A 45.5 kg student runs down the sidewalk and jumps with a horizontal speed of 4.25 m/s onto a stationary skateboard. The student and skateboard move down the sidewalk with a speed of 4.00 m/s. a) Find the mass of the skateboard. Answer in units of kg. 006 (part 2 of 2) 10.0 points b) How fast would the student have to jump to have a final speed of 6.08 m/s

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.