The magnitude of the concentrated load is equal to the total load or the area under the curve. f = 18.0 kn the line of action of the concentrated load passes through the centroid of the area under the curve. x- = 63 kn m/18 kn x- = 3.5 m .

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]