A steel rotating-beam test specimen has an ultimate strength of 185 kpsi and is subjected to a completely reversed stress. (a) Determine the fatigue strength for a life of 200,000 cycles. (10 pts) (b) Estimate fatigue life if the amplitude of the stress is 150 kpsi. (10 pts)

Fluids at rest possess no flow energy. a)- true b)- false

The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m

Wiy doeres rere okhn a pump whon working betwon the same pressure range?