Hockey puck B rests on a smooth ice surface and is struck by a second puck A, which has the same mass. Puck A is initially traveling at 15.9 m/s and is deflected 27.0 ∘ from its initial direction. Assume that the collision is perfectly elastic. a) Find the final speed of the puck B after the collision.
b) Find the final speed of the puck A after the collision.
c) Find the direction of B's velocity after the collision.

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor