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3. Physical period: Uniform circular motion is a kind of periodic motion. The so-called periodicity refers to the fact that after a certain period of time, the moving object repeats back to its original position, and the instantaneous speed repeats back to its original size and direction. The time it takes for an object to move in a uniform circle is called a period. The period is expressed by the symbol T, and the period is also a physical quantity describing the speed of uniform circular motion. The long period indicates the slow motion of the object, while the short period indicates the fast motion of the object.If the programs included in this site have no intention of infringing your copyright, please write to us and we will deal with and reply in time. Thank you!CQ1, …《青春同学会》不仅为明星班设计专属“同学村”，开启了一段四天三夜的“时光重现之旅”，还创造综艺+公演的特殊节目形式，为明星班打造独立的专属影棚与舞台，邀请影视戏剧导演亲自指导明星班级在四天内独立完成一部戏剧并进行公演。被逼入灭亡危机的人们，在残酷的命运中会呈现出怎样的生存方式呢这样的人要是不值得深爱，那还有什么值得去深爱？是值得去深爱。