Asolid round bar with diameter of 50-mm has a groove cut to a diameter of 45-mm, with a radius of 2.5-mm. the bar is not rotating. the bar is loaded with a repeated bending load that causes the bending moment at the groove to fluctuate between 0 and 2825 n-m. the bar is hot-rolled aisi 1095, but the groove has been machined. a) determine the factor of safety for fatigue based on infinite life and b) determinethe factor of safety for yielding.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.