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An aluminum 2024 T3 bar of uniform cross sectional area is subjected to a tensile force in the longitudinal direction. if the lateral surface of the bar is confined and not allow to contract during loadin, find the force that is needed to produce a 1 percent longitudinal strain. Compare this with the corresponding load for the bar under simple tension E=72 GPa V=0.33
A block begins to slide down a ramp after being elevated to an angle of 47.5 degrees. What is the coefficient of static friction
a standard reverse-flow cyclone with a length of 5cm has a cut diameter of 250 microns. at a flow rate of 10^-7 m^3/s, what would the diameter corresponding to 90% removal be
Draw a P-V diagram for pure component and label appropriate points such as superheated region, isothermal line, etc.
When the air temperature is 25°C, the pressure gage reads 210 kPa. If the volume of the tire is 0.025 m3, determine the pressure rise in the tire when the air temperature in the tire rises to 50°C.
Calculate the length of 10 equal-sized aeration basins for secondary treatment of a wastewater flow of 10 MGD with 20,000 lb of BOD per day for a conventional activated sludge process with a maximum loading of 40 lb BOD/ 1000 ft3*d.
A measurement was recorded as 171.278 m with a 30-m tape that was only 29.996 m under standard conditions. What is the corrected measurement?
A tank contains 0.05 m^3 of nitrogen gas at -21 C and 10 MPa. Determine the mass of nitrogen, in kg, using: a) the ideal gas model b) data from the compressibility chart Comment on the applicability of using the ideal gas model for nitrogen at thi..
the 3 kg block is released from rest at A and slides down the smooth parabolic surface. determine the maximum compression of the spring
given s=.30/(60-u), where s is the spacing (space headway) in miles, and u is the speed in miles per hour, derive the relationships u-k, u-q, and q-k. Also, estmate the capacity (qmax) of the roadway.
a 2kg piston accelerates to 20m/s from rest. what constant gas pressure is required if the area is 10cm^2, the travel is 10cm and the outside pressure is 100Kpa
Often times, this pressure comes from the fact that community's water supply is stored in an elevated reservoir. Determine how high an elevated reservoir must be so that the water supply has a pressure of 50 psi. Given: the unit weight of water is..
If the BOD5 of a municipal wastewater is 310 mg/L and the BOD U is 340 mg/L, determine the BOD reaction rate constant (base e). What would be the 3 day 30°C BOD Assume, temperature coefficient = 1.047.
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