From a given reference string below, show a snapshot of physical memory frames after each memory page is accessed under fifo, opt, and lru page replacement policies then calculate hit rate and miss rate under each policy, assuming that we have only 4 physical memory frames and that all of them are empty at the beginning. 1,4,3,1,2,5,7,1,3,4,3,4,4,5,1

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k