A disk has 900 cylinders and the capacity of 300 MB. The number of revolutions per minute is 7200 and the seek time (t) as a function of the number of cylinders traveled (x) is t(x)-x [millisecond] (a) Compute the average access time for a contiguous file whose size is 100 MB. (b) Write a simulator that verifies the obtained analytic result. (b) Compute the average access time if this disk uses a cache memory that has the capacity of 1/2 50 MB and the access time of 1 ms

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.

Asimple speed reducer is composed of 2 spur gears. the pinion gear has a pitch diameter of 0.75" and 36 teeth while the driven gear has a pitch diameter of 4.0" and 192 teeth. a)-what is the diametral pitch of each gear? b)-if an electric motor rotating ccw at 3000 rpm is coupled to the pinion, what is the rotational speed of the driven gear? c)-if the torque delivered to the pinion is 1 n-m, what is the torque on the driven gear? d)-what is the power transmitted by the gear train?