SophieStar15
20.02.2022 •
Physics
Two blocks with masses 5m and 6m are on a collision course with the same initial speeds vi. The block with mass 5m is traveling to the left, and the 6m block is traveling to the right. They undergo a head-on elastic collision and each rebounds, retracing its original path. Find the final speeds of the particles. (Enter your answers in terms of vi, the initial speed of each mass.)
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Ответ:
B
UV rays have a high frequency, this plus the high energy It has helps penetrate the skin.