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-A "performance effect" is the performance change resulting from repeated testing. This usually causes a subject to get better or faster at a given test. On the other hand, "fatigue" can cause a subject's performance to decline during repeated testing. Either of these can be considered confounds in the above experiments How could you conduct this series of experiments for all subjects in such a way that you could rule out these confounds? Solution The experiment are do...

20.0 g each of Fe2O3 and AI are mixed together and react according to the following equation. What is the theoretical yield of Fe? Report your answer in grams, to three significant figures. Fe2O3 (g) + 2AI(s) rightarrow AI2O3(s) + 2Fe(s) g Write a balanced net ionic equation for the reaction between lead nitrate and sodium sulfate, in solution.. What is the molarity of a 1.30 L solution containing 6.00 g of NaCN? Report you to the correct number of significant figures. M How many mi...

5. This man has a long history of infectious bronchitis. Why would this chronic smoker be especially susceptible to infections of the bronchi? Solution Smoking leads to irritation in nt in the smoke are highly dangerous . They leads to decrease level of surfactant due to which the alveoli may collapse They lead to increased secretion in the bronchi which further decreases the space for air Smoking leads to decreased function of alveolar macrophages which makes iit suseptible to infe...

1. Which is a carbohydrate in food that is neither digested nor absorbed? DNA Starch c. Cellulose d. Sucrose a. -> b. Glucose Solution Sucrose is a carbohydrate in food that is neither digested nor abosorbed. Starch is converted to glucose and is digested. DNA , Cellulose are irrelevant. So option D is correct answer

The stockholders Solution 60,000 x 8% x $5 = $24,000 is owed to preferred shareholders each year. With cumulative preferred shares, preferred shareholders must be paid any dividends owed (in arrears) before common shareholders receive dividends. 3 years x $24,000 = $72,000 owed to preferred shareholders Also, since the preferred shares are participating, any dividends beyond the prescribed rate (8%) are shared on a ratio basis between preferred shareholders and com...

7. Match the statements and descriptions in column A with the appropriate words in Column B These terms are frequently used with regards to bones. Column A Column B A. Tubercle B. Process C. Epicondyle Hole 2Cavity 3General term for a depression t_-_Deep narrow depression D. Head Enlarged often rounded end E. Body. 6 Constriction between head and body F. Neck G. Sinus H. Foramen Prominent projection Main part Groove 9 Small rounded bump 10 Upon a condyle Fossa Solution 1. G sinus 2...

192 After meiosis Il is complete, how many chromosomes are in each daughter cell? How does this compare to the number of chromosomes in your meiosis daughter cells? How does that number compare to the number of chromosomes in your par- ent cell that started meiosis? Are there homologous pairs of chromosomes in each of the four daughter cells? Are your daughter cells genetically identical?Explain your answer. Activity 8B Crossing Over During Meiosis Materials for group of 4) Pop bead chromos...

88. Which of the following statements is not true of filtration? can sterilize heat sensitive liquids b. a can sterilize provided the pores are exceedingly small c. kills microbes upon contact d. used in preparation of vaccines, vitamins and drugs special filters can be used to trap microbes in ventilation systems e. 89. An effective method of sterilizing heat sensitive liquid is: a. Autoclaving b. UV radiation c. Tyndallization d. Pasteurization e. Filtration 90. Temperature can control ba...

A cylindrical wire has a resistance R and resistivity rho If its length and diameter are BOTH cut in half, what will be its resistance? 4R 2R R R/4 R/2 If its length and diameter are BOTH cut in half, what will be its resistivity? 2rho rho rho/4 rho/2 4rho Solution a)R=4L/d2 this is the original resistance now length and diameter are half means l=l/2 ,d=d/2 Rnew =4(L/2)/((d/2)2) Rnew/R =4(L/2)/((d/2)2)/4L/d2 Rnew/R =(1/2)/(1/4)/0.25 =2 Rnew =2R so the answer is B b...

Assume Research In Motion invested $834 million to expand its manufacturing capacity. Assume that these assets have a seven-year life, and that Research In Motion requires a 12% internal rate of return on these assets. Required 1. What is the amount of annual cash flows that Research In Motion must earn from these projects to have a 12% internal rate of return? (Hint: Identify the seven-period, 12% factor from the present value of an annuity table, and then divide $834 million by thi...