royal road which leads to our pursued goals. All mankind civilization and technology achievements are evolved based on deposited knowledge from generation to generation. Newton’s first law of motion which laid entire foundation for classical mechanics was named after English physicist Isaac Newton who introduced this great theory in 1687. As we all know‚ prior to Newton there were some other predecessors of note who contributed to inquiring the relationship between a body and the forces acting
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water waves‚ and electromagnetic waves such as visible light‚ X-rays and radio waves. As physical objects have wave-like properties (at the atomic level)‚ diffraction also occurs with matter and can be studied according to the principles of quantum mechanics. Italian scientist Francesco Maria Grimaldi coined the word "diffraction" and was the first to record accurate observations of the phenomenon in 1665. Richard Feynman wrote: [N]o-one has ever been able to define the difference between interference
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properties can be derived from first principles without recourse to particle or wave mechanics. The approach‚ which is referred to as guided-wave mechanics‚ is based on the kinematics of photon propagation rather than field modes‚ the latter tending to obscure the underlying mechanics. As a consequence‚ concepts that appear as postulates in traditional relativistic quantum mechanics appear in guided-wave mechanics as derived quantities with physically intuitive‚ albeit novel‚ interpretations. This
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Effect of Pressure on Fluid Flow. 12. What effect did increased pressure have on the fluid flow rate? The greater the pressure the faster the flow. 13. In the body‚ where does the driving pressure for fluid flow come from? The heart. Pump Mechanics The following questions refer to Activity 5: Studying the Effect of Radius on Pump Activity. 14. What
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Energy: the ability to do work. Work= force x displacement. Power=energy/time Power is measured in watts or horsepower. Joules/sec=watts 1hp=746w=1kw Basal metabolic rate 2000kcal/day= 100w Batteries store energy in chemical form. They release energy by pumping electrons’ through wires from the minus pole to the plus pole. Devices inbetween convert this energy to another form‚ Efficieny- e.motor=85%‚ combustion= 20% Hydrogen is not a source of energy but a means of transportation Types of energy:
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long-handled hooked sticks that are loosely strung with a kind of netted pouch (Farlex‚ Inc.). Behind every shot taken in a lacrosse game‚ elements of biomechanics are implemented. Biomechanics is the “sport science” field that applies the laws of mechanics (movements‚ body angles‚ joint positions‚ etc.)‚ biomedical engineering‚ and physics (gravity‚ forces‚ velocities‚ etc.) to athletic performance (What is 3D Biomechanics). Ben Shear “is a frequent presenter and writer on various topics related
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TOPIC: Spring Mass Oscillator OBJECTIVE: To determine the spring constant (K)‚ using mass system. APPARATUS: STEEL RULE SPRING STOP WATCH TAPE MEASURE SLOTTED MASS THEORY: In classical mechanics‚ a harmonic oscillator is a system which ‚ when displaced from its equilibrium position‚ experience a restoring force‚ F‚ proportional to the displacement‚ X‚ according to Hooke’s Law; F = – KX = mα …………………………………. Where‚
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Schrödinger equation and Heisenberg uncertainty principle enable virtually everything chemistry related today. The fields of pharmaceutical chemistry and polymer science(plastics especially) would still be in their infancy if not for the work on quantum mechanics during this time. These major accomplishments were largely based on complex derivations and rarely had experiments that cost a significant sum. A common argument for the continued research in atomic and subatomic structure is the desire for a
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Universe and Inverse are closely related‚ for the effects of known forces of universe are inverse in nature. Ever since Newton made a bold proposition that there is a force of attraction amongst the planets of planetary system‚ amongst different planetary systems and amongst the different galaxies and varies as Inverse Square of their distances‚ people began to correlate every activities of nature and predict its effect accurately. 1. Kepler’s laws Tycho Brahe’s largest and most accurate collections
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2013 2013 Year 10 science Year 10 science Unit – forced to move – extended response task Sarah Moslund 10L Unit – forced to move – extended response task Sarah Moslund 10L Part A: Rowing is a sport where athletes race against each other in boats the sport is done on rivers‚ on lakes or on the ocean‚ depending on the type of race and the racing discipline. The goal of rowing is to create enough power‚ that the boat will travel a long distance‚ with minimal work. Physics is an important
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