Why do boats float? All boats float‚ but floating is harder and confusing than it sounds and its best explained through a scientific concept called buoyancy. Buoyancy is the force that causes floating. An object will either float or sink depending on its density in the water. If it’s denser than water‚ it mostly sinks; the less dense object usually will float. It doesn’t matter the size of the object is. Plastic that is big as a football field will float because it is less dense that the water. A
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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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wavelength and an index of refraction greater than one for frequencies below the natural frequency of the oscillators (otherwise the phase shift corresponds to a speed greater than c in the material‚ with index of refraction less than one). At a fundamental level this phase velocity‚ greater or less than c‚ is of no particular physical significance‚ because it only applies to the overly-simplified case of singlefrequency sinusoidal radiation permeating all space‚ and such radiation cannot carry a
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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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INTRODUCTION Laboratory experiment 5 is an exercise in hydrostatic. It is designed to demonstrate the stability of a floating cylinder and to familiarize the student with the concept of buoyancy‚ metacenter and metacentric height. It is also an experimental verification of the theory presented in the textbook. The center of the buoyancy of a floating body depends on the shape of the body and on the position in which it is floating. If the body is disturbed by a small angle of heel‚ the center
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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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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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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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Eric Bryan Period 4 Calorimetry Lab Theory: To most people heat and temperature are generally the same thing. But really in a scientific sense there is still a similarity between them but they are different concepts. Temperature is the measure of the average energy of molecular motion in a substance. Heat is the total energy of molecular motion in a substance. Temperature is not energy like heat is‚ it is just measure of it. Now there is also a difference between heat and thermal
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