pith balls that were equally charged. They were then constructed into a pendulum using strings. Calculations were done to determine the charge on pith balls‚ calculate the mass of the pith balls and to calculate the electrostatic constant. Experimental Procedure: Using the virtual lab website‚ the ball was charged to 120 by rubbing it against the cat’s fur. The charge was then transferred to the pith balls. The angle was taken using a protractor and the distance between the pith balls was measured
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The Action Potential Graphics are used with permission of: Pearson Education Inc.‚ publishing as Benjamin Cummings (http://www.aw-bc.com) ** If this is not printed in color‚ it is suggested you color code the ion channels and ions as you go through this topic. Ions channels and ions should be color coded as follows: Red: Sodium ion channels and sodium ions Blue: Potassium ion channels and potassium ions Page 1. Introduction • Neurons communicate over
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compiled enough data to conclude that the mass of one of these particles‚ which he called an electron‚ was lighter than an atom of hydrogen by around 2‚000 times. He also found the ratio of charge to mass (e/m) would be the same for any electron.
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it to what they can repay doesn’t come naturally to most young adults‚ but they soon learn that it’s necessary if they are going to stay on top of their limited resources. • Building a credit history. It goes on a person’s credit history when they charge small amounts and repay them promptly. Those positive records will follow them when they want to rent an apartment‚ buy a car‚ or apply for certain jobs after college. • A sense of autonomy. At age 18‚ nobody has to have their legal documents‚ signed
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Shylock and Antonio resent and dislike one another. Firstly‚ Shylock hates Antonio because he is a Christian; secondly‚ because Antonio is a Christian and therefore not allowed to charge interest‚ Antonio undercuts Shylock’s business by lending money without charging interest. The fact that Shylock does loan money and charges interest is another reason for Antonio not to like him. As a businessman‚ Antonio must resent Shylock’s ability to earn extra money by charging interest. We know that Shylock
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Nicole Cabrera Eng. 104 Intro. Composition 02/10/13 Wonderful Thunderstorm I remember walking in my tiptoes through an endless hallway with tall white walls. I was little and I was scared. During this everlasting path I was illuminated by a striking white light that came from the sky. Finally I arrived to my mom’s room. I watched her sleep peacefully and doubted about waking her up. As I hesitated‚ my mom slightly opened her eyes and watched me observed her. She gave me a welcoming smile and
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priority energy source over carbon emitting fuels like Oil‚ Gas‚ and Coal. Some of the technique’s that could be used are involving Nano technology “In standard cells‚ the impact of a particle of light (a photon) releases an electron to carry electric charge‚ but it also produces some useless excess heat. Lead-selenium Nano crystals enhance the chance of releasing a second electron rather than the heat‚ boosting the electric current output. Other experiments suggest this phenomenon can occur in
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interior of the neuron has a negative electrical charge that is parallel with the positive charge exterior of the cell. Ions‚ chemicals with too many or too few electrons per the number of protons thus making them positively or negatively charged‚ maintain the harmony of positive and negative charges. Calcium ions accommodate two positive charges. While Sodium and Potassium each embrace one positive charge. Chloride‚ on the other hand‚ contains a negative charge. When at rest‚ the cell membrane of the
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with the presence and flow of electric charge. Electricity gives a wide variety of well-known effects‚ such as lightning‚ static electricity‚ electromagnetic induction and the flow of electrical current. In addition‚ electricity permits the creation and reception of electromagnetic radiation such as radio waves. In electricity‚ charges produce electromagnetic fields which act on other charges. Electricity occurs because of the following‚ an electric charge‚ that is a property of some subatomic
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WAVES & SOUND Refraction waves bending when passing through different materials/medium Doppler Effect the effect of a change in frequency‚ resulting from relative motion between source of wave & observer Sound Intensity loudness‚ rate at which energy flows through an area perpendicular to direction of wave Beats 2 waves of similar frequency causing interference heard as beats Reflection Occurs when particles bounce off one another in opposite direction Decibel
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