1. Define the following terms: a. aqueous solution- a solution in water b. colloid mixture of large molecules that will not settle or join with the other substance it is in c. concentration ratio of mass or volume of solute to mass or volume of solvent d. heterogeneous a mixture is made up by two or more different substance which are (mixed) together but are not combined e. homogenous mixture mixture that is uniform throughout f. Henry’s Law An expression for calculating the solubility
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NGARUIYA4 Mary Ngaruiya John Zamparelli English comp Problem solution essay Final Draft. GANG VIOLENCE IN AMERICAN SCHOOLS There are approximately 27‚900 gangs‚ with 774‚000 members‚ impacting towns‚ cities‚ and communities across the United States. According to a recent bulletin released by the Office of Juvenile Justice and Delinquency Prevention‚ 23 percent of students aged 12 through 18 years reported presence of street gangs in their schools. Almost half (46%) of students in public
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Chapter 2 Solutions Page 1 of 19 Problem 2.1 a) See Appendix A and Appendix B for weights of roofing‚ sheathing‚ framing‚ insulation‚ and gypsum wallboard. Asphalt shingles 3/8 in. plywood sheathing (3/8 in.) (3.0 psf/in) 2x6 @ 16 in. o.c. Fiberglass loose insulation (5.5 in.) (0.5 psf/in) Gypsum wallboard (1/2 in.) (5.0 psf/in) Roof Dead Load (D) along roof slope Convert D to load on a horizontal plane: = 2.0 psf = 1.1 psf = 1.4 psf = 2.75 psf = 2.5 psf = 9.75 psf Roof
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Homework 2 Solution 1. Consider the diagram of the electronic system‚ which shows the probabilities of the system components operating properly. The entire system operates if assembly III and at least one of the components in each of assemblies I and II operates. Assume that the components of each assembly operate independently and that the assemblies operate independently. What is the probability that the entire system operates? 0.9 0.9 0.8 0.8 0.7 I II III 0.95 Solution: P = [1-(1-0.9)*(1-0
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Chapter 1 SOLUTIONS FOR EXERCISES AND PROBLEMS 1.47 Audit‚ Attestation‚ and Assurance Services Students may encounter some difficulty with this matching question because the Special Committee on Assurance Services (SCAS) listed many things that heretofore have been considered “attestation services” (long before assurance services were invented). As a result‚ we believe that this question is a good vehicle for discussing the considerable overlap between attestation and assurance services.
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Solutions to ecological problems Ecology is a very important and urgent issue today. This word means the relation of plants and living creatures to each other and to their environment. Nowadays‚ this relation is damaged. Our environment suffers from ecological problems‚such as: air and water pollution‚ rainforest destruction‚ extinction of plants and animals.If there is a problem – there should be some solutions as well. To begin with‚ one of the biggest ecological problem is water pollution
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Applied Mathematics 1 Trigonometric Ratios with solutions O A O cos θ = tan θ = H H A where O = opposite‚ A = adjacent and H = hypotenuse. sin θ = 1. The angle of elevation of the top of a tree from a point on the ground 10m from the base of the tree is 28◦ . What is the height of the tree? Solution We need to find the height of tree which is opposite an angle of 28◦ .Thus O tan θ = A O = A tan θ height of tree = 10 × tan 28◦ =⇒ height of tree = 5.3m 1d.p. 2. Using a surveying
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This Has To Stop! Each year in America‚ at least 400‚000 Americans lose their lives to cigarettes. This is at least one out of every five Americans. This epidemic is growing on a daily basis. Smoking can damage your body tremendously. Smoking can damage your lungs‚ brain‚ and heart. Smoking is a problem not only for human beings‚ but for America as a whole. Smoking pollutes the air. Cigarettes are made from 4‚000 different chemical compounds and 400 toxic substances. Smoking is also bad for
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Ibuprofen Abstract The project that I chose to research was the effect of Ibuprofen on the heart rate of the daphnia. The reason that I chose to do this was because many people in society use over the counter pain killers without really understanding any of the long term effects of this medicine other than clearing their aches pains‚ and swelling. One of the leading drugs on the market today is Ibuprofen which you may know as Motrin or Advil. Both drugs are identical except for quantity and
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can be as much as 10% to 20% of sales revenues of many organizations. Quality-improvement programs can result in substantial cost savings and higher revenues and market share from increased customer satisfaction. 19-2 Quality of design refers to how closely the characteristics of a product or service meet the needs and wants of customers. Conformance quality refers to the performance of a product or service relative to its design and product specifications. 19-3 Exhibit 19-1 of the text lists
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