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A cylinder of compacted scrap metal measuring 2 m in length and 0.5 in diameter suspended from a spring scale at a location where acceleration of gravity is 9.78m/s^2. If the scrap metal density, in kg/m^3, varies with position z, in m, according to density=7800-360(z/L)^2, determine the reading in the scale, in N.
water flows near a flat surface and soe measurments of the water velocity u parallel to the surface at different
Calculate the force required to punch out a rectangular hole 100m x 50mm in a 2mm thick aluminium sheet. The ultimate strength in shear is 125 MN/m^2.
a pison-cylinder contains 0.8 kg of steam of 300oc and 1 mpa. the steam is cooled at constant pressure until one-half
liquid waterh2o at 200 kpa and 20oc is heated in a chmaber by mixing it with a steam h20 at 200 kpa and 150oc. the
a solar collector is used to dry biomass in a storage bin. outside air at 35o and 60 rh enters the collector and is
the automatic transmission in a car receives 25 kw shaft work and gives out 24 kw to the drive shaft. the balance is
consider a cylindrical specimen of some hypothetical metal alloy that has a diameter of 8.0 mm 0.31 in.. a tensile
Carbon content of steel, A steel contains 55% alpha-ferrite and 45% gamma-ferrite or austenite at 750 degrees celcius. What is the carbon content of steel?
saturated ammonia vapor leaves an evaporator at 10 f and 0.5 lbms. the velocity must be less than 15 fts. what is the
two mating spur gears are 20 mm wide and the tooth profiles have radii of curvature at the line oif contact of 10 and
helium has the lowest normal boiling point of any of the elements at 4.2 k. at this temperature the enthalpy of
suppose that you want to design a column to support a uniform compressive stress stress naught. if the columns cross
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