Ahole is being drilled in a block of magnesium alloy with a 15- mm drill at a feed of 0.2 mm/rev. the spindle is running at 500 rpm. calculate the material removal rate, and estimate the torque on the drill. the specific energy of the magnesium alloy is 0.5 w-s/mm3 .

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.