Astone is dropped into a river from a bridge 44.0 m above the water. another stone is thrown vertically down 1.72 s after the first is dropped. both stones strike the water at the same time. what is the initial speed of the second stone?

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.