Aface milling operation is to be performed on cast iron. tool diameter is 5 inches, w = 2 inches, part length = 8 inches, depth of cut = 0.012 inches, f = 0.001 inch/tooth, and n = 250 rpm. find: mrr, power, time, and torque.

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]