Cortex-M0 is the most energy-efficient processor in the Cortex-M family. Suppose a Cortex-M0 processor takes 100 uA (microamps) in the active mode, and 48 uA in the sleep mode. If the application puts the processor 50% of the time in the active mode and 50% in the sleep mode, and two button cell batteries power the processor, with a total capacity of 600 mAh. How long can the batteries last? (Thumb of rule: Battery Life = Battery Capacity in mA per hour/Load Current in mA *0.70).

Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj