A ceramic is tested in 3-point bend. The ceramic has a flexural strength of 300 MPa. What is the failure load (in Newtons) if the specimen width is 8 mm, specimen height is 2.5 mm and the length is 20 mm between the two lower supports

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]