Through his famous 1911 gold-foil experiment‚ Earnest Rutherford‚ a former student of Thomson‚ evolved the atomic model once again. Rutherford and his colleagues fired alpha particles‚ helium atoms that had lost their two electrons‚ at a thin piece of gold foil (only 0.00004 cm in width). They used a screen coated in zinc sulfide to "catch" the alpha particles after they had penetrated the gold foil. The screen would also emit a flash of light where it was hit by an alpha particle‚ which enabled
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QUESTION 1: (a) Identify ONE natural process that has been most significant in the formation of a natural feature shown on you map/diagram. Justify why this is the most important process forming this feature. The Muriwai coastal environment is a unique environment where the coastline and relief is constantly being shaped into landforms such as caves‚ arches‚ stacks and stumps through marine erosional processes and wave refraction. The combination of these processes working in conjunction
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1) Describe two main differences between classical and empirical probabilities. a. Classical probabilities are based on assumptions; Empirical probabilities are based on observations. b. Classical probabilities do not require an action to take place; Empirical probabilities have to have been “performed”. 2) Gather 16 to 30 coins. Shake and empty bag of coins 10 times and tally up how many head and tails are showing. Number of coins: 20 * Consider the first toss‚ what is the
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VALENCE BOND THEORY The ‘mixing’ or ‘blending’ of atomic orbitals to accommodate the spatial requirements in a molecule is known as hybridization. Hybridization occurs to minimize electron pair repulsions when atoms are brought together to form molecules. Possible hybridization schemes: 2nd row elements: sp sp2 sp3 3rd row elements also have: dsp3 d2sp3 Each of these hybridzation schemes corresponds to one of the five fundamental VSEPR geometries. Bonding arises from the overlap
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ELEC150 Circuit Theory I Module 2 Homework Instructions Save this document and place your answers into it so you can submit it to the appropriate homework dropbox. Handwritten solutions should be scanned and saved as a BMP or GIF or JPG image‚ or scanned and pasted into this document. Questions 1. An electron that has left the parent atom is called a ___free___ electron. 2. What is the voltage between two points if 100 J of energy is used to move 20 C between the points? V=
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Genesis 1:1‚ “In the beginning God created the Heavens and the Earth” (NIV). This is a statement from the Bible claiming that there is a god who created everyone and everything on this Earth. This has been an unsolved argument since the beginning of time. Whether or not God exists this argument isn’t based on Him. It’s based whether knowledge or belief is the best way to view things. Saying something like‚ God created the world‚ you would have to rely on how strong your faith is. Belief isn’t
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The Relationship between Kinetic Energy of a dropped object impacting water and height of its resulting wave An Investigatory Project Presented to Mr. De Leon As a Final Requirement in Science and Technology IV By: Ingrid Garcia Rosette Dungca Rochelle Canlas March 2013 Abstract The Relationship between Kinetic
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02.05 Electron Arrangement and EMR: Line Spectra Lab Worksheet Part One (Flame Test): 1 Create and complete a data table for Part One of the lab. It should include the name of the element (or unknown) examined and the color of the observed flame. 1 SolutionNameColor Description Known 1BariumLight GreenKnown 2CalciumRedKnown 3SodiumBright YellowKnown 4 RubidiumPurpleKnown 5PotassiumBlueKnown 6LithiumHot/Bubblegum PinkUnknown 1SodiumBright YellowUnknown 2PotassiumBlue 2 Identify each unknown from
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A Pure Genius “The true sign of intelligence is not knowledge but imagination.” (Einstein). Albert Einstein was an intelligent person who created many things that help us in today’s world. He was born March 14‚ 1879 in Ulm‚ Germany. He grew up in and attended school in Munich‚ Germany. Einstein got his first diploma at the Central School in Aarau‚ Switzerland‚ and soon after was automatically admitted into Federal Institute of Technology (FIT). Albert Einstein had a very mystical life with events
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Inside Einstein’s life Albert Einstein was one of the most influential men of the twentieth century‚ through his amazing scientific discoveries in physics and in nuclear energy‚ and his impact during the Second World War. This man is best well known for his formula E=mc² which “shows the relationship between energy and mass” (Pakhare). Einstein was also credited and recognized for the creation of the atomic bomb‚ and not only that but his theory of relativity. One amazing statement said about
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