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A nylon thread is to be subjected to a 10-N tension. Knowing that E = 3.2 GPa, that the maximum allowable normal stress is 40 MPa, and that the length of the thread must not increase by more than 1%, determine the required diameter of the thread.
a two stage cascade refrigeration system is to provide cooling at -40c while operating the high temperature condenser
a hot rolled shaft is subjected to torsional load that varies from 320 nm clock wise to 120 nm anti -clockwise and an
Calculate the actual power transmitted to the second pulley and calculate the power which can be transmitted if the maximum tension in the belt is limited to half of the ultimate strength of the belt.
a 4 kw motor is driving an oil pump with an efficiency of 95 down a 10 mm diameter pipe. if the velocities of the fluid
a supersonic nozzle is also a convergent-divergent duct which is fed by a large reservoir at the inlet to the nozzle.
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
a truck is traveling at v0 60mph when the driver applies the brakes to come to a stop. the deceleration of the truck
determine (a) the reaction at end A and B , (b) the minimum required cofficient of static friction at end A
Using a centrifugal pump, and a flow rate of 60 gal/min, calculate the break hp of the pump using water with a density of 62.4lbm/ft3 and do the same for a nonviscous liquid having a density of 0.85g/cm3.
during a gust of wind the blades of the windmill are given an angular acceleration of 0.2 rads2 where is measured in
a hollow 6 ft. diameter sphere floats half-submerged in seawater. what mass of concrete is required as an external
the question is during the compression of 0.6 kg of gas in a cylinder an amount of work equal to 80 kj is supplied to
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