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A steel plate is to be attached to a support with three bolts. The plate is 50 mm wide and 11.2 mm thick and the yield strength of the steel is 250 MPa. The ultimate bearing strength of the bolts is 540 MPa. A factor of safety of 1.67 with respect to yield is required for the plate. A factor of safety of 4.0 with respect to the ultimate bearing strength is required for the bolts. Determine the minimum bolt diameter required to develop the full strength of the plate. (Note: Consider only the gross cross-sectional area of the plate-not the net area.)
the assembly consisting of a uniform slender bar mass m5 and a rigidly attached uniform disk mass 4m5 is freely pinned
nitrogen and hydrogen are mixed in a steady-flow adiabatic process in the ratio of 4kg of nitrogen per kg of hydrogen.
A steady flow air compressor compresses 50 lb/min from 14 psia and 80 degrees F to a discharge state at 45 psia and 300 degrees F. Heat departs from the air only via circulating water that enters the jacket at 75 degrees F and leaves at 95 degrees..
measuring fracture toughnessthe aim of this demonstration is to use measurements of the load required to propagate a
As shown, a 130 lb bungee jumper wants to jump from the top of a 655 ft high bridge and be able to just touch the water below. Given that the bungee cord has a spring constant of 2.33 lb/ft, what should the bungee cord's relaxed length, l, be for ..
for a first order system with a transfer function of 15s2 given a unit step input pleasea. derive the transfer function
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the frictionless piston has a mass of 16 kg. heat added until the temperature reaches 400 celcius if the initial x is
Why do thermoplastics tend to become brittle in very cold weather?
sleep apnea is a disorder involving brief interruptions of breathing during sleep. many patients who suffer from sleep
an airplane moves forward at a speed w1 971 kph. the frontal intake area of the jet engine is a1 0.8 m2 and the
a 12-in radius cylinder of weight 16lb rests on a 6lb carriage. the system is at rest when a force p of magnitude 4lb
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