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A mild steel plate of thickness 15 mm has a 50 mm diameter hole punched in it. If the ultimate shear stress of the steel is 275 MPa, determine (a) the punching force required, (b) the compressive stress in the punch.
a reheat cycle operates with initial steam conditions of 1500 psia and 1000 degrees fahrenheit at the inlet to the
at a surface cutting speed of 190 mmin the productive tool life was 60 minutes. at a surface cutting speed of 225 mmin
Consider a cascade system that uses Carnot refrigeration for the high temperature cycle, and vapor compression refrigeration for the low temperature cycle. Saturated vapor ammonia enters the compressor in the low temperature cycle at 20 psi and exits..
Calculating the mechanical properties of unidirectionally reinforced composites
a satellite is in earth orbit with an altitude at perigee of 555.0 km and an altitude at apogee of 1200.0 km.a. what is
a piece of aluminum foil is .06 mm thick and 730 mm2 in area. its unit cells are fcc. how many unit cells are in the
determine the change in specific entropy between states 1 and 2 of the fluids given belowa r-134a. state 1 t10c p1 4.1
You have a large hydraulic cylinder with a piston diameter of 8.00 inches. The rod of the cylinder is extended 48 inches. The pressure inside the cylinder at time, t = 0.00 sec is 1,000 psig. There is a 10 foot long hose connected to the hydraulic cy..
A steam power plant operates between the pressure limits of 4.5MPa and 15kPa. Steam enters the pump as saturated liquid and leaves the turbine as saturated vapor. Determine the ratio of the work delivered by the turbine to the work consumed by the pu..
an automobile accelerates from rest at 2.2 ms2 for 24.6 s. the speed is then held constant for 19.8 s after which there
the pliers shown in the figure of the book are used to grip a 0.3-in.-diameter rod. knowing that two 60-lb forces are
airplane takeoff from an aircraft carrier is assisted by a steam driven pistoncylinder device with an average pressure
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