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1) A 12 foot, A-36 steel, column has an outer diameter of 3.0 in and a thickness of 0.25 in. Determine the critical load if the bottom and top are both pinned.
2) A 10 meter wooden column has a square cross section of 50mm x 50mm. Determine the critical load if the bottom is fixed and the top is pinned. (E=13 GPa, ?y = 40MPa)
we have a mixture that is 20 mol propane 35 mol n-butane and 45 mol n-hexane. if a flash drum operates at 400 kpa what
When does a 2x2 orthogonal matrix Q with det(Q) = 1 describing a 2 dimensional rotation have real eigenvalues and eigenvectors?
A sensitive instrument with mass 113 kg is to be installed at a location where the acceleration is 15.24 cm/(s^2) at a frequency of 20 Hz. It is proposed to mount the instrument on a rubber pad with the following properties: k=2802 N/cm and damping r..
water at 200kpa with a quality of 90 enters a well insulated compressor. it leaves this compressor at 1 mpa 300 celcius
36 kghour of r-134a steadily enters a compressor as a saturated vapor at 20 degrees celsius and leaves at 1.6 mpa and
a pitcher on the umassd baseball team throws a 5 oz baseball with a diameter of 3 inches at a speed of 180 miles per
question 1 entropya in a coal fired thermal power station indicate where the exergy contained in the coal is destroyed.
How many cycles will the material tolerate at a stress amplitude of +- 70MPa and zero mean stress? How will this change if the mean stress is 10 MPa? What if the mean stress is -10MPa? The tensile strength of the alloy is 200MPa.
estimate the tensile strength of the wire and the work required to take 1m3 of the wire to the point of necking. the
A power plant operates a regenerative Rankine cycle with one open feed water heater and has a net power output of 1x10^9 Btu/hr. When the steam exits the boiler it’s temperature is 1000°F and its pressure is 1400 psi. At the exit of the first stage o..
the inlet to a nitrogen compressor is a pipe of 5cm internal diameter its outlet is a pipe of 2 cm internal diameter.
let us compare these results to our expectations. we expected the horizontal distance to be on the order of 100 m and
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