Which of the following internal control procedures most likely would deter lapping of collections from customers?

a. independent internal verifications of dates of entry in the cash receipts journal with dates of daily cash summaries
b. authorization of write-offs of uncollectible accounts by a supervisor independent of credit approval
c. segregation of duties between receiving cash and posting the accounts receivable ledger
d. supervisory comparison of the daily cash summary with the sum of the cash receipts journal entries

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

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.