把一根铜丝在铅笔上一圈圈密排列绕弯50圈,用刻度尺测得该线圈的长度为7.05厘米.那么,铜丝的直径是___,所用刻度尺的最小刻度是___.
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 18:04:13
![把一根铜丝在铅笔上一圈圈密排列绕弯50圈,用刻度尺测得该线圈的长度为7.05厘米.那么,铜丝的直径是___,所用刻度尺的最小刻度是___.](/uploads/image/z/5316309-45-9.jpg?t=%E6%8A%8A%E4%B8%80%E6%A0%B9%E9%93%9C%E4%B8%9D%E5%9C%A8%E9%93%85%E7%AC%94%E4%B8%8A%E4%B8%80%E5%9C%88%E5%9C%88%E5%AF%86%E6%8E%92%E5%88%97%E7%BB%95%E5%BC%AF50%E5%9C%88%2C%E7%94%A8%E5%88%BB%E5%BA%A6%E5%B0%BA%E6%B5%8B%E5%BE%97%E8%AF%A5%E7%BA%BF%E5%9C%88%E7%9A%84%E9%95%BF%E5%BA%A6%E4%B8%BA7.05%E5%8E%98%E7%B1%B3.%E9%82%A3%E4%B9%88%2C%E9%93%9C%E4%B8%9D%E7%9A%84%E7%9B%B4%E5%BE%84%E6%98%AF___%2C%E6%89%80%E7%94%A8%E5%88%BB%E5%BA%A6%E5%B0%BA%E7%9A%84%E6%9C%80%E5%B0%8F%E5%88%BB%E5%BA%A6%E6%98%AF___.)
把一根铜丝在铅笔上一圈圈密排列绕弯50圈,用刻度尺测得该线圈的长度为7.05厘米.那么,铜丝的直径是___,所用刻度尺的最小刻度是___.
把一根铜丝在铅笔上一圈圈密排列绕弯50圈,用刻度尺测得该线圈的长度为7.05厘米.那么,铜丝的直径是___,所用刻度尺的最小刻度是___.
把一根铜丝在铅笔上一圈圈密排列绕弯50圈,用刻度尺测得该线圈的长度为7.05厘米.那么,铜丝的直径是___,所用刻度尺的最小刻度是___.
想得太复杂了反而不好做,不要考虑绕线圈时铜丝的倾斜,铜丝直径为7.05/50=0.141CM,最小刻度是mm
自己算
0.141cm 1mm
7.05÷50=0.141(cm)=1.41(mm)
最小刻度是1mm(毫米)
不记啊!!!
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收起
第一个0.141 第二个1mm
7.05÷50=0.141(cm)=1.41(mm)
最小刻度是1mm(毫米)