Acylindrical specimen of a brass alloy having a length of 92 mm (3.622 in.) must elongate only 4.60 mm (0.1811 in.) when a tensile load of 93000 n (20910 lbf) is applied. under these circumstances what must be the radius of the specimen? consider this brass alloy to have the stress-strain behavior shown in the animated figure 7.12.

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b

Which scenarios are most effectively explored by conducting an experiment? there is more than one correct answer. select all that apply. researchers want to study the effectiveness of a particular drug for treating migraines. they want to know which dosage of the drug yields the best results with the least side effects. to ensure fair results, the researchers want to ensure that participants and dosage administrators do not know which dosage participants receive. a teacher wants to plan a class fieldtrip and quickly determine where students prefer to go for the class fieldtrip. a car mechanic wants to know which of two engine brands makes better-performing engines. he wants to test the engines in identical situations and rate their performance in a way that can be fairly measured. a chemist studies the properties of a metal compound. she wants to know how the sample size of the metal affects its ability to conduct electricity. she wants to conduct the research in a controlled environment to minimize bias. a realty company wants to know the average income of its clients. the company wants to gather data income from current clients.

If the equation of a perpendicular bisector of a triangle is y = 2x + 7, what is the slope of the side that it is bisecting? explain how you know.