Time Travel Mark Jacob de Paz Course: Comm 2 Instructor: Mrs. Noemi Agner Date: March 14‚ 2011 2 Time Travel Thesis Statement Time travel is possible. Outline: Time travel A. Definition of time travel B. Origins of the concept Theories about time travel A. Time travel forwards 1. Time dilation 2. Time perception B. Time travel backwards 1. Using wormholes 2. Special spacetime geometries Philosophical understandings A. Grandfather paradox B. Novikov self-consistency
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that an object has a velocity of 55 mi/hr. One must include direction information in order to fully describe the velocity of the object. * Distance: Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. * Displacement: Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object’s overall change in position. * Acceleration: Change in speed per time. Distance-time Graphs: Uniform Speed:
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LibraryPirate LibraryPirate Metric Prefixes Multiple 1‚000‚000‚000‚000‚000‚000 1‚000‚000‚000‚000‚000 1‚000‚000‚000‚000 1‚000‚000‚000 1‚000‚000 1‚000 100 10 1 0.1 0.01 0.001 0.000001 0.000000001 0.000000000001 0.000000000000001 0.000000000000000001 1018 1015 1012 109 106 103 102 101 1 10–1 10–2 10–3 10–6 10–9 10–12 10–15 10–18 Name exa peta tera giga mega kilo hecto deka — deci centi milli micro nano pico femto atto Abbreviation E P T G M k h da — d c m m n p f a Physical Constants Acceleration
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Static and Kinetic Friction Introduction The amount of friction force between two surfaces in contact depends on the type of the surfaces in contact and the amount of compression between the surfaces. Static friction is the force that is acting against your force before the object begins to move. If you exert a small push on the box‚ the box will not move because static friction is directly opposite to the push. If you apply a greater force than the static friction force‚ the friction increases
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The 6000kg cart starts from rest (Point A); the cart begins to be moved by electromagnetics that emit 2‚200‚000 Watts. By the 10 metre mark‚ the cart has already reached its maximum speed of 44.72 m/s‚ due to it being accelerated by 36.66m/s (Figure 2.1). The cart is then propelled at a constant speed for a total of 200 metres (Point B); the cart is then left on its own as it enters the curve of the track. The curve has a radius of 100 metres‚ which becomes slowly tighter
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Effects of Movie Piracy on Box-office Revenue Arthur S. De Vany · W. David Walls Published online: 24 August 2007 © Springer Science+Business Media‚ LLC 2007 Abstract Piracy is one of the most challenging problems faced by the motion picture industry. The Motion Picture Association of America estimates that US studios lose more than $3 billion annually in box office revenue from piracy. They have launched a major effort to prevent these losses. Yet their efforts are hampered by the ex post‚ counterfactual
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1. A football field is 120 yd long and 50 yd wide. What is the area of the football field‚ in m2‚ if 1 yd = 91.44 cm? (Points : 5) [pic]5.0 x 103 m2 [pic]2.4 x 103 m2 [pic]4.2 x 103 m2 [pic]3.7 x 103 m2 | | |2. Suppose that an object travels from one point in space to another. Make a comparison between the displacement and the distance| |traveled. (Points : 5) |
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Latihan 5: Magnetism Magnetic Fields 1. An electron gun fires electrons into a magnetic field directed straight downward. Find the direction of the force exerted by the field on an electron for each of the following directions of the electron’s velocity: (a) horizontal and due north; (b) horizontal and 30° west of north; (c) due north‚ but at 30° below the horizontal; (d) straight upward. 2. (a) Find the direction of the force on a proton moving through the magnetic fields in Figure
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Physics of Car Crashes INTERNAL - Notes INJURIES TO A HUMAN: During a car crash‚ there are three different collisions that occur. The first one is the collision of the car and the opposing object‚ the second is the human inside the car and the car itself. The final collision is the ones that occur within the human body itself. BRAIN: The human brain is protected by the cranial cavity or the skull. The brain is suspended in a substance called the cerebral spinal fluid‚ which is denser than the skull
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propagation of light is best described by a wave model‚ but understanding emission and absorption requires a particle approach. The fundamental sources of all electromagnetic radiation are electric charges in accelerated motion. All bodies emit electromagnetic radiation as a result of thermal motion of their molecules; this radiation‚ called thermal radiation‚ is a mixture of different wavelengths. At sufficiently high temperatures‚ all matter emits enough visible light to be self-luminous; a very hot
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