Engineering, 12.12.2019 03:31 briannag0808
Assume a disk with 400 cylinders is accessing cylinder 50 now and just accessed and served a request on cylinder 51 before that. further assume that the fifo queue of pending requests is 20, 45, 60, 220, 250, 190. what order will the pending requests be satisfied using the following policies, and how many cylinders will the head need to move to satisfy these requests in each case? a. shortest seek time first (sstf)b. lookc. c-lookd. scane. c-scan
Answers: 3
Engineering, 04.07.2019 18:10
Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2
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Engineering, 04.07.2019 18:20
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Engineering, 06.07.2019 03:20
An air-conditioning system consists of a heating section and an evaporative cooler. air enters the heating section at 10°c and 70 percent relative humidity at a rate of 30m^3/min, and it leaves the evaporative cooler at 20°c and 60 percent relatively humidity. if the air conditioning system operates at a total pressure of 98 kpa, determine (a) the temperature and relative humidity of the air when it leaves the heating section, (b) the rate of heat transfer in the heating section, and (c) the rate of water added to air in the evaporative cooler
Answers: 2
Assume a disk with 400 cylinders is accessing cylinder 50 now and just accessed and served a request...
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