Write a c program called assignment4.c, that creates a linked list of customer data. each entry in the list is to have the customer’s last name, first name, id (int), balance (float), and a pointer to the next customer data. create a struct for the customer first. then create a pointer ("head") that points to the first element in the linked list (initially null), as a global variable. also, you need to create the following functions: int insertatindex(char * lastname, char * firstna

At steady state, air enters an insulated duct of varying cross-sectional area (similar to a nozzle or diffuser) at 200 kpa, 52°c with a mass flow rate of 0.5 kg/s. at the duct exit, the pressure of the air is 100 kpa, the velocity is 255 m/s, and the cross-sectional area is 2 x 10-3 m^2. assuming an ideal gas model, determine: a)-find the specific volume of the air at the exit, in m3/kg. b)- the temperature of the air at the exit, in k. c)-the velocity of the air at the inlet, in m/s. d)-the inlet cross-sectional area, in m^2.