the branch of science concerning the study of matter and energy and the interactions between the two. Physics tries to explain the nature of the world around us‚ how things happen and why. Swimming displays some physical properties‚ such as buoyancy‚ drag resistance and propulsion. We swimmers are at a constant battle to stay afloat‚ while fighting through the water and propelling ourselves forward‚ and we do so using technique. Buoyancy is the power to float or rise in a fluid. This relates to swimming
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automobiles with air and they cause: Drag (resistance to forward motion) Lift / down force (come into play during cornering and acceleration) Lateral forces (comes into play during cornering) Moments in roll‚ pitch and yaw As a result these factors have to be taken into consideration during automobile design. THEORY BEHIND AERODYNAMIC FORCES The sources of aerodynamic forces are Viscous forces Drag (form drag) The major among both of these is the form drag caused by pressure differences between
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Have you heard of a fierce warrior queen? Her name is Queen Isabella. She was born to King John II of Castile and Queen Isabella of Portugal. Once her father had died she was sent away by her brother. Queen Isabella was never really into royalty until her coronation day. On that day she was presented with men on horse carrying a sword to make a cross. She had changed history for that sign had only been for men. Even though Queen Isabella I unified spain and supported Columbus‚ she killed those who
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describe the different tensions between Elizabeth I and Mary Queen of Scots. This is an important topic to discuss during the Elizabethan era. The aggressive tensions between the two rulers were crucial to the lifestyles of the commoners. During the reign of Elizabeth I‚ 1558-1603‚ and Mary‚ Queen of Scots‚ 1542-1567‚ tensions between England and Scotland entered a climactic point. Mary‚ Queen of Scots experienced a riotous reign as queen. As soon as she was forced to abdicate the throne‚ Mary fled
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resultant force and state whether the object is at equilibrium. sin52=0.788; cos52=0.616; sin25=0.423; cos25=0.906; sin27=0.454; cos27=0.891; sin26=0.438; cos26=0.899; 2. If the mass of the plane is 1700kg‚ and drag force is 50kN‚ determine what should be the aerodynamic lift force and engine’s thrust so that the plane flew with constant velocity. 3. The spring was extended to 3cm under mass of 500g. Determine the spring constant. 4. The distance between
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of flow layer . . . . . . . . . . . . . . . . . . . . . . . . . . . Velocity distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 4 5 7 9 Ch´zy coefficient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 e Drag coefficient‚ lift coefficient and friction coefficient . . . . . . . . . . . . 14 Exercise .
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Queen Mary 2 Project Queen Mary 2 or QM2 is the largest passenger ship ever built. The ship has a nightclub‚ a spa‚ a wine bar‚ 15 restaurants and bars‚ a library‚ and a planetarium. The ship is 1‚132 feet long‚ has the capacity to carry 2‚620 passengers‚ and weighs about 151‚400 tons. The maiden voyage on January 14‚ 2004 made history‚ and the project was such a success that it was awarded a maritime Oscar from Berlitz in their 2005 guide to Ocean Cruising and Cruise Ships. The project
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may lift your back foot partly off the floor and swivel on it‚ but the service laws require you to keep some part of both feet in contact with the floor until you hit the shuttlecock. You must not lift a foot entirely off the ground‚ and you must not drag a foot along the floor. Basic serving technique Backhand low serve Backhand flick serve Backhand drive serve Forehand low serve Forehand flick and drive serves Forehand high serve Hitting action Serving tactics As you turn
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Lizbeth Rosario Mr. Saleeba English IV 04 October 2017 Why was Queen Elizabeth I of England a good leader? “I know I have the body of a weak and feeble woman‚ but I have the heart and stomach of a king and of a king of England too” (Queen Elizabeth I). Queen Elizabeth I was Queen of England‚ Ireland and Wales from 1558 to 1603. She was called the Virgin Queen of legend; she refused to marry and wanted to have authority by herself that is how she became so successful. She was a very intelligent
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1908. Unlike other designs‚ the dimple proved to be the most aerodynamically efficient. Dimpled balls fly farther than non-dimpled balls due to the combination of two effects. There is drag‚ which is the force acting opposite to the object to slow it down‚ lift which is the force acting at a right angle to drag and generally upwards‚ and gravity. How is lift created? Newton’s third law states that for every action there is an equal and opposite reaction. The ball when spins exerts a force
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