A 30 kg girl and a 40 kg boy stand on roller skates, face one another, and push off each other. If the boy accelerates backward with an acceleration
of 6 m/s2, what will be the acceleration of the girl?

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Patricia is trying to compare the average rainfall of new york to that of arizona. a comparison between these two states for the months of july through september would best be measured in

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.