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Draw the Mohr's circles and determine the magnitudes of the principal stresses for the following stress states. Denote the principal stress state on a suitably rotated stress square.
Recompute maximum tensile and compressive stresses if a 120 mm ×10 mm cover plate is added to one flange as shown.
steam enters a turbine with a pressure of 30 bar a temperature of 400 degc at a velocity of 160 ms. steam exits as
If 1 cubic foot is equal to 28.3168 liters and there are 60 seconds in a minute, if a flow rate is 3 cubic feet per minute, how much is it in liters per second?
Calculate the e?ciency of the furnace if the speci?c heat capacity of the water is cp = 4.2kJ/(kgK) and the zero level of enthalpy is at 0?C! (η = 79.6%)
Estimate the average heat transfer coefficient for the exhaust gas flowing inside the tube - estimate the heat transfer coefficient for the air flowing across the outside of the tube.
Measure x, then y, then z and then rezero the calipers and repeat. The x-axis will be in the direction of the lettering. The y-axis is orthogonal to the lettering and the z-axis is the thickness of the block. Look at all the data to identify any..
Calculate the mass flow (in slugs/per second) that comes out the exit of the engine. The plane is at standard altitude 50,000 ft and velocity = 2200 ft/s. Would appreciate attack to problem.
an iron-carbon alloy gear is being hardened by carburization at 1000 oc. calculate the time in hours necessary to
The thermal conductivity of compacted snow is 0.15 W/m · K. The temperature of the ice cap on which the igloo sits is -20°C and has the same thermal conductivity as the compacted snow.
Using the ideal gas model with specific heat ratio, k = 1.4, and ignoring potential energy effects, determine (a) the exit velocity, in m/s, and (b) the rate of heat transfer, in kJ per kg of gas flowing through the nozzle.
a. if the largest internal crack in a polycarbonate sheet is 0.100mm long and there are no surface cracks what is the
The viscosity, µ of a liquid can be measured by determining the time, t, it takes for a sphere of diameter, d, to settle slowly through a distance, l, in a vertical cylinder of diameter, D, containing the liquid. Use dimensional analysis to show h..
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