the nucleus is (pick one of the following) greater than; equal to; smaller than the number of protons in the nucleus of the atom. 6. The atomic number of potassium (3919K) is_19_. This means that a potassium atom has _19 protons and 19_ electrons. 7. What is the atomic mass of K? ___39________. 8. The atomic mass represents the number of _protons_ and _neutrons. 9. The isotope 14C differs from 12C in that 14C has (pick one of the following) more; less; same) neutrons. 10. Electrons are arranged
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1. OBJECTIVES (a) To determine the equivalent circuit parameters of a 3-phase squirrel-cage induction motor from laboratory test data. (b) To determine the performance characteristics of an induction motor under load conditions. (c) To control the no-load speed of an induction motor. 2. INTRODUCTION 2.1 Three-phase squirrel-cage induction motors An induction motor is a transformer with a rotating secondary winding. It has two essential components: an outer stationary stator and an
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INTRODUCTION There are many reasons for knowing the identity of microorganisms. The reasons range from the knowing the causative agent of a disease to knowing the correct microorganism in order to make antibiotics. This study was done by applying the following methods; OF Glucose‚ Indole Production‚ and Malonate Utilization test for the identification of an unknown bacterium. The methods will assist in determining the unknown bacterium found in a 55 year old male that was passing blood and mucous
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Daniel Thompson 10/31/14 NT1110 Unit 7 Assignment 1 Complementary Metal Oxide Semiconductor‚ or CMOS‚ is a widely used type of semiconductor. CMOS semiconductors use both NMOS(negative polarity) and PMOS(positive polarity) circuits. Since only one of the circuit types is on at any given time‚ CMOS chips require less power than chips using just one type of transistor. This feature makes them convenient for use in battery-powered devices such as laptops. Personal computers also contain a small amount
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an enzyme found in human saliva and pancreas. It is the digestive enzyme that is needed to breakdown starch molecules. Amylase must be kept at certain conditions to function at its optimum level. This experiment will explore the effect of pH (1‚ 4‚ 7‚ 10‚ and 14) on the function of amylase by using starch and iodine. Usually iodine has a orange-yellow color‚ but iodine and starch react to produce a dark blueblack color‚ so iodine may be used as an indicator to show the rate at which starch is
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References: http://webs.mn.catholic.edu.au/physics/emery/measurement.htm#Measurement http://www.digipac.ca/chemical/sigfigs/experimental_errors.htm http://www.tsb.gc.ca/eng/rapports-reports/rail/2011/r11v0057/r11v0057.pdf
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Tori Suchy Physical Science Honors 1st block October 4‚ 2012 Balloon Powered Car Problem: In order to create a race car that can travel a minimum of eight meters powered by a nine inch balloon. We need incorporate Newton ’s Law of Motion including speed‚ velocity‚ and acceleration. Hypothesis: If a car were to be made out of homemade materials‚ then it would be possible for it to travel 8 meters powered by a nine inch balloon. Independent Variable: building the car from homemade materials
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EXPERIMENT NO. 1 INTRODUCTION TO LAB INSTRUMENTS. 1. BREADBOARD We should be familiar to the following things about a breadboard: * What is a breadboard and what is it used for? * How does it work? * Setting Up. * Limitations. What is a breadboard and what is it used for? A breadboard (or protoboard) is usually a construction base for prototyping of electronics. The term "breadboard" is commonly used to refer to a solderless breadboard (plugboard). It was designed by
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hydrochloric acid is added 5. The solution is then being evaporated on a steam bath until a crust forms over the surface. 6. The solution is cooled and stand overnight before the bright green plates of the hydrochloride‚ trans-[Coen2Cl2]Cl.HCl is filtered 7. During filtered process‚ the product is washed with ethanol and ether before dried at 110 °C. 8. The dull green powder is obtained. (B) Preparation of the cis isomer 1. About 5g of product obtained in A is being dissolved in distilled water
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“2-7 Algebra Lab Percentiles” 1. Find the median‚ lower quartile‚ and upper quartile of the scores. Median: 16.5 Lower quartile: 10.5 Upper quartile: 23.5 2. Which performer was at the 50th percentile? the 25th percentile? the 75th percentile? 50th percentile: Arnold 25th percentile: Ingrid 75th percentile: Brooke 3. Compare and contrast the values for the median‚ lower quartile‚ upper quartile‚ and the scores for the 25th‚ 50th‚ and 75th percentiles. If you estimate the percentiles‚ then the
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