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A 8.00 multiplied by 107 kg battleship originally at rest fires a 1400 kg artillery shell horizontally with a velocity of +550 m/s.

(a) If the shell is fired straight aft, there will be negligible friction opposing the ships recoil velocity. Calculate its recoil velocity.

(b) Calculate the increase in internal kinetic energy (that is, for the ship and the shell). This is less than the energy released by the gun powder -- significant heat is generated.

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