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A system experiences a heat transfer into the system of 50 Btu and does work against the surroundings of 2100 ft-lbf reducing its horizontal velocity from 2 fps to 1.5 fps. The mass of the system is 3 lbm. Determine the amount if change in internal energy [Btu]. Show energy diagram.
consider laminar parallel flow past an isothermal flat plate of length l providing an average heat transfer coefficient
Determine the stress in a stay at a given temperature. A steel 'stay' of effective length 5m is fitted in between the walls of a ships refrigerated compartment when the temperature is 18 degrees centigrade.
steam enters a nozzle at 8 mpa 400oc with a velocity of 36.9 ms. at the exit of the nozzle the pressure and temperature
for straightening and smooting an air flow in a 50 cm diameter duct the duct is packed with a honeycomb of 35 cm long 4
The static pressure of a location inside moving fluid is measured by a measuring sensor. What happens if the sensor does not move with the fluid?
the wing is supported by a strut be with ball-and-socket joints at b and e and by bearings at a and f. the bearings
Determine the resulting stress equations for σx, σy and τxy given the Airy's stress function ? = a1x^4 + a2(x^3)y + a3(x^2)(y^2) + a4x(y^3) + a5(y^4), where ai are constants. Also determine, if any, the restrictions between constants.
some aircraft component is fabricated from an aluminum alloy that has a plane strain fracture toughness of 35 mpa ?m.
What is the composition of the alloy and what is the temperature at which the first solid phase solidifies? (Estimates rounding to convenient numbers are sufficient.)
a six-station automatic assembly line has an ideal cycle time of 12 sec. downtime occurs for two reasons. first
jet engine cowlings use 5 micrometer diameter whisker filaments of sic that are coated in 3 micrometer of aluminum
steam enters an insulated nozzle with a velocity of 500 ms and a pressure of 5.0mpa and a temperature of 600 degrees
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