distribution for X and Y . 4.12 If a dealer’s profit‚ in units of $5000‚ on a new automobile can be looked upon as a random variable X having the density function fx= 21-x‚0<x<10‚elsewhere find the average profit per automobile. 4.14 Find the proportion X of individuals who can be expected to respond to a certain mail-order solicitation if X has the density function. fx= 2(x+2)50<x<10‚elsewhere 4.28 Consider the information in Exercise 3.28 on page 93. The problem deals with the weight in
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important questions from Hydrostatics: i. Why is it easier to lift a body in a liquid than in the air? ~ We know that‚ Upthrust =Density of fluid*acceleration due to gravity*Immersed volume of the body From the realtion above‚ it is clear that upthrust given by a fluid to a body is directly proportional to the density of the fluid. Also‚ as a matter of fact‚ the density of air is less than that of liquid. So‚ the liquid provides greater amount of upthrust than the air does. This implies that a body
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hi 1. Which of these is not correct as a basic property of electric charges? (a) Total charges in an insulated system is invariable (b) A charged body is electrically unstable (c) * A charged body has equal number of positive and negative charges (d) Positively charged body is deficient of electrons x+q1+q2 = 2 q1 2.Calculate the distance x between charges q1 and q2 shown‚ given the repulsive force between them as 1.2 x 10-4 N‚ take the permittivity of vacuum
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Effects of Population Density and Noise By: Stephanie Davis Psy/460 Instructor Aaron Graczyk September 2‚ 2013 Effects of Population Density and Noise Density and noise is able to effect people differently‚ a person’s personal space; territory and privacy can be disrupted by other people‚ chronic noise‚ and short-term noise. The different effects can be from an annoying noise to a more strong intrusive and anxiety forming illness. When population density increases the personal space‚ privacy
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Eutrophication Introduction Europhication (the over enrichment of aquatic ecosystems with nutrients leading to algal blooms and anoxic events) is a persistent condition of surface waters and a widespread environmental problem (Carpenter‚ 2005). The main cause is excessive loading into the system of phosphorus and nitrogen‚ resulting in high algal biomass‚ dominance by cyanobacteria‚ and loss of macrophytes (Dixit‚ 2005). When the nutrient concentrations rise to extremely high levels‚ eutrophication
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The first of three image overlays I chose to include for my project was Population Density. Geographically my project tends to focus on water pollution on the south shore of Long Island. This map does an excellent job at showing the increasing population density in residential neighborhoods on the south shore. It also shows that there is a significant increase in population on the east end of Long Island. The significant increases in population explains the need for efforts to upgrade sewage treatment
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Abstract 1 Introduction 1 Objectives 2 Theory 2 Apparatus 7 Procedure 8 Results 10 Calculations 14 Discussion 20 Conclusion 21 Recommendations 21 References 22 Appendices 22 Abstract This experiment was performed in order to determine the molarity of a solution and the percent by mass of acetic acid‚ CH3COOH in vinegar. Acetic acid is monoprotic and belongs to the carboxyl family of organic compounds. The titration method is used to neutralize the acids by using the standardized sodium hydroxide
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Figure 12.4: e – log sv’ plot 5. Recompression Index. Determine it from the plot of voids ratio (e) vs log σ plot as (Figure 12.4 or 12.5) 12.11 6. Coefficient of compressibility. It is calculated as follows av = 0.435 Cc/Avg. pressure for the increment 12.12 where Cc = compression index av = Coefficient of compressibility
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Questions & Answers About Your Hair System Density How do I know what density is right for me? The best way to determine what’s right for you is to match the density of your own growing hair on the sides and back. Example: If you have fine thin hair on your sides and back‚ it would be a mistake to order a density for the top more then your growing hair. If the density of the hair system is greater then the density of your growing hair the hair on the hair system will separate and not blend and mesh
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Lecture 4 Density of States and Fermi Energy Concepts Reading: (Cont’d) Notes and Anderson2 sections 2.8-2.13 Georgia Tech ECE 3080 - Dr. Alan Doolittle How do electrons and holes populate the bands? Density of States Concept In lower level courses‚ we state that “Quantum Mechanics” tells us that the number of available states in a cubic cm per unit of energy‚ the density of states‚ is given by: * * mn 2mn ( E Ec ) gc (E) ‚ E Ec 2 3 gv (E) m * 2 m * ( Ev E )
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