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Three different materials, designated A, B, and C, are tested in tension using test specimens having diameters of 0.755 in. and gage lengths of 2.5 in. At failure, the distances between the gage marks are found to be 2.68 in., 3.02 in., and 3.35 in., respectively. Also, at the failure cross sections the diameters are found to be 0.731 in., 0.645 in., and 0.587 in., respectively. Determine the percent elongation and percent reduction in area of each pecimen.
Measurements of water-balance components have been made for a one-year period on a lake with an area of 4.4 km2 with the following results: P = 350 mm, Qsi = 2.33 x 107 m3, Qgi = 2.2 x 105 m3, Qgo = 0.6 x 105 m3, and Qso = .10 x 107 m3.
For a triangular channel of z=2 side slopes tha tcarries a discharge of 100 cfs at a depth of 5 ft, determine the channel slope S under the assumption that normal flow exists and that n equals 0.022.
A cylinder fitted with a frictionless piston contains 2 kg of superheated refrigerant R-134a vapor at 350 kPa, 100oC. The cylinder is now cooled so that the R-134a remains at constant pressure un- til it reaches a quality of 75%.
Assuming the lagoons are well mixed and that there are no losses or gains of water in the lagoon other than the sewage input, what biodegradation reaction rate coefficient (in day^-1) must be achieved for a first order reaction that governs the de..
Water flows uniformly at a depth of y1 = 40 cm in the rectangular troweled concrete channel shown, which is 10 m wide and has a bed slope of So = 0.040 . What is the velocity in the channel before the hydraulic jump
On a very hot day, I saw a 1.6 meter long steel bar held between two rigid supports that had buckled due to the heat. The bar had a cross section of 10 mm by 40 mm, and I assume was A36 steel.
A piston-cylinder contains 40 kg water of which 20 kg is saturated liquid. The equilibrium pressure of the system is 100 kPa. a) Find the system initial volume b) The water undergoes an isothermal expansion until the pressure reaches 10 kPa.
Define what is meant by the term compile-time binding and list two other terms that are also used to describe it. Explain why compile-time binding can present problems when implementing polymorphism in a program.
Considere a person who consumes 2100 kcal par day, of which 2000 kcal is converted tu hermal energy.( the remaining 100 kcal is used to do work on the environment.) The person has a surface area of 1.8 m² and is dressed in a bathing suit.
A picture of a man performing a pole vault, and the minimum radius of curvature of the pole is estimated by measurement to be4.5 m. If the pole is 40 mm in diameter and it is made of glass-reinforced plastic
Methane is compressed in a piston-cylinder device from initial pressure of 110 kPa and an initial temperature of 25 oC to a final pressure of 1,00 MPa. The compression process is polytropic with n = 1 .10.
the 50-lb block rests on the rough surface for which the coefficient of kinetic friction is 0.2. a forcenbspf 40 s2
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