wanted to numerically prove how the diffusion of the gas volumes was inversely proportional to the value of the density of the gas‚ under constant temperature and pressure. The significance of this experiment was that in led to a reevaluation of the concept of the movement of matter‚ realizing that diffusion dealt with small immeasurable elements of matter‚ as opposed to large volumes of air‚ as perceived in the corpuscular theory‚ shedding light into the study of the behavior and structure of matter
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Modelling and Design of Direct Solar Steam Generating Collector Fields M. Eck W.-D. Steinmann German Aerospace Center (DLR)‚ Institute of Technical Thermodynamics‚ Pfaffenwaldring 38-40‚ 70569 Stuttgart‚ Germany The direct steam generation (DSG) is an attractive option regarding the economic improvement of parabolic trough technology for solar thermal electricity generation in the ¨ multi megawatt range. According to Price‚ H.‚ Lupfert‚ E.‚ Kearney‚ D.‚ Zarza‚ E.‚ Cohen‚ G.‚ Gee‚ R
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matter because they have both rest mass and volume. By contrast‚ massless particles‚ such as photons‚ are not considered matter‚ because they have neither rest mass nor volume. However‚ not all particles with rest mass have a classical volume‚ since fundamental particles such as quarks and leptons (sometimes equated with matter) are considered "point particles" with no effective size or volume. Nevertheless‚ quarks and leptons together make up "ordinary matter‚" and their interactions contribute to the
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Torques Introduction During this lab you will become more familiar with the concepts of torque. The purpose of this lab is to determine if the rotational equilibrium condition‚ Στ = 0‚ holds experimentally. Equipment Meter stick (1) - no metal ends Fulcrum (1) Clamps (4) Weight Hanger (1) Mass Set (1) Digital Scale (1) Theory For a body to be in static equilibrium‚ two conditions have to be met: ΣF = 0 and Στ = 0 where F is force and τ is torque. (The torque is the force times the lever arm
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BAND THEORY OF SOLIDS According to quantum free electron theory of metals‚ a electron in a metal experiences constant(or zero) potential and free to move inside the crystal but will not come out of the metal because an infinite potential exists at the surface. Bloch Theorem: According to this theorem‚ the periodic potentials due to the positive ions in metal have been considered. (i.e. the electrons moves in a periodic potential provided by lattice). If the electron moves through these ions‚
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Journal Entry: Making Waves For this assignment you will need a rubber tube‚ a spring‚ or a rope. Tie one end to a fixed support and move it up and down to produce a wave. What type of wave are you producing? Describe it in terms of its motion relative to the direction of energy transport and in terms of whether it is electromagnetic or mechanical. Next‚ you will need a wide pan of water. Repeatedly dip your finger into the water to make a circular wave on the surface. What happens to the wavelength
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The concept of resonance was the broad general idea that enlightened this particular lab. A natural vibrating frequency occurs when a tuning fork vibrates after a student struck the tuning fork. When a tuning fork is struck and placed near the column of air‚ it creates a standing wave. A resonance is created when the frequencies of tuning fork and the column of air are equal to each other. For the resonance to occur‚ the distance between the top of the tube and the water must be either ¼ of the wavelength
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What is Electricity? Electricity is one of the most powerful forces in our lives. As a matter of fact‚ it can even kill you. The most vital part of electricity is called electric energy. This is what we commonly think of when we hear the word electricity. “Electricity” reminds us of anything that we plug into an electrical outlet in order to make it work‚ such as lights‚ refrigerators‚ video games‚ microwaves‚ and computers. Scientists discovered ways to produce electric energy in large amounts
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LESSON 05.01 Wood blocks- solid Hammer- solid Lightning- plasma Fluorescent light bulb- plasma Steam and helium filled balloon is gas Water from a faucet and swimming pool is liquid - Can be distinguished at the molecular level by how the particles are held together - The phase of matter is considered a physical property because a change in a substance’s phase does not change the chemical properties or identity of the substance. - The phases of matter are determined by the kinetic energy
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and Energy of Chapter 18. Between these two chapters‚ I found out that they have some similarities and differences that can be compared. In Chapter 14 which is Kinetics of a Particle : Work and Energy‚ the objectives that I learnt are I knew the concept of a conservation of energy to solve the kinetic problems. Besides‚ I would be able to develop and apply the principle of work and energy that
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