The capacity of batteries such as the typical aa alkaline battery is expressed in units of milliamp-hours (mah). an "aa" alkaline battery yields a nominal capacity of 2850 mah. what quantity of interest to the consumer is being expressed by the units of mah?

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0