telecommunications medium is any material substance that carries an electronic signal to support communications between a sending and receiving device. Another telecommunications device (5) connected to the receiving device (6) receives the signal. The process can be reversed‚ and the receiving unit (6) can send a message to the original sending unit 3. What is a telecommunications protocol? A telecommunications protocol defines the set of rules that governs the exchange of information over a communications
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Tyler Cowan Professor Foltz Biology 181 April 8th 2015 Lab Report: Respiration Abstract: The objective of this lab was to figure out which has a higher cell respiration rate between crayfish and elodea. In order to figure this out we first set up three beakers to represent our control‚ elodea and crayfish and filled them with 75mL of culture solution which were dechlorinated making the solution acidic. We then had to place both the elodea and the crayfish in separate beakers filled with 25mL of
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Lab Report 1 Introduction: Proper chemical formulas entitle many challenges such as the Law of Multiple proportions that states that there may be more than one plausible mole ratio for the elements in that compound. However if we determine the mass of each element in the compound we will be able to get the true chemical formula. In this experiment‚ we used the law of definite proportions to find the chemical formula for a hydrated compound containing copper‚ chlorine‚ and water molecules
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Chapter 6 Switched Wired Networks 1) Baseband transmission dominates in LANs because it is ________ than broadband transmission. A) faster B) less expensive C) Both A and B D) Neither A nor B Answer: B 2) Using link aggregation with two or three trunk lines ________ going to a single faster Ethernet port. A) is less expensive than B) is just as fast as C) Both A and B D) Neither A nor B Answer: A 3) The 802.3 100BASETX standard is defined at the ________ layer. A) physical
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called quarks. The ‘up’ quark has a charge of 2 e : a ‘down’ quark has a charge of – 1 e‚ where e is the 3 3 –19 C). elementary charge (+1.6 x 10 How many up quarks and down quarks must a proton contain? up quarks A B C D 0 1 1 2 down quarks 3 1 2 1 6 A nucleus of the nuclide 241Pu decays by emission of a β-particle followed by the emission of an 94 α-particle. Which of the nuclides shown is formed? A 239 93 Np B 239 91Pa C 237 93
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Title: Acetone Lab Purpose: Use Table M and various indicators to determine the pH of acetone Equipment: Test tubes‚ test tube rack‚ acetone‚ various indicators‚ tweezers Procedure: 1. Fill each test tube with a few drops of acetone 2. Put 2 drops of an indicator into 1 of the test tubes 3. Record color change 4. Determine the pH range based on the color change using Table M and record data 5. Repeat for each indicator 6. To test litmus‚ dip red and blue litmus into acetone and determine
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solute/kg solvent to find the number of moles in 20% antifreeze solution. 6. Using the formula molar mass = grams/moles calculate the molecular mass of antifreeze in the 20% solution. 7. Average the molar masses you calculated in questions 3 and 6. 8. The formula for antifreeze is C2H6O2. Calculate its molarmass using the periodic table. 9. Calculate your percent error. Conclusion: This lab was a phenomenal success! The purpose of determining the freezing points of water
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The questions below draw on the material in Chapter 11 and the associated lecture material. 1. What distinguishes money from other assets in the economy? Money is the most liquid asset. 2. What is commodity money? What is fiat money? Which kind do we use? Commodity money may be used for other purposes. Fiat money is useful only as money. 3. What are demand deposits? Why should they be included in the stock of money? Demand deposits are balances in bank accounts that can be accessed on demand
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Unit 6 questions Chapter 16: 1) Along with railroads‚ the Republicans’ protective tariffs helped build other U.S. industries‚ including textile and steel manufacturing in the Northeast and Midwest and (through a tariff on imported wool) sheep ranching in the West. Tariffs also funded government itself. Tariffs provided the largest share of revenue for the treasury‚ and helped fund the projects. 2) Farmers on the Great Plains faced the challenge of a hostile environment. In the grasslands‚ a cloud
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were 3‚ 10‚ 11‚ 13‚ 17‚ 18‚ 22‚ 24‚ 26‚ 30‚ 31‚ 39‚ 42‚ 45‚ 47‚ and 49 (Table 2b). This indicated that these barrels were above the regulated amount. During this same experiment‚ 26 barrels exceeded the 5% (50ppt) threshold. These were barrels 3‚ 4‚ 6‚ 8‚ 10‚ 11‚ 13‚ 17‚ 18‚ 20‚ 22‚ 24‚ 25‚ 26‚ 27‚ 30‚ 31‚ 34‚ 38‚ 39‚ 42‚ 44‚ 45‚ 47‚ 49‚ and 50 (Table 2a‚ Table 2b). These barrels were not only above the regulated amount‚ but they indicate that measuring using a refractomer would be better to use
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