Hamza is a young and energetic production manager of a software production firm. With his hard work, he maximized the monthly profit to Rs 750000 while carefully keeping the price of software as Rs 2250. He utilized the resources in such a dynamic way that firm achieved total product of 225 softwares per month. What total cost was incurred on this production? (Economics) how can i calculate AVC Afc from this data

Fluids at rest possess no flow energy. a)- true b)- false

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

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]