12.13 Lab Part 1: String Library Functions Specifications These exercises will be recorded as your lab score for the week. Implement the following library functions. Follow each link to their official specification from string. h and ctype. h: strlen size_t strlen(const char* str); strcmp int strcmp(const char* str1, const char* str2);

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

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]

Asimple rankine cycle uses water as the working fluid. the water enters the turbine at 10 mpa and 480c while the condenser operates at 6 kpa. if the turbine has an isentropic efficiency of 80 percent while the pump has an isentropic efficiency of 70 percent determine the thermal efficiency