本题目来源于试卷: Wave Basic Concepts，类别为 美国物理杯赛(Physics Bowl)
[单选题]
97.23: String L and string H have6y+o3x-ijzczz a6h mqi46d: d th 1mafg;zn e-awv: 70ut+ fhok;e same tension and length. String L has mass m and string H has mass 4m. If the speed waves in string L is v, the speed of waves in string Hv0ghk -t7 uwzanea 1om:;;+ff is
A. is v/2
B. is v
C. 1.4 v
D. 2 v
E. 4 v
参考答案: A
本题详细解析:
暂无
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