Find engineering stress and strain-true stress and strain
A cylindrical rod 0.505 in. in diameter initially is loaded to 2.4 x 104 lbs. diameter is noted to be 0.35 in. At this load the Calculate (a) the engineering stress and strain; (b) the true stress and strain.
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The ladder's center of gravity lies halfway between the top and bottom ends. (a) What is the net torque acting on the ladder? (b) What is the ladder's moment of inertia?
A semicircular disk has a mass m and radius r, and it rolls without slipping in the semicircular trough (trough has a radius of 2r).
If the hose is pulled so that the tension in it remains a constant 25.0 N, how long does it take to completely unwind the hose from the reel? Neglect the mass of the hose, and assume that the hose unwinds without slipping.
Calulate the molar solubility of a saturated solution of Ag2SO4 if the Ksp =1.2 x10-5. Write the equilibrium equation and equilibrium expression.
Hydrogen sulfide can be prepared in the laboratory be reacting iron (II) sulphide with dilute hydrochloric acid: 80.0 g. of FeS is reacted with 250.0 ml of 0.80 M HCl. How many liters of H2S can be obtained at 1.00 atm and 273.15 K?
Suppose equal volumes of iron and water interact thermally. Which will change temperature more? If they are initially 30 Celsius degrees apart in temperature, how much will the temperature of each change? Explain your reasoning.
Scores on a university exam are Normally distributed with a mean of 68 and a standard deviation of 9. Using the 68-95-99.7 rule, what percentage of students score above 77?
The scores on the Wechsler Adult Intelligence Scale are approximately Normal with \mu = 100 and \sigma = 15. What is the proportion of adults with scores between 90 and 110?
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