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For Co-Cr alloys often used as replacements for thigh bones, the yield stress (YS) = 517 MPa, the UCS = 1034 MPa, same as the Ultimate Tensile Strength. Modulus of Elasticity E = 230000 MPa. Sketch stress vs strain curve. For a replacement hip made of this alloy, the cross-sectional area is 1x10^(-4)m^2, compresses 0.3m long Co-Cr rod by 0.00003m, calculate strain on Co-Cr rod. Assuming compression is elastic, calculate stress on rod. Then compare stress with given properties. Based on stress value, was the compression purely elastic?
The combustion of one mole of propane, C3H8 (Molar mass 44 g mol-1) releases 2230 kJ. How much heat is released by 6.60 g of propane?
The compound NOCl decomposes to nitric oxide and chlorine according to the following equation: 2 NOCl (g) ? 2 NO (g) + Cl2 (g) Suppose that 0.420 mol NOCl is placed in a 3.00-L flask at a given temperature
Explain the factors that affect rate and relative reactivity. Use a mechanism(s) and reactions to support your claims.
A 9.780 g. gaseous mixture contains ethane (C2H6) and propane (C3H8). Complete combustion to form carbon dioxide and water requires 1.120 mol of oxygen. Calculate the mass percent of ethane in the original mixture.
The Milikan experiment is important because it determined the of an . Using Thomson's and Milikan's the of an was determined. Rutherford's experiment is important because it clearly demonstrated that the is mostly
A 12-liter tank contains helium gas pressurized to 160. What size tank would be needed to contain this same amount of helium at atmospheric pressure 1 ATM.
Calculate the fraction of Fluorine atoms at 1000 K in each of the first three electronic levels based upon the following data
How many isomers of dimethylcyclohexanediol could you get from complete hydroboration-oxidation of 1,4-dimethyl-1,4-cyclohexadiene? Draw them all.
compute the distance r in Angstroms at which the attractive portion of the L-J potential has diminished to an (absolute) value of RT (T=298K).
Chlorine trifluoride is used in processing nuclear reactor fuel. It has a vapor pressure of 29.1 torr at -47.0°C and its heat of vaporization is 30.61 kJ/mol.
Calculate the de Broglie wavelength of an neutron moving at 1% the speed of light. Calculate the velocity of a neutron with a wavelength of 75pm.
Calculate the vapor pressure of a solution made by dissolving 109 grams of glucose
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