Steam passes through a throttling valve as shown. The inlet and exit areas (A_1 and A_2) are both 0.01 -m^3. O Given an inlet velocity of 0.3 m/sec, calculate the mass flow rate of the steam through the valve (in kg/sec). O What is the exit velocity of the steam (in m/sec)? O Determine the change in kinetic energy (in joules/kg) from (1) to (2).