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on6 - mentum 1(b An elastic collision and it also does not...

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Solution for On-Line Homework 6 Energy I Solution to On-Line Homework Problem 6.1() Problem: When does an interaction occur, according to physicists? (Choose the best answer.) Select One of the Following: (a) When two objects touch each other. (b) When two objects collide. (c-Answer) When two objects a±ect each other such that both are accelerated. (d) At a concert, when you smile at the person next to you. Solution An interaction (for our purposes) occurs when two objects a±ect each other such that both are accelerated. Total Points for Problem: 2 Points Solution to On-Line Homework Problem 6.2() Problem: What kind of collision dissipates energy? Select One of the Following: (a) An elastic collision, although it conserves mo-
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Unformatted text preview: mentum. 1 (b) An elastic collision, and it also does not conserve momentum. (c-Answer) An inelastic collision, although it con-serves momentum. (d) An inelastic collision, and it also does not con-serve momentum. (e) An explosive collision, which we haven’t read about yet, so of course there is a question on it (maybe not. ..). Solution Any inelastic collision dissipates energy. The total Fnal ki-netic energy will be less than the total initial kinetic energy. The lost energy can go into heating, sound, deformation, etc. In a totally inelastic collision, the energy dissipated is the maximum amount allowed by conservation of linear momentum. Total Points for Problem: 2 Points 2...
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