Momentum Term: Name: 1. What is the classical definition of momentum? a. тu?/2 b. mgy с. ту/2 d. ks?/s е. ту 2. Under what circumstances is the momentum of the system conserved? a. no velocity b. no internal forces C. no net external force d. no forces of any kind e. no net mass 3. An object of mass 200 g is initially at rest and is struck by another object of 100 g moving at 0.5 m/s. If the two objects stick together, what is their resulting speed? (Ignore friction.) a. O m/s b. 0.17 m/s c. 0.50 m/s d. 1.00 m/s e. 6.00 m/s 4. Calculate the kinetic energy before the collision in the question above. a. 12.5 J b. 25.0 J c. 50.0 J d. 0.0125 J e. 0.0375 J 5. When the objects stick together, the collision is described as a. totally elastic b. one dimensional c. two dimensional d. bonding e. totally inelastic ons for

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.