The change in diameter of a large steel bolt is carefully measured as the nut is tightened. Knowing that E=29*10^6 psi and v=o.3, determine the internal force in the bolt if the diameter is observed to decrease by 0.5*10^-3 in?

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

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?