The rotating element in a mixing chamber is given a periodic axial movement z = z0 sin 2πnt where z0 = 95 mm, and the frequency n = 2.7 s-1, while it is rotating at the constant angular velocity ω = 9.4 rad/s. Determine the maximum magnitude of the acceleration of a point A on the rim of radius r = 112 mm.

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.