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An automobile is found to have a natural frequency of 20 rad/s without passengers and 17.32 rad/s with passengers of mass 500 kg. Find the mass and stiffness of the automobile by treating it as a single-degree-of-freedom system.
Water at 20 C flows across a flat plate at a velocity of 0.25 m/s. compute the distance from the plate’s leading edge to where the laminar boundary layer thickness is 3 cm. Verfiy that the flow is indeed lamiar at this distance.
Two lb of water vapor in a piston-cylinder assembly is compressed at a constant pressure of 250 lbf/in.2 from a volume of 6.88 ft3 to a saturated vapor state. Determine the temperatures at the initial and final states, each in °F, and the work for..
an insulated turbine is operating on nitrogen. the gas enters at 3.8 atm 170degc and expands to 1 atm. the isentropic
an engineer measures the diameter of 20 tubes selected at random from a large shipment. the sample yields a sample mean
The concrete walls and roof of a garage are 15-cm thick. The inside dimensions of the garage are 8-m long, 6-m wide, and 2.5-m high. The door is made of 12-mm thick hardwood and is 6-m wide and 2.5-m high. The garage is modeled in the figure below. O..
a pressure transducer exhibits a temperature sensitivity of 0.05 units per degree celsius and a pressure sensitivity of
a 200-m3 rigid tank initially contains atmospheric air at 100 kpa and 300 k and is to be used as a storage vessel for
A rigid tank contains water vapor at 200 degrees celcius and unknown pressure. When the tank is cooled to 150 degrees celcius, the vapor starts condensing. Estimate the initial pressure in the tank.
Compare measured lengths of the toilet block to measurements computed from traversing. Plot details from your field notes and determine the accuracy.
at a surface cutting speed of 190 mmin the productive tool life was 60 minutes. at a surface cutting speed of 225 mmin
plot the reciprocal lattice for a polycrystalline sample of a material with a simple tetragonal structure and lattice
A cable is placed around three parallel pipes. Two of the pipes are fixed and do not rotate; the third pipe is slowly rotated
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