A bimetallic torsion bar consists of a steel core (Gs 75 GPa) of diameter di 25 mm around which is bonded a titanium sleeve (Gt 45 GPa) of inner diameter di 25 mm and outer diameter do 40 mm. (a) If the maximum shear stress in the steel is 50 MPa, what is the total torque, T, applied to the bimetallic bar

Acompressor receives the shaft work to decrease the pressure of the fluid. 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

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.