The Expanding Universe Objective: To interpret a model demonstrating the theories of our expanding universe. Hypothesis: I believe the two marked points on the balloon will be farther apart each time the balloon is blown up. Materials: * 1 un-inflated balloon (when inflated‚ the balloon should have a round shape and be approximately the size of a soccer ball) * Markers * About 30 cm (12 inches) of string or yarn * Ruler or tape measure Procedures: 1. Place an un-inflated
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Centripetal force (from Latin centrum "center" and petere "to seek"[1]) is a force that makes a body follow a curved path: its direction is always orthogonal to the velocity of the body‚ toward the fixed point of the instantaneous center of curvature of the path. Centripetal force is generally the cause of circular motion. In simple terms‚ centripetal force is defined as a force which keeps a body moving with a uniform speed along a circular path and is directed along the radius towards the centre
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Pendulums and Gravity Ashu Mishra B2 Physics Pooja‚ Logan Meyer Please read #’s 1-8 before you read the bottom section 1. 2. 3. 4. 5. 6. 7. 8. 9. formula for solving the period of a pendulum 10. derivation from #9 to solve for gravity The gravity is inversely proportional to the period Number 5 shows that if there is more gravity and everything else is constant then angular acceleration increases which can be assumed to reduce the period therefore gravity is inversely proportional
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However‚ Jupiter’s gravitational forces were too strong‚ causing the material to not be able to form a planet. These gravitational forces can also cause asteroids to be moved out of the Belt‚ often sending them into the solar system. If an asteroid comes with 1.3 AU of the Sun‚ it is referred to as a Near-Earth Asteroid (NEA)
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shock from anthropology. What do all three of these concepts have in common? Sociological imagination is from C. Wright Mills‚ beginner’s mind theory is from Bernard McGrane‚ and the ideas of culture shock from anthropology are all questions or a singularity with a new way or it could be a different way. Beginner’s mind means we must understand or observe without preconception and must unlearn what we already know. 3. Chapter 1 focuses on contemporary American society‚ saying that America is both
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AS Level Physics: Terms & Definitions:- Measurement Random errors are errors of measurements that result in a scatter of readings about a mean value. Systematic errors are errors of measurement which occur according to some fixed patterns such that they consistently give out an over-estimation or under-estimation of the true value. Accuracy is a measure of how close the results of an experiment agree with the true value. Precision is a measure of how close the results of an experiment
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force a vector? 5. A chair is pushed forward with a force of 185N. The gravitational force of Earth on the chair is 155N downward‚ and the floor exerts a force of 155N upward on the chair. Draw a free-body diagram showing the forces acting on the chair. 6. A physics book is at rest on a desk. Gravitational force pulls the book down. The desk exerts an upward force on the book that is equal in magnitude to the gravitational force. Draw a free-body diagram of the book. 7. Draw a free-body diagram
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Of course the amounts would change because a group of people have a large mass unlike a single person would only have a small mass. A large group would definitely cause the springs to stretch and then compress at a slower rate because of the gravitational pull on every single person jumping up and then coming back
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Problem What effect does the different concentration of hydrochloric acid have to the rate of diffusion of agar that is dissolved with sodium carbonate and phenolphthalein? Introduction Diffusion is a process where the molecules intermingle as a result of their kinetic energy of random motion and is the net movement of like molecules down their concentration gradient‚ which is the energy inherent in their constant molecular motion makes them collide and careen outward from the region of higher
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the following into elements‚ compounds and mixtures: (i) Soil (ii) Sugar 3. The motion of two objects “A” and “B” is represented by the displacement-time graph shown here. Which object is moving with less velocity? 4. Why is the universal gravitational constant called so? 5. If some raisins are kept in a hypotonic solution and grapes in a hypertonic solution‚ and left for a while‚ what change would you observe? Why? 6. (a) What is dry ice? Why it is called so? (b) Suggest a method to liquefy
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