Steam enters a turbine steadily at 7 mpa and ‘w 600c c with a velocity of 60 m/s and leaves at 25 kpa with a quality of 95 percent. a heat loss of 20 kj/kg occurs during the process. the inlet area of. the turbine is 150 cm2, and the exit area is 1400 cm2. determine (a) the mass flow rate of the steam, (b) the exit velocity, and (c) the power output.

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c. what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?