A 20 kg body is moving through space (ignore gravity) in the positive direction of an x axis with a speed vi when, due to an internal explosion, it breaks into two pieces. Piece A has a mass of 8 kg moves away from the point of explosion with a speed vA in a direction 30° measured counterclockwise from the +x direction. Piece B with a mass of 12 kg moves along the y axis with a speed of 400 m/s. Goal: Determine the speeds vA and vi..

Oxygen gas enters well-insulated diffuser at 25 lbf/in.2, 420r, with a velocity of 860 ft/s through a flow area of 1.6 in.^2. at the exit, the flow area is 12 times the inlet area, and the velocity is 19 ft/s. the potential energy change from inlet to exit is negligible. assuming ideal gas behavior for the oxygen and steady-state operation of the diffuser, determine the following: (a) the exit temperature, in r(b) the exit pressure, in lbf/in.^2 (c) the mass flow rate, in lb/s