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1. +-7 points SerCP11132.P015 My Notes Ask Your Teacher A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E40.4 J and a maximum displacement from equilibrium of 0.268 m. (a) What is the spring constant? N/m (b) What is the kinetic energy of the system at the equilibrium point? (c) If the maximum speed of the block is 3.45 m/s, what is its mass? kg (d) What is the speed of the block when its displacement is 0.160 m? m/s (e) Find the kinetic energy of the block at x 0.160 m (f) Find the potential energy stored in the spring when x -0.160 m. (g Suppose the same system is released from rest atx-O 268 m on a rough surface so that it los es equilibrium at x -0). What is its position at that instant? 1.9נ b, the time it reaches its í stur in pointa rpassing

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