Chalecos no tienen mangas. Vests don't have sleeves.<span />
Acceleration occurs when velocities change.velocity changes either because the speed changes or the direction change.
Answer:
In physical changes no new materials are formed and the particles do not change apart from gaining or losing energy. ... Particles stay the same unless there is a chemical change whether the matter is solid, liquid or gas. Only their arrangement, energy and movement changes.
Explanation:
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