Brian Mutembei

Consider the following processes arrival. CPU and I/O burst times. Assume that only one I/O device is available and it operates in FCFS manner. Ignore the switching times for both the CPU and 1/0 device. Assume that there is only one CPU and it uses shortest job first SJF scheduling algorithm. Draw the Gantt chart to select the correct Gantt chart from each of the following Process Arrival time CPU P1 1 5 P2 3 3 P3 5 2 P4 2 6 ΙΟ 3 2 4 5 CPU 3 7 3 2

Engineering, Computer Science / By

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A pair of forces with equal magnitudes, opposite directions, anddifferent lines of action is called a “couple.” When a coupleacts on a rigid object, the couple produces a torque that does notdepend on the location of the axis. The drawing shows acouple acting on a tire wrench, each force being perpendicular tothe wrench. Determine an expression for the torque producedby the couple when the axis is perpendicular to the tire and passesthrough a) point A, b) point B and c) point C. Express youranswers in terms of the magnitude F of the force and the length Lof the wrench. answers: FL,FL,FL

Science, Physics / By

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