In the blockspring arrangement of the gure, the block's mass is 4.60 kg and the spring constant is 460 N/m.The block is released from position xi = 0.300 m.What are (a) the block's speed at x = O, (b) the work done by the spring when the block reaches x = 0, (c) the instantaneous power due to the spring at the release point xi , (cl) the instantaneous power at x = 0, and (e) the block's position when the power is maximum? 0 Bloc I: attached to spring A: positive E ' . _. I\" negauw