⚠️mark brain list⚠️Which step in the product development process is described in the following scenario? The military reports that soldiers are not happy with the variety of MREs ("meals ready to eat). A team has been formed to investigate the
soldiers' concerns.
O plan the project.
O brainstorm product ideas,
O identify customer needs.
o choose a product concept.

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]