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A stationary E-kg shell explodes into three pieces. One piece with m3 = 4.0 kg moves horizontallyr along the negative int-axis. The other two fragments, m1 = 1.0 kg and l'l'lg = 1.0 kg move in directions that make BU\" angle above and below the positive s-akis and their speeds are in = 185 mils and V; = 185 mils. What is the magnitude of the velocity [speed] of the 4.0-kg fragment, v3? Please round your answer to one decimal place. During the time a compact disc (CD) accelerates from rest to a constant rotational speed of @ = 38 rad/s, it rotates through an angular displacement of 0 = 11.5 radians. What is the angular acceleration, o, (in rad/s ) of the CD? Please round your answer to the nearest whole number (integer)