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Determine the size of the contact patch and the maximum contact stresses for a 40-mm-dia steel cylinder, 25 cm long, rolled against a parallel 50-mm-dia steel cylinder with 10 kN of radial force.
a fenced enclosure consists of a rectangle of length l and width 2r and a semicircle of radius r as shown in figure
water flows through a venturi with piezometers attached to the upstream pipe and the minimum area section. the velocity
how much energy kj is needed to accelerate an 1800 kg vehicle from 10 kmh to 30 kmh? assume that the acceleration takes
It is necessary to design a square-section composite bar that will withstand an applied load without deflecting more than a specified amount.The design specification for the bar, including its dimensions and loading criteria, is given below.
measure the velocity of air. If the deflection deflection (the vertical distance between the fluid levels in the two arms) is 7.3 cm, determine the air velocity. Take the density of air to be 1.25 kg/m3.
consider a single sheet flat plate collector where the ambient temperature is 25c the insolation is 900 wm2 and
saturated water at 1 atm and velocity 2 ms flows over a cylindeical heating element of diameter 5 mm. what is the
a 3-lb collar can slide on a horizontal rod which is free to rotate about a vertical shaft. the collar is intially held
a piston-and-cylinder device contains 10 kmol of n-pentane at -35.5 c and 100 bar. slowly the piston is moved until the
a heat exchanger is used to heat cold water at 15oc entering at a rate of 2 kgs by hot air at 85oc entering at a rate
Calculate reactions of a simply supported continuous beam. A beam is simply supported at the ends and is continuous over two spans.
a brayton cycle with regeneration using air as the working fluid has a pressure ratio of 7. the minimum and maximum
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