field surrounds all electrically charged particles. With electric fields‚ one can determine the effects of all of the charges in the environment. In this lab entitled “Electric Fields and Potential Mapping”‚ the main goal obtained was to examine and deliberate the effects of an electric field and electric potential. Examples of some effects of electric fields include resultant forces‚ changes in motion‚ changes in current flow‚ etc. By using conductive paper connected to a power supply and a voltage
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Before and after design of a yo-yo.3 A yoyo works by converting potential energy into different kinds of energy as it falls down. When the string is tightly wound around the axle and the yoyo rests in the person’s palm‚ the yoyo has a lot of potential energy. The potential energy is turned into the two of the following: gravitational energy and the potential to spin as it unwinds. When the yoyo is allowed to fall‚ the potential energy turns into kinetic energy giving the yoyo linear momentum
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with each other. Scalar quantity is one which has magnitude but no direction. Vector is a quantity which has direction as well as magnitude. Thermal Physics: The internal energy is a function of state and the total microscopic kinetic and potential energies of the particles composing the system. The specific latent heat of fusion‚ Lf ‚ is defined as the amount of heat required per unit mass to change a substance from the solid phase to the liquid phase without any change in temperature The
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Introduction Energy comes in different forms and different terms distinguished one form from another. Potential energy is called the energy that possessed by an object due to its position. Kinetic energy is called the energy possessed by an object due to its motion. Energy is neither created nor destroyed; it only converted from one form to another. Conversion energy from one form to another Potential energy can be converted into kinetic energy and vice versa. The classic example of this intra-conversion
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Part 1 of 17 - 1.67/ 5.0010004 Points Question 1 of 60 0.0/ 1.667 Points All of the following belong to feedback systems which control homeostasis EXCEPT A. All of the above are basic components of the feedback system. B. control center. C. receiver. D. receptor. E. effector. Answer Key: C Feedback: Please review chapter 1. Question 2 of 60 0.0/ 1.667 Points Group of related organs that have a common function is called a(n) A. organ.
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patch-clamp electrophysiology‚ investigators have recently cloned‚ expressed‚ and characterized the genes encoding many of these proteins. Ion-channel proteins are under intense scrutiny in an effort to determine their roles in pathophysiology and as potential targets for drugs. Defective ion-channel proteins are responsible for cystic fibrosis‚1 the long-QT syndrome‚2 heritable hypertension (Liddle’s syndrome)‚3‚4 familial persistent hyperinsulinemic hypoglycemia of infancy‚5‚6 hereditary nephrolithiasis
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(+) ions (Ca++) can pass into the muscle fiber which depolarizes the membrane potential. As this happens the voltage-gated sodium channels are triggered opens and allows sodium ions (NaCl-) enters the fiber and action potential spreads along the entire membrane to initiate excitation-contraction coupling. Following the depolorization of the membrane‚ repolarization occurs‚ which reestablishes the negative membrane potential. The ACh within the synaptic cleft is also degraded by AChE so that ACh cannot
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Catapult By: Hasan Abdullah (OSIS#200100360) Group: 1 Class: Introduction to Engineering (Mr.Cornish) Period: 9 Date: May 20‚ 2013 PROJECT OBJECTIVE The project objective was to learn about basic projectile motion theory‚ the mathematical models applicable to various projectile motion situations (e.g. catapult launch)‚ and construction techniques for specific raw building materials. In addition‚ a catapult was to be implemented and built based on an
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TABLE OF CONTENTS 1. IA (Alkaline Metals) 1.1. H………………………………………………………………………..2 1.2. Li………………………………………………………………………..2 1.3. Na………………………………………………………………………2 1.4. K………………………………………………………………………..3 1.5. Rb………………………………………………………………………3 1.6. Cs………………………………………………………………………3 1.7. Fr……………………………………………………………………….4 1. IIA (Alkaline Earth Metals) 2.8. Be………………………………………………………………………4 2.9. Mg………………………………………………………………………4 2.10. Ca………………………………………………………………………4
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kinetic energy? Give your answer as a decimal. 2 An electric winch is used to lift a load of mass 2 kg a height of 1.5 m. It uses 50 J of energy when it does this. i) Calculate the amount of potential energy gained by the load using the formula: Ep = mgh where Ep is the potential energy gained m is the mass of the load in kg g is the acceleration due to gravity (9.8 ms-2) h is the vertical distance moved by the load ii) Now calculate the efficiency of the
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