Apply the defined names Saturday_Morning, Sunday_Morning, and Sunday_Afternoon to the existing formulas on the Volunteer Totals worksheet. Ignore Relative/Absolute value and use row and column names. (Hint: If you receive an error that Excel cannot find any references to replace, make sure that only a single cell, rather than a range, in the worksheet is selected prior to applying the defined names.)

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]