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The principal stresses at a given point are sigma_1 = 10 MPa, sigma_2 = ?100 MPa. Sketch Mohr's circle for this state of stress and determine the normal stress on a plane inclined at an angle µ to the principal plane 1. Hence find the range of values of µ for which the normal stress is tensile.
a 60-kg wrecking ball b is attached to a 15-m-long steel cable ab and swings in the vertical arc shown. determine the
you are given a task of compressing a fixed quantity of gas from P1,T1 to P2,T1. you wish to do this using a polytropic process coupled with a constant pressure P2 heat-transfer process. determine the polytropic process that minimizes the entropy ..
2000 kgh of steam drives a turbine that delivers 75 kw of shaft work. superheated steam at 5 bar enetrs the turbine at
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determine the internal energy change of air in a rigid container as its temperature is increased by transferring
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a 50 cm long 800 w electric resistance heating element with diameter .5 cm and surface temperature 120c is immersed in 60 kg of water temperature to 80c. also determine the convection heat transfer coefficients at the beginning and at the end of t..
a sail plane with a lift-to-drag ratio of 25 flies with a speed of 50 mph. it maintains or increases its altitude by
how many lbf does it take for a 4.0 x 103 lbm car to achieve 0 to 60 mph in 10. seconds? use fma where a is
a cube of aluminum 10 cm on each side is initially at a temperature of 300degc and is immersed in a fluid at 100degc.
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