在均匀媒质中,各点的平衡位置在同一直线上,相邻两质点间的距离

在均匀媒质中,各点的平衡位置在同一直线上,相邻两质点间的距离均为a,如图(a)所示,振动由质点1向右传播,质点1开始振动的速度方向竖直向上,经过时间t,前13个质点第一次形成如图(b)所示的波形,则该波的周期是 _________ ,波速为  ____________

答案

t/2,   16a/t

相关题目

Jo worked at a bush school 76.______ classrooms were made of bamboo and roofs o
Jo worked at a bush school 76.______ classrooms were made of bamboo and roofs of grass . There is no electricity or water there . Many of the students walked a long way to get to school . Jo hoped
  
  
Rest is critical to life and work and a positive attitude towards rest needs to
Rest is critical to life and work and a positive attitude towards rest needs to be maintained. Enough rest is significant to our body and mind   36   a lack of adequate rest, as well as  __37__ a
In the eyes of Premier Wen Jiabao, there is never ____________thing as far as pe
In the eyes of Premier Wen Jiabao, there is never ____________thing as far as peasants are concerned. A. too small a        B. a too small        C. such small a          D. a s
2008年6月18日,中国邮政发行了《海峡两岸建设》特种邮票和
2008年6月18日,中国邮政发行了《海峡两岸建设》特种邮票和邮资封。在《海峡两岸建设》特种邮票中有两枚以“闽台缘博物馆”和“湄州妈祖”为题材
(2010·山东圣泽中英文学校高三上第一次阶段测试) 34. To be
(2010·山东圣泽中英文学校高三上第一次阶段测试) 34. To be frank, I really don’t know what they have in ________, because they’re so different in character. A. common    
2010年10月9日,随着采火“圣女”康辰晨通过凹面镜点燃手中
2010年10月9日,随着采火“圣女”康辰晨通过凹面镜点燃手中的采火棒,广州亚运会圣火在北京居庸关长城的一号烽火台成功采集。此次活动所体现的文
已知一粒大米的质量约为0.000021千克,这个数用科学记数法表
已知一粒大米的质量约为0.000021千克,这个数用科学记数法表示为(    ) A.         B.              C.              D.