A380-l tank contains steam, initially at 400°c, 3 bar. a valve is opened for 40 seconds and steam flows out of the tank at a constant mass flow rate of 0.005 kg/s. during steam removal, a heater maintains the temperature within the tank constant. determine final mass remaining in the tank, in kg, and the final pressure in the tank, in bar.

An electric motor is used to drive a power press which makes steel turning moment diagrams 323 pressings from a metal sheet. the motor runs at a mean speed of 50 rev/s. the torque required is 10.0nm for 0.2s, followed by 1.0nm for0.3 s with this sequence then being repeated. what is the minimum power required of the motor and the moment of incrtia required for the t1ywhcel if the speed fluctuations are to be restricted to 1.5%?