Week #7 Chapter 10 Static and Current Electricity Exercises (p.221) 6. Strictly speaking‚ will a penny be slightly more massive if it has a negative charge or a positive charge? Explain. A negative charge because when it is negatively charged electrons are added to the penny. 17. What is the voltage at the location of a 0.0001 C charge that has an electric potential energy of 0.5 J (both voltage and potential relative to the same reference point)? Potential = energy Charge = 0.5 J / 0.0001
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HG-1 THE HEAT OF FUSION OF ICE Introduction When heat flows into a system there are a number of things that can happen. One result could be a temperature rise. Or‚ the system might even catch fire. A third possibility is a change of state. As you know‚ matter exists in three states (or maybe four‚ the fourth being a plasma)‚ solid‚ liquid and gaseous. At different temperatures‚ the same substance may be in different states. Each state is characterized by the way the interatomic forces act. In solids
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1. Properties of light Reflection The speed of light is measured through the equation: v = λ f. However‚ it turns out that when light is reflected off a surface its speed stays the same. This was first proven by Sir Isaac Newton. Under the assumption of perfectly elastic collision‚ the laws of reflection follow from the laws of motion. To demonstrate‚ consider a particle traveling towards a flat frictionless surface whose horizontal and vertical velocity components are: VX and VY. When the particle
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I. Temperature Measurement 1. A thermometric property is a physical property that changes in a known way with temperature‚ and can therefore be used to measure temperature. The substance used as a thermometer must have a property that varies proportionally / linearly with temperature. [ In other words: When objects are heated or cooled‚ their temperatures change‚ along with some of their properties‚ these properties are known as Thermometric Properties.] Two commonly used thermometric properties
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Ancient Egypt and India’s Daily Life A long‚ long time ago in Egypt and India everyone had a job to do. In fact‚ I have a story to tell you about how they survived each and every single day. I will tell you the similarities and differences on Egypt and India’s daily life. Let me tell you it is crazy cool how they survived such a long life. I will also tell you which daily life would be better to live in. The similarities about Egypt and India’s daily life. They both made art and some examples of
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laboratory. Report by Phillip Chidavaenzi The government laboratory examined samples of bottled water from several suppliers following an inquiry by NewsDay and exposed seven of them as unsafe for drinking. The water being sold under trade names Ad Life‚ Well Pure‚ Aqua Crystal‚ Century and Revive had harmful organisms and was not safe for drinking‚ while that sold under the names LeauChoisie and Aqualite had high chemical compositions. The laboratory falls under the Ministry of Health and Child
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Introduction of Physics: Physics ("knowledge of nature") is the science concerned with the discovery and understanding of the most basic fundamental laws of the universe that control the way everything in the world around us behaves. Discoveries in basic physics have important ramifications for all of science. Physics attempts to describe the natural world by the application of logic scientific methods‚ including modeling by theoreticians. As a core scientific discipline‚ physics is concerned with
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Essay #1 Essay #1: Digital Identity (Due 10.2.2014) For essay #1‚ you are going to write a personal narrative (using argument) about your digital life. What digital devices do you use? What can’t you live without? What do you do on-line? How do you understand your digital identity? In your essay‚ you will need to make a very clear argument about your digital identity and your relationship to the changing digital world. Your completed essay should be a minimum of 750 words. It should
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My Daily Routine I normally wake up at 5:00 am wash my face and brush my teeth with a brush. I take physical exercise to keep my body healthy and fit. Early in the morning I worship to god with flowers and akshitaas. Worship to God I have my breakfast with a piece of bread and cup of a tea. Sometimes I take chapati as well in my breakfast. A typical Nepali Breakfast After having a delicious breakfast I prepare myself for the study with the utmost sincerity. It is against my principle
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Objectives: • To be able to explain how the photoelectric effect experiment works and why a photon model of light is necessary to explain the results. • To study the effect of intensity of light on photoelectric experiment. • To estimate the Planck’s constant‚ h through the simulation. • To be determine how to calculate the wavelength of light‚ the work function of the metal‚ or the stopping potential‚ if given the other two. Beginning with the plate made of sodium. Keep all the parameters
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