Question

17 and 18, please help!

17) On board the international space station, a bouncy ball is thrown and collides head-on with another bouncy ball of five times the first one's mass. The collision is elastic. (a) What is the ratio of the final velocity of the lighter ball to its initial velocity? (b) What about the ratio of the heavier ball's final velocity to its the lighter ball's initial velocity? Use the first input box for your answer to (a) and the second for your answer to (b) Answer 1 of 2: Answer 2 of 2: Submit All Answers nter your answer as a string of the etter options ou be eve are correct. For n tance if ink options D and E a correc,then enter 18 which combination of statements is most accurate NOTE: There are only 5 tries for this problem.] ou A A) The random jiggling of atoms in a material is an example of source energy. B) Source energy can never be purely converted into mechanical energy. C) Macroscopic processes that change source energy don't always increase thermal energy as well D) Mechanical energy can be converted back into source energy, with a corresponding increase in thermal energy E) None of the above Answer: Not yet correct, triea 1/7 Submit All Answers

Answer 1

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