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A steel reinforced concrete column of height 3 m has a square cross-section with sides of 375 mm. If the column contains four steel reinforcing rods of diameter 25 mm, determine the stress in each material and the amount of compression when carrying a compressive load of 600 kN. For steel E = 200 GPa and for concrete E = 13.8 GPa.
How many times more ignition energy is required to achieve ignition of a fuel-air mixture at sea level with T = 298 K than at altitude of 6000 m where pressure P = 47,166 Pa and T = 248 K?
1 the critical crack length for a through crack in a thick plate of 7150-t651 aluminum alloy that is in uniaxial
consider a one-dimensional plane wall with constant properties and uniform internal generation qdot. the left face is
Estimate the outlet temperature of the process fluid. Tm,o. Assume, and then justify, fully developed flow and thermal conditions within the tube.
Ten pounds-mass of R-22 is at an initial volume of 4.059 ft3 and pressure of 200 psia. It is compressed isobaric ally until its volume is two-thirds of its initial volume. The piston is then held in place as the refrigerant cools until its temperatur..
Calculate the fluid horsepower to 2 decimal points for the situation given below. The formula for fluid power from a 100% efficient motor is:
A closed, rigid tank fitted with a paddle wheel contains 0.1kgof air, initially at 300 K, 0.1MPa. The paddle wheel stirs the air for 20 minutes, with the power input varying with time according to W = -10t, where W is in watts and t is time, in minut..
a cantilever beam with round cross section is loaded at the tip with a transverse force of 1000 lb. the beam is also
a rocket moving in space far from all other objects has a speed of 2.5 103 ms relative to the earth. its engines are
The compression ratio of an air-standard Otto cycle is 9.5. Prior to the isentropic compression process, the air is at 100 kPa, 17 C, and 600 cm2
a brass nonmagnetic block a and a steel magnet b are in equilibrium in a brass tube under the magnetic repelling force
When temperature increases, the equilibrium concentration of vacancies in a material
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