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The bending and shear stresses developed at a point in a machine part are shown acting on infinitesimal elements. For each element, calculate
(a) the principal stresses and the orientation of the principal planes
(b) the maximum shear stress.
Water at 350 psia and 800oF enters a nozzle whose inlet are is 0.4 ft2. The flow rate of steam is 20 lbm/s. Steam leaves at 150 psia and at 825 ft/s. Heat losses from the nozzle per is 3.2 BTU/lbm. What is the inlet velocity and the exit temperature.
A sliding collar of m=80Kg falls on to a flange at the bottom of a vertical rod. Calculate the height h through which the mass m should drop to produce a maximum stress in the rod of 350 Mpa. the rod has length L=2m, cross-sectional area A=250mm2, an..
a standard steel angle l2 x 2 x 14 serves as a tension member in a truss carrying a static load. if the angle is made
When gasoline is burned in the cylinder of an engine, it creates a high pressure that pushes on the piston. If pressure is 100 pound-force per square in, and it moves the 4 inch diamater piston a distance of 4cm in 0.1 second, how much horce power..
1. a go-kart including driver weighs 800 lbs. during an aggressive braking event the vehicle decelerates from 60
Is it possible with the data given in Problem 14.24 to find the exact location of the leak?
B) Determine the minimum amount of work [kJ ] required to reach this end state. C) If more than the minimum work is actually used, where does this extra energy go? That is what becomes of the extra energy?
A steel tie bar in a structure is initially 2 m long and 25 mm diameter. What will be the change in length and diameter when carrying a tensile load of 100 kN? The modulus of elasticity is 200 GPa and Poisson ' s ratio is 0.33
the compression stages in the axial compressor of the industrial gas turbine are closed coupled making intercooling
a machine of mass 125kg supported by springs of total stiffness k750knm. the rotating parts have a mass of 2.5kg which
A four-threaded worm drives a 48-tooth worm gear having a pitch diameter of 7.64 in. and a helix angle of 20°. If the shafts are at right angles, calculate the lead and the pitch diameter of the worm.
A 2-Mg car has a velocity of v1 = 100 km/h when the driver sees an obstacle in front of the car. It takes 0.7s for him to react and lock the brakes, causing the car to skid. If the car stops when it has traveled a distance of 225m, determine the coef..
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