Introduction The aim of this experiment was to improve our understanding of the model of an Electric Field and Electric Potential. This was done by examining the locations between multiple electrodes connected to a power source of DC electricity. Finding the lines of equal potential difference for two different 2-dimesioanl charge distributions. An equipotential line is a line that has a potential difference equal to zero. Using voltage probes‚ the equipotential lines found were sketched along with the lines
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entities important to environmental scientists? Be able to define and give examples of the three laws governing matter and energy-how do these laws affect our understanding of matter/energy quantity and quality Be able to differentiate between potential and kinetic energy Be able to discuss the concept of entropy and how this process affects all living things Check out the chemistry review if you feel you need some additional chemistry background for this section I. One important thing about
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chapter 2 chapter outline module 5 Neurons: The Basic Elements of Behavior The Structure of the Neuron How Neurons Fire Where Neurons Connect to One Another: Bridging the Gap Neurotransmitters: Multitalented Chemical Couriers module 6 module 7 The Brain The Nervous System and the Endocrine System: Communicating within the Body The Nervous System The Endocrine System: Of Chemicals and Glands Studying the Brain’s Structure and Functions: Spying on the Brain The Central Core:
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Space based visual attention is when we attend to a certain area of space. This may be for several reasons (e.g. hearing a noise).In the past 30 years of so there has been much research conducted into this area‚ mostly using lab based computer experiments‚ manipulating cues and targets to see how we react to and process them. One of the earliest and most influential metaphors‚ leading the way for many of the others is that by Posner (1980). Posner (1980) came up with the spotlight metaphor to space
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The Tired Swimmer Case Study Go to this Website: http://www.sciencecases.org/tired_swimmer/tired_swimmer.asp Answer the Following Questions for Parts IIV. Part I: 1. What vital signs or symptoms does Annie exhibit? Fatigue‚ blurred vision‚ eye strain‚ shortness of breath‚ loss of control over muscles 2. Can you see any common features in Annie’s signs and symptoms? All relate to nervous system 3. Why is Annie having problems breathing? She was walking up flights of stairs 4. What
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from the straw. The reaction is the movement of the car! The moving Balloon Powered Car has kinetic energy‚ but even an object that isn’t moving has energy. This energy is called potential energy. The potential energy of the car is in the elastic material of the balloon. As the balloon fills with air‚ it builds more potential energy. As the air flows from the balloon‚ it changes to kinetic energy. This is the conservation of energy. Problem: Using the old mousetrap car base and wheels‚ we will investigate
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the kinetic energy that will be present when the liquid is being shaken around. Kinetic energy‚ being constant energy used at work which would be the kinetic state‚ is one of the two types of energy that can be in one or two states. The other is potential energy which is stored energy. The independent variable was the amount of hydrate sodium thiosulfate put into the test tubes. The dependent variables were the time it took for the hydrate sodium thiosulfate to melt and the process in which the
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nerve‚ 10 mV. The direct stimulation of the muscle required a higher voltage in order to get a contraction. This most likely occurs for two reasons. First is the fact that once a nerve reaches its threshold voltage‚ it perpetuates the action potential down the nerve to the muscle. This brings us to the second reason‚ the nerve branches out and reaches many thousand parts of the muscle‚ which all get depolarized. When stimulating directly‚ only the cells surrounding the electrode
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Explain why this is the case. The pressure will vary along the pipe because of several factors such as the existence of friction along the pipe walls causing energy loss and pressure variations‚ and various changes in pipe diameter affecting the potential and kinetic energy variations. Consequently‚ a change in pressure would also be experienced from these factors. Results | |Run 1 |Run 2 |Run 3
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Term 3 Uniform Circular Motion When a body moves in a circular path with a constant speed‚ it is said to undergo uniform circular motion. Although the speed is constant‚ velocity is continually changing‚ since it is constantly changing its direction of motion. Centripetal V V ac ac Acceleration is directed towards the centre of the circle and is therefore called “centripetal acceleration.” ac =v^2r ac =v^2r If T is the time taken for one revolution then: V = 2πrT ac =v^2r
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