An airplane maintains a speed of 627 km/h relative to the air it is flying through as it makes a trip to a city 787 km away to the north. (assume north is the positive y-direction and east is the positive x-direction.) (a) what time interval is required for the trip if the plane flies through a headwind blowing at 38.4 km/h toward the south

Consider a file currently consisting of 200 blocks. assume that the file control block (and the index block in the case of indexed allocation) is already in memory. calculate how many disk i/o operations are required for contiguous, linked, and indexed (single-level) allocation strategies, for each of the conditions listed below. in the contiguous-allocation case, assume that there is not room to grow at the beginning but there is room to grow at the end. also assume that the block information to be added is stored in memory.