Romar M. Cabinta EXERCISES 15 WORK‚ ENERGY‚ AND POWER A. CONCEPTUAL QUESTIONS 1. Is work done when you move a book from the top of the desk to the floor? Why? Yes. It is because the displacement of the book from the top of the desk to the floor and the force that is applied to the book is parallel with one another. 2. State the law of Conservation of Mechanical Energy in two ways? The law of conservation of energy states that energy may neither be created nor destroyed.
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energy were investigated by performing multiple experiments with differing conditions. Conservation laws state energy is to be conserved in systems with no net external forces. Two trials consisted of inelastic collisions and two trials consisted of elastic conditions. Photogate software helped decipher initial and final velocities in order to perform calculations applied to conservation law equations. In both cases of conservation of momentum and kinetic energy‚ low relative changes in total energy
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conjunctions. Coordinating Conjunctions A coordinating conjunction connects words or groups of words used in the same way. • Coordinating conjunctions connect single words‚ phrases (combination of words that go together in sentences)‚ and clauses/simple sentences (word combinations containing a subject and predicate). • Some common coordinating conjunctions are: and*‚ but*‚ or*‚ nor‚ for‚ so and yet. (*These are the most common!) Examples: 1. Meriwether Lewis and John
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is kg·m/s. During a collision objects transfer momentum to each other‚ resulting in different motions than before the collision. In this activity you will study the motion colliding objects. ELASTIC Collisions 1. What defines a collision as being elastic? 2. Simulate the four elastic collisions below. Complete the table using math formulas and the simulation. BEFORE COLLISION ptotal AFTER COLLISION # m1 m2 v1 v2 v1 v2 1 2.0 kg 2.0 kg 1.5 m/s 0 kg·m/s 2 2.5 kg 5.0 kg -1
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ENGLISH Parts of Speech Every word can be classified as at least one part of speech. Below is a list of the parts of speech. Noun -A noun is a word that is used to name a person‚ place‚ thing‚ quality‚ or action. It can function as the subject or object of a verb‚ the object of a preposition‚ or an appositive. Rocky ran quickly through his big yard. Pronoun -A pronoun is a word that functions as substitute for a noun or noun phrase and designates a person or thing previously specified‚ or
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SPH4U0 2-D COLLISIONS LAB PURPOSE To determine if momentum and kinetic energy are conserved during elastic and inelastic collisions. PROCEDURE AND CALCULATIONS 1. Run both the elastic and inelastic collision simulations and record the data as instructed by the teacher (you will do an import). You will need to base your calculations on the data before and after the collision. Do not use data in the middle because it is not clear exactly when the collision occurs. The software measures time
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best friend and business partner Rahim Kahn‚ standing outside of our house‚ neither one smiling”. The juxtaposition and noun phrase “best friend” and “business partner” present the relationship as both strong and professional‚ while the non-finite clause ‘neither one smiling’ at the end of the sentence emphasises the serious and business-like nature. The effect of Amir’s narrative view point allows the reader to gain and clear understanding of Baba’s and Rahim Kahn’s relationship at this point‚ as
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[This Article appeared in the American Scientist (Nov-Dec 1990)‚ Volume 78‚ 550-558. Retyped and posted with permission.] The Science of Scientific Writing If the reader is to grasp what the writer means‚ the writer must understand what the reader needs George D. Gopen and Judith A. Swan* *George D. Gopen is associate professor of English and Director of Writing Programs at Duke University. He holds a Ph.D. in English from Harvard University and a J.D. from Harvard Law School. Judith A. Swan
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Buffalo men‚ they called them‚ and talked slowly to the prisoners scooping mush and tapping away at their chains. Nobody from a box in Alfred‚ Georgia‚ cared about the illness the Cherokee warned them about‚ so they stayed‚ all forty-six‚ resting‚ planning their next move. Paul D had no idea of what to do and knew less than anybody‚ it seemed. He heard his co-convicts talk knowledgeably of rivers and states‚ towns and territories. Heard Cherokee men describe the beginning of the world and its end
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This paper is going Describe the organization and structure of the American legal system by defining the different roles of the federal and state governments‚ it will also describe the Supremacy Clause and explain what happens when there is a direct conflict between federal and state law. Roles of the Federal Government The founding founders intended the United States to be ruled under the system of federalism. The Introduction to Law textbook defines federalism by saying “federalism is a system
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