Well-insulated rigid tank contains 2 kg of a saturated liquid-vapor mixture of water at 150 kpa. initially, three-quarters of the mass is in the liquid phase. an electric resistor placed in the tank is connected to a 110 v source, and a current of 8 a flows through the resistor when the switch is turned on. determine how long it will take to vaporize all the liquid in the tank. also, show the process on a t-v diagram with respect to the saturation curve.

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)