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An object of mass 4 kg traveling at 10 m/s undergoes and elastic head on collision...

  1. An object of mass 4 kg traveling at 10 m/s undergoes and elastic head on collision with an object of mass 6 kg traveling at 6 m/s in the opposite direction. What are the final velocities of the two masses?
  2. An aircraft carrier steam catapult applies a force of 7.5×105 N over 75 m to launch a jet from rest with a mass of 20,000 kg. What is the speed of the jet at launch?
  3. 2 kg of ice at 00C is mixed with 5 kg of water at 500C. Assuming calorimerty conditions, what is the equilibrium temperature of the mixture?
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