland‚ Albert Einstein‚ then just a 26-year-old patent office clerk still working part-time towards his PhD‚ published five ground breaking scientific papers. Each of these papers‚ written during Einstein’s annus mirabilis ‚ has become a "classic" in the history of science: On a Heuristic Viewpoint Concerning the Production and Transformation of Light ‚ which discusses optical photons and photoelectric effects. Molecular
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Physics 344: Modern Physics University of Wisconsin - Whitewater Spring 2014 Syllabus Department of Physics Instructor: Jalal M. Nawash Office: UH 161. Phone: 472-5116. E-mail: nawashj@uww.edu Office Hours: Monday‚ Friday: 8:30 – 9:30. Monday 2:00 – 4:00‚ Thursday: 1:00 – 2:00 Prerequisites: PHYSCS 181 or PHYSCS 141 and MATH 254. Class location: Upham 141 Class time: 9:55 – 10:45 Monday‚ Wednesday
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the length of the ball in air when it is kicked is the hang time. Air resistance or adding a curve to the ball will increase its hang time. Hang time can be calculated by H= 1/2 g(gravitational acceleration)times t(time) times 1/2. As the player kicks the ball with the inside of his foot he creates a curve on the ball and increases hang time due to air resistance acting on it. Kicking the ball straight will have a low hang time and just keep it low to the ground. The higher the ball is kicked with a
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object in motion to remain in motion. But because of gravity the ball is pulled down and resistance that slows the ball down. A quarterback through the motions of his and body‚ must balance the forward momentum that he gives the ball‚ fighting gravity and air resistance that pulls and slows it down. Aerodynamics is involved during passing because of the spin that is applied. The better the spin the straighter and further the ball will travel. This is accomplished by the quarterback throwing the
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soccer games all of the time and yet few people actually realize the physics that are involved in almost everything that they see or do. While there are multiple ways that physics is used in a soccer game‚ this paper explores three parts and the physics that are involved in each one. The three parts that are going to be discussed are passing‚ heading‚ and throw-ins. These three can explain how physics can work from a soccer ball coming or going in each and every direction. Also‚ every part that is
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Physics of a Guitar (Rough Draft) The guitar is the most played instrument in the music world. The oldest surviving guitar is thought to be made around 1776 in Italy by Gaetano Vinaccia. Though‚ the guitar looks like a simple instrument to construct or play there is a lot of physics behind the creation of it‚ from the strings to the air inside‚ the anatomy‚ and the sound spectrum. There are three types of guitars that are made: nylon acoustic‚ steel-string‚ and electric. Acoustic guitars produce
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References: Austin‚ L.G.‚ 1971--72. A review introduction to the description of grinding as a rate process. Powder Technol.‚ 5: 1--17. Austin L.G.‚ 1973. Understanding ball mill sizing. Ind. Eng. Chem. Proc. Des. Develop.‚ 12: 121--129. Austin L.G. and Bhatia‚ V.K.‚ 1971--72. Experimental methods for grinding studies in laboratory ball mills. Powder Technol.‚ 5: 261--266. Austin L.G. and Luckie‚ P.T.‚ 1971--72. Methods for determination of breakage distribution parameters. Powder Technol.‚ 5: 215--222
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Interpretations: 1. The time required for the objects with different masses to fall equal distances was equal. 2. The average speed of the two different masses was quite similar‚ within one tenth of a second of each other. 3. Yes‚ because physics theory says that objects free falling‚ where the only force acting on them is gravity‚ accelerate at the same rate no matter what their mass is. 4. The change in spacing of the dots tells us that the speed of the object is increased as it falls
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WORKSHEET PHYSICS SECTION A Q1. Suppose you are in a dark room. Can you see the objects in the room? Can you see the objects outside the room? Explain your answer Q2. Write the two laws of reflection. Q3. Write two differences between diffused and regular reflection. Q4. Write whether in each case diffused or regular reflection takes place. a) Wood b) Polished surface c) Mirror d) Marble surface e) Chalk powder Q5. What is the angle of reflection if the angle between
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Ladder Ball Stand Description Ladder Ball a backyard game that has since then become a very popular game for tailgaters‚ backyard parties and pretty much anywhere you want a good game of Ladder Ball to happen. The part that I am discussing though is the Ladder Ball Ladder Stand. The stand is what decides whether you win or lose. It looks like a ladder (hence Ladder Ball) but only has three rungs in the middle. These three rungs have a different point value the top rung being worth one point‚ the
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