Asupermarket wants to reward its best customer of each day, showing the customer’s name on a screen in the supermarket. for that purpose, the customer’s purchase amount is stored in a list and the customer’s name is stored in a corresponding list. implement a function def nameofbestcustomer(sales, customers) that returns the name of the customer with the largest sale. write a program that prompts the cashier to enter all prices and names, adds them to two lists, calls the function that you implemented, and displays the result. use a price of 0 as a sentinel.

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero