If you dive under-water, you notice an uncomfortable pressure on your eardrums due to the increased pressure. the human eardrum has an area of about 70 mm2 (7×10−5m2), and it can sustain a force of about 7 n without rupturing. part a if your body had no means of balancing the extra pressure (which, in reality, it does), what would be the maximum depth you could dive without rupturing your eardrum?

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.